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December 2003

Are there any screen savers for SCO Unix?  by (various)
- Unix (and Xenix 2.3.4) have a built-in screen saver for VGA only. You have to reconfigure the kernel for this to work. It doesn't work with all hardware, but try it first. Also, it has been reported that VP/ix may not be compatible with this screen saver. To enable the screensaver, set the kernel variable TBLNK to the number of seconds of inactivity which should trigger the screensaver, relink, and reboot.
 
(SCO Unix)comp.unix.sco Technical FAQ 3/9  by (various)
- Questions and Answers Specific to Unix/ODT
 
(SCO Unix)How can I use a PC Card (PCMCIA) with Unix?  by (various)
- This is an old article about PCMCIA support on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What are some third-party backup/recovery products?  by (various)
- There are a couple of categories here - products which are mostly aimed at one or a small number of Unix machines, and those which are aimed at enterprise-wide, multiplatform backup.
 
(SCO Unix)I don't like being restricted to 14 character filenames  by (various)
- Hardly an issue nowadays, but for those with ancient systems: If you're running Xenix, or a version of Unix prior to 3.2v4, I'm afraid you're stuck. Unix 3.2v4, however, includes long filename support on all EAFS filesystems. OSR5 adds two new filesystems, HTFS and DTFS, which also support long filenames. Unixware 7 also supports long file names. More information on long filenames can be found in the section dealing with Unix.
 
(SCO Unix)How do I get a copy of adb?  by (various)
- Ancient OSes sometimes left things out: If you have the Development System, you already have /bin/adb. If not, you may need to grab a copy from your distribution, or it may already have been installed, depending on your OS and version.
 
(SCO Unix)I can't find crypt  by (various)
- Most (all?) of SCO's release notes state that due to American government restrictions aimed at trying to prevent unfriendly nations from having access to data encryption technology, SCO does not ship crypt with their products.
 
(SCO Unix)What do I need to compile programs?  by (various)
- The native OSR5 devsys is installed from the main OSR5 operating system CD (the label even says so, in medium-small print). The UDK comes on its own separate CD with big huge letters, to make sure you install the wrong devsys, which you've apparently done.
 
(SCO Unix)What does the NCALL kernel parameter affect?  by (various)
- This is an old article about NCALL kernal parameter in SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I reset the root password if I forget it? (part 2)  by (various)
- This is for older SCO Unix. There's a complete article on fixing lost Linuxpasswords also.
 
(SCO Unix)How do I reset the root password if I forget it? (part 3)  by (various)
- Password reset for old SCO Unix. See the Linux password reset article also.
 
(SCO Unix)How do I crash out of the install script ?  by (various)
- NOT applicable to anything but older SCO Unix!
 
(SCO Unix)Why can't fsck find my lost+found directory?  by (various)
- This is an old article about lost+found in SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I want more space in my lost+found directory  by (various)
- Increasing lost+found director size for large filesystems. By default, the SCO Unix mkdev fs script creates 62 empty entries in lost+found. Linux does something similar, with mklost+found but apparently chooses the size based on some algorithm.
 
(SCO Unix)What versions/configurations am I using?  by (various)
- This is an old article about determining versions on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)My system is slow  by (various)
- SCO Unix performance tuning: This is a very old article and has little relevance to modern systems. It does remain true that having insufficient memory will cause bad performance but "tuning" is very unusual because most sytems dynamically tune now and do a very good job of it.
 
(SCO Unix)Why did my region table overflow?  by (various)
- (SCO Unix) Each process generally consists of several (usually, but not always, three) regions - typically code, data, and stack. Two copies of the same program running at the same time will often share code, reducing the number of regions required; however, there's nothing to stop a program from using more than three regions, either.
 
(SCO Unix)How are minor device numbers assigned by mkdev hd?  by (various)
- (SCO Unix) How are minor device numbers assigned by mkdev hd?
 
(SCO Unix)I need fax software. Who makes it?  by (various)
- This is an old article about SCO Unix fax software and is only left here for historical purposes.
 
(SCO Unix)Can I add more swap space?  by (various)
- (SCO Unix) If you have space in your Unix partition which is not allocated to any device (i.e. is not being used by a filesystem, your swap device, etc.), use /etc/swap to add this to your system's available swap space.
 
(SCO Unix)Do haltsys and reboot do a sync()?  by (various)
- Yes. haltsys and reboot are both the same file. In some versions, they are a binary, but rest assured that they do sync(). In other versions, they are a shell script and you can look at them to determine that they do call /bin/sync.
 
(SCO Unix)How can I get more than 64k inodes?  by (various)
- This is an old article about formatting hard drives on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Where do I get kermit?  by (various)
- This is an old article about kermit for SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I get messages saying "stat() failed: /tmp/croutPPGa00288: no such file"  by (various)
- This is an old article about SCO Unix cron error messages and is only left here for historical purposes.
 
(SCO Unix)How do I get a file off my distribution diskettes?  by (various)
- (SCO Unix) How do I get a file off my distribution diskettes?
 
(SCO Unix)Will I have problems upgrading my hardware?  by (various)
- (SCO Unix) Upgrading memory - on the hardware side, that's easy; add the memory and run whatever your hardware uses for a setup program. One gotcha here is that many motherboards with L2 cache can only cache up to a certain amount of memory. Check with your motherboard manufacturer. In many cases, you need at least 64 kB of cache per 16 MB of system memory. From the software side, Xenix handles only 16 MB of RAM; different versions of Unix handle different amounts, so check the release notes for your version. The kernel will automatically see the additional memory, but may not put it to optimal use. There are a few kernel parameters which can auto-tune themselves within certain ranges (the best-known is NBUF), but most are fixed at link time. So the short answer is that the system will _use_ the memory, but perhaps not in the way you want it to unless you configure and link a new kernel.
 
(SCO Unix)I typed in the wrong serial number!  by (various)
- This is an old article about SCO Unix serial numbers and is only left here for historical purposes.
 
(SCO Unix)How do I set disk space quotas?  by (various)
- This is an old article about SCO Unix disk quotas and is only left here for historical purposes.
 
(SCO Unix)My ANSI terminal emulator doesn't work properly  by (various)
- This is an old article about terminal emulation for SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What is Skunkware?  by (various)
- This is an old article about SCO Unix Skunkware and is only left here for historical purposes.
 
(SCO Unix)Can I replace csh with tcsh?  by (various)
- This is an old article about tcsh for SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I make the manual pages work for Skunkware?  by (various)
- (SCO Unix) How do I make the manual pages work for things installedfrom S
 
(SCO Unix)How can I restrict logins?  by (various)
- (SCO Unix) Restricting users to a single login session is possible by modifying their .profile or /etc/profile. Watch out for run levels, though!
 
(SCO Unix)How can I prevent root logins over telnet?  by (various)
- This is an old article about disabling root telnet login on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Why can't I unmount my CDROM?  by (various)
- Probably because some process is using it. It might even be you- if you have cd'd there.
 
(SCO Unix)What do "hangup" messages mean during shutdown?  by (various)
- This is an old article about shutdown 'hangup' messages on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Why doesn't the "mutt" I got from Skunkware work?  by (various)
- This is an old article about mutt and ncurses on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What is an "xxevent" error?   by (various)
- xxevent errors in SCO Unix syslog are from Digiboard failing or hooked up incorrectly. Other drivers might use the same message.
 
(SCO Unix)How do I configure a Travan Tape Drive?   by (various)
- Travan tape drives caused me a lot of problems. They were cheap, so many SCO Unix systems used them. Often they were unable to restore data.
 
(SCO Unix)Why does my cron job fail while "at" works?  by (various)
- (SCO Unix) If "at" works and cron does not, your problem is almost certainly a matter of setting proper environment variables.
 
(SCO Unix)Why does my screen get confused if I login in UPPER CASE?  by (various)
- Because the system thinks you CAN'T do lower case, so it's trying to give you a way to still use upper and lower case byt automatically translating for you. Things that should be upper case get a "\" in front of every upper case \L\E\T\T\E\R. That mode was designed for very old, upper-case only terminals, and really isn't useful today; in fact it will cause many programs to act strangely or not to work at all.
 
(SCO Unix)Where do I get a better vi?  by (various)
- Get vim from Skunkware (it also has a good graphical interface). But shouldn't you be reiring this SCO Unix stuff?
 
How can I have a 'command line history & editing' shell under SCO Unix/OS5?  by (various)
- (SCO Unix) How can I have a 'command line history & editing' shellund
 
(SCO Unix)Is it possible to use the mouse in a character application?  by (various)
- (SCO Unix) Is it possible to use the mouse in a characterapplication?
 
(SCO Unix)Are there any antivirus programs for Sco Unix/OpenServer?  by (various)
- (SCO Unix) Are there any antivirus programs for ScoUnix/OpenServer?
 
(SCO Unix)How can I test virus scanning software?  by (various)
- (SCO Unix) Using eicar file to test virus software scanning. The "EICAR STANDARD ANTIVIRUS TEST" file. It's actually a legitimate MSDOS program, but it's all text, so you can just type it into a text file or an email.
 
(SCO Unix)I need to remotely assist a customer; what can I do?  by (various)
- I need to remotely assist a sco unix customer; what can I do?
 
(SCO Unix)Is it possible to switch screen from an application?  by (various)
- (SCO Unix) Is it possible to switch screen from an application?
 
(SCO Unix)Are there any Winzip compatible tools?  by (various)
- This is an old article about compression tools SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I can't access my Windows 9x FAT32 partition from the SCO's one!  by (various)
- Accessing Windows FAT32 filesystems with old SCO Unix systems (install mtool if you can still find it).
 
(SCO Unix)Are there any 'Office'-like packages for SCO?  by (various)
- This is an old article about SCO Unix office suite software and is only left here for historical purposes.
 
(SCO Unix)How can I back up to a tape drive on another machine?  by (various)
- (SCO Unix) How can I back up to a tape drive on another machine?
 
(SCO Unix)How do I add a Zip or Jaz drive?  by (various)
- This is an old article about Zip/Jaz drives on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Where can I get older versions of SCO products?  by (various)
- This is an old article about obtaining old versions of SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How can I increase the number of characters that are significant in passwords?  by (various)
- Two factors control passwords: the maximum length that a generated password can be, and how much of a password is significant.
 
(SCO Unix)How can I regularly and reliably transfer data  by (various)
- (SCO Unix) How can I regularly and reliably transfer data to a program running on another machine?
 
(SCO Unix)I see an error message on the console that starts with %Stp-0.  by (various)
- It would have caused less confusion if the driver announced its presence during boot so that it would show up with all the other hardware reported then.
 
(SCO Unix)Why do I get "Alarm Call" messages at startup boot or shutdown?  by (various)
- (SCO Unix) It is the failure of the script to complete in the allotted time that causes the alarm not to be shut off, and that's when you see "Alarm Call" on the screen.
 
(SCO Unix)How can I transfer SCO accounts (passwd information) to Linux? 
- If the SCO Unix passwd file has the encrypted password in its second field (in other words, the system isn't using /etc/shadow), then this simple script will work. Normally, however, the encrypted passwords will be in /etc/shadow. This needs a little more work.
 
(SCO Unix)I just upgraded to SCO Unix 3.2v4 but I still can't use long filenames  by (various)
- (SCO Unix) I just upgraded to SCO Unix 3.2v4 but I still can't use longfilenames
 
(SCO Unix)I've burned a CD but can't see long filenames when I mount it on SCO  by (various)
- (SCO Unix) I've burned a CD but can't see long filenames when I mountit o
 
(SCO Unix)I've forgotten or don't know the Internet Manager Password  by (various)
- (SCO Unix) I've forgotten or don't know the Internet Manager Password. If you have changed the password and forgotten it, there is a manual method of wiping it out detailed at TA 105269
 
(SCO Unix)How can I find out what a user's password is  by (various)
- How can I find out what a user's password is? You can't, and you don't need to. You can't because the password is not stored anywhere. What is stored is a "hash" created by using the "crypt" function on the password. You could use a password cracking program to find a password that would work, but that is not necessarily the same password the user was using; it's just a word that hashes the same way.
 
(SCO Unix)How can inactive users be automatically logged out?  by (various)
- (SCO Unix) How can inactive users be automatically logged out?
 
(SCO Unix)How can I control the sound of the console bell or turn on keyclicks?  by (various)
- (SCO Unix) How can I control the sound of the console bell or turn onkeyc
 
(SCO Unix)How can I write an image diskette from a Windows OS?  by (various)
- (SCO Unix) Diskette images are not DOS filesystems and are too large to fit on a DOS formatted floppy. You need the RAWRITE utility.
 
(SCO Unix)I licensed an additional CPU but the system doesn't see it or use it.  by (various)
- (SCO Unix) You need to actually install the SMP software. It's on your original installation CD, the same one you installed the OS from. Stick that back in, run "custom" and find it on there.
 
(SCO Unix)Where can I get information about how to control or program the scoansi console?  by (various)
- (SCO Unix) Where can I get information about how to control or programthe
 
(SCO Unix)I've downloaded a driver.dd or driver.img file, what do I do with it?  by (various)
- (SCO Unix) I've downloaded a driver.dd or driver.img file, what do I dowi
 
(SCO Unix)When a new user tries to login, it says the account is disabled- but it is not.  by (various)
- (SCO Unix) When a new user tries to login, it says the account is disabled
 
(SCO Unix)I have a modem directly connected to a WY-60 terminal  by (various)
- (SCO Unix) I have a modem directly connected to a WY-60 terminal, but I don't get any display of AT commands on the screen.
 
(SCO Unix)I have one application that doesn't work with "scoansi"; how can I fix that? 
- (SCO Unix) I have one application that doesn't work with 'scoansi'; how can I fix that? scooansi-new and 'mkdev sconsi', filepro termcap 5.0.6 and 5.0.7
 
(SCO Unix)Does Openserver support USB devices?  by (various)
- USB support in SCO Unix never is very good, but there is some in 5.0.6 amd 5.0.7.
 
(SCO Unix)How can I get the value of autotuned configuration variables?  by (various)
- (SCO Unix) How can I get the value of autotuned configurationvariables?
 
(SCO Unix)How can I install a new disk controller that requires a different driver?  by (various)
- (SCO Unix) How can I install a new disk controller that requires adiffere
 
(SCO Unix)Why does my Compaq with an HP tape give "NOTICE: cha: SCSI bus has been reset ha=0 " messages?  by (various)
- This is an old article about HP Tape drives on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What consumes a user license? What uses do I need to buy more licenses for?  by (various)
- This is an old article about license consumption on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I need to transfer a hard drive to another machine as a secondary  by (various)
- This article is oriented toward SCO Unix. Some of it is applicable to Linux, but the main focus is SCO.
 
(SCO Unix)What are the symptoms of a drive geometry problem?  by (various)
- (SCO Unix) What are the symptoms of a drive geometry problem?
 
(SCO Unix)How do I learn the drive geometry of an old drive?  by (various)
- (SCO Unix) How do I learn the drive geometry of an old drive?
 
(SCO Unix)How can I tell if a user logged in locally, used rlogin, telnet or ssh?  by (various)
- (SCO Unix) You can use the concept here to back trace any process. This script will find the first ancestor process after init. This would be sshd or telnet or just a getty, etc.
 
(SCO Unix)When applying multiple SLS's  by (various)
- (This is an ancient post with no relevance to modern systems) Ordinarily installing the patches without rebooting will cause no problem. However, at the very least you should do a btmnt -w and make an extra copy of unix.old at each relinking step. If everything goes well, you can come back and remove the extra kernels later.
 
(SCO Unix)I ssh to a Linux box and am immediately disconnected  by (various)
- This is probably just the Linux sshd being fussy about your TERM setting. Try "export TERM=ansi" before the ssh.
 
(SCO Unix)I can't find certified hardware for version X  by (various)
- This is an old article about SCO Unix hardware and is only left here for historical purposes.
 
(SCO Unix)How can I run different consoles in single-user mode so that Alt+Fx works?  by (various)
- You can go to init state 4 by doing "init 4". This leaves all of the consolettys enabled for login, while not running the rc2 scripts that start up remote services. Note that after the init state transition you won't be logged in anywhere; you will need to log in on each screen that you want to use
 
(SCO Unix)How can I prevent a certain tty from being used?  by (various)
- This is an old article concerning SCO Unix tty usage and is only left here for historical purposes.
 
(SCO Unix)Graphical characters don't work  by (various)
- This is an old article about terminal emulation and graphics on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)sar doesn't work  by (various)
- This is an old article about sar on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)My emergency floppies don't have enough inodes  by (various)
- This is an old article about creating emergency boot disks for SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I'm having trouble with licensing and registration  by (various)
- (SCO Unix) I'm having trouble with licensing and registration
 
(SCO Unix)sysadmsh is missing  by (various)
- This is an old article about SCO Unix sysadmsh and is only left here for historical purposes.
 
(SCO Unix)Will Release 5 run my older binaries?  by (various)
- This is an old article about SCO Unix binary compatibility and is only left here for historical purposes.
 
(SCO Unix)I loaded a patch but it didn't take effect  by (various)
- This is an old article about patches for SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What patches should I use?  by (various)
- This is an old article about SCO Unix patches and is only left here for historical purposes.
 
(SCO Unix)What patches are on my system?  by (various)
- This is an old article about showing applied patches on SCO Unix and is only left here for historical purposes.
 
What's this free copy of SCO Unix I keep hearing about?  by (various)
- What's this free copy of SCO Unix I keep hearing about?
 
(SCO Unix)I'm having trouble using my ATAPI CD-ROM  by (various)
- This is an old article about ATAPI CD-ROM's on SCO Unix and is only left here for historical purposes. The two most common problems are that your "IDE" CD-ROM drive may not follow the ATAPI spec, or that you are unsure of what parameters to enter when asked for the configuration of your drive.
 
(SCO Unix)My floppy drive doesn't work reliably  by (various)
- This is an old article about floppy drive reliability on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)People log out but still show up in who  by (various)
- (SCO Unix) Clearing stale login information from utmp using 'cwtmp' Ghost logins appearing in 'w' and 'who' come from these entries.
 
(SCO Unix)How do I access online documentation from a browser?  by (various)
- (SCO Unix) How do I access online documentation from a browser?
 
(SCO Unix)Can I use the scohelp server as a Web server?  by (various)
- This is an old article about SCO Unix's 'scohelp' browser and is only left here for historical purposes.
 
(SCO Unix)Is there a packet sniffer (tcpdump) available?  by (various)
- SCO Unix FAQ: Is there a packet sniffer (tcpdump) available? (SCO Unix)
 
(SCO Unix)Can I have both IDE and SCSI Drives?  by (various)
- (SCO Unix) Mixing SCSI and IDE drives could be a problem on old sysems if you wanted the boot disk to be scsi.
 
(SCO Unix)Is a DHCP client available?  by (various)
- This is an old article about DHCP on older SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Can SCO_OSR5 do NAT or IP filtering (function as a firewall)?  by (various)
- Can OSR5 do NAT or ip filtering (function as a firewall)? Yes, with "ipfilter"- it's built into 5.0.6 and is available as a supplement for 5.0.4 and 5.0.5- TLS709 ftp://stage.caldera.com/TLS/.
 
(SCO Unix)Can SCO_OSR5 and Unixware run Linux binaries?  by (various)
- This is an old article about running Linux binaries on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Can Linux run SCO binaries?  by (various)
- This is an old article about running SCO Unix binaries under Linux and is only left here for historical purposes.
 
(SCO Unix)A Xenix or ODT legacy application corrupts the screen  by (various)
- (SCO Unix) Run it through 'cat -" and see also the "mapchan" entry.
 
(SCO Unix)I've added more RAM, do I need more swap?  by (various)
- This is an old article about swap usage and ram on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Why do I get "dynamic linker" errors or load failures?  by (various)
- This is an old article about SCO Unix dynamic linker errors and is only left here for historical purposes.
 
(SCO Unix)Why do I get "cronsched: no response from server" messages ?  by (various)
- (SCO Unix) Why do I get cronsched: no response from server messages?
 
(SCO Unix)How do I change the system's name or IP address?  by (various)
- This is an old article about changing the system nane on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What does "ifor_pmd, failed to initialize policy manager" mean?  by (various)
- (SCO Unix) What does ifor_pmd, failed to initialize policy manager mean?
 
(SCO Unix)Does SCO OpenServer5 support the 'undelete' feature? (file system versioning)  by (various)
- Does SCO Unix OpenServer5 support the 'undelete' feature? (filesyst
 
(SCO Unix)Why do I have to relink after just changing an ip address?  by (various)
- (SCO Unix) Why do I have to relink after just changing an ipaddress?
 
(SCO Unix)How Can I stop OpenServer 5.0.6 creating /usr/local as a sym-link?  by (various)
- (SCO Unix) How Can I stop OpenServer 5.0.6 creating /usr/local as a sym-link?
 
(SCO Unix)Is it possible to have more than one instance of custom running ?  by (various)
- (SCO Unix) Is it possible to have more than one instance of customrunning
 
(SCO Unix)I need information from "last", but most of it is gone!  by (various)
- If your machine is used at the time this script is run, you will want to change the time in crontab. If you want more than 1 week's information in these files, you need to change its frequency or take it out all together.
 
(SCO Unix)Why doesn't "man" work?  by (various)
- This is an old article about 'man' on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I need to make a copy of /stand/unix, but the file system is mounted read-only!  by (various)
- (SCO Unix) I need to make a copy of /stand/unix, but the file system ismo
 
(SCO Unix)Why can't I schedule a backup in Arcserve Open Light ( the buttons are greyed out ) ?  by (various)
- (SCO Unix) Why can't I schedule a backup in Arcserve Open Light ( thebutt
 
(SCO Unix)I installed gcc from Skunkware, but it doesn't work.  by (various)
- CO Unix had two compiler options. The first as their "native" compiler, which required a purchased license. The other was GCC, which was free.
 
(SCO Unix)Where can I get a Linux terminfo for "scoansi"? or a SCO terminfo/termcap for Linux  by (various)
- If coming from SCO to Linux, you may find a scoansi-old and scoansi-new terminfo definition. Which one you would use depends upon whether you have "old" sco (pre 5.0.6) or not.
 
(SCO Unix)How can I make Windows machines use unencrypted (plain text) passwords?  by (various)
- (SCO Unix) How can I make Windows machines use unencrypted (plain text) passwords?
 
(SCO Unix)Can Unixware 7 programs run on SCO_OSR5?   by (various)
- This is an old article about SCO Unix running Unixware binaries and is only left here for historical purposes.
 
(SCO Unix)Why do I have files with "#" as part of the name?  by (various)
- This is an old article about SCO Unix files ending in "#" and is only left here for historical purposes.
 
(SCO Unix)How can I display PDF files from Netscape?  by (various)
- This is an old article about seeing PDF's in SCO Unix Netscape and is only left here for historical purposes.
 
(SCO Unix)How do I get rid of that "Unregistered Software" message?  by (various)
- This is an old article about registering SCO Unix software and is only left here for historical purposes.
 
(SCO Unix)I am using the SCO_OSR5 ipnat, but ftp only works in passive mode.  by (various)
- (SCO Unix) I am using the OSR5 ipnat, but ftp only works in passivemode.
 
(SCO Unix)I can't read a cpio archive created on a Linux box- it fails with "premature end of file"   by (various)
- (SCO Unix) I can't read a cpio archive created on a Linux box
 
(SCO Unix)I have a system memory dump in my swap space; how do I delete it?  by (various)
- (Old SCO Unix) My sysyem had a Panic crash and now I have a system memory dump in my swap space; how do I delete it?
 
(SCO Unix)How do I save kernel panic dumps to tape?  by (various)
- (SCO Unix) Edit the /etc/dumpsave file to make it put the panic dump where you want it to go.
 
(SCO Unix)At boot time, the "Enter the root password or ^D" message doesn't work!  by (various)
- If this message stair-steps across your screen and you can't do a ^D, the file /etc/ioctl.syscon has become corrupt.
 
(SCO Unix)My pre-EAFS filesystem gives errors on filenames greater than 14 chars  by (various)
- (SCO Unix) My pre-EAFS filesystem gives errors on filenames greater than 1
 
(SCO Unix)The permissions on /usr/adm/sa and its children are wrong  by (various)
- (SCO Unix) The permissions on /usr/adm/sa and its children arewrong
 
(SCO Unix)I get an error "Cannot obtain database information on this terminal"  by (various)
- (SCO Unix) This error can be caused for various reasons. First, determine the cause of the problem and implement a solution. Then install all required SLSes according to the following paragraph, derived from TA 440249.
 
(SCO Unix)I need help configuring MMDF  by (various)
- This is an old article about MMDF on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What is the new "low" security level in 3.2v4?  by (various)
- This does not eliminate TCB. It uses TCB to lower security even beyond that of traditional Unix security. Nobody should use this.
 
(SCO Unix)How do I get MMDF to send one copy of a message to many people?  by (various)
- (SCO Unix) How do I get MMDF to send one copy of a message to manypeople?
 
(SCO Unix)My system is slow or hangs when sizing memory  by (various)
- This is an old article about memory caching on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)My system doesn't recognize files starting with #!  by (various)
- (SCO Unix) My system doesn't recognize files starting with #!
 
(SCO Unix)Where do I get POP binaries?  by (various)
- This is an old article about POP binaries for SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I fix a kernel panic trap 0x00000006?  by (various)
- This is due to executing an invalid instruction in kernel mode (trap 6 is for an invalid instruction; a user process which does this will simply die with a core dump). If your particular problem is a double panic and it doesn't leave a system memory dump in whatever device you've chosen for dumps (usually /dev/swap), apply the following patch.
 
(SCO Unix)How do I change my SCSI host adapter?  by (various)
- Replacing a scsi controller with a differen brand or model on SCO Unix systems. Details of kernel link files needed
 
(SCO Unix)My machine had a panic. How do I find out why?  by (various)
- This is an old article about determining the cause of SCO Unix kernel panics and is only left here for historical purposes.
 
(SCO Unix)My keyboard locks up  by (various)
- This is an old article about Pentium bugs in oldder SCO Unix and is only left here for historical purposes.
 
(SCO Unix)My machine locks up at boot time  by (various)
- This is an old article about SCO Unix boot lockups and is only left here for historical purposes.
 
(SCO Unix)How much RAM can my system use?  by (various)
- This is an old article about maximum ram on old versions of SCO Unix and is only left here for historical purposes.
 
Setup resolv.conf SCO Unix  by (various)
- Different systems have slightly different syntax for resolv.conf - this is for SCO Unix 3.2v4 and 5 and may not work elsewhere.
 
(SCO Unix)How do I know if I have enough streams buffers for TCP/IP and/or NFS?  by (various)
- (SCO Unix) How do I know if I have enough streams buffers for TCP/IP and/or NFS? What about Out of stream resources messages?
 
(SCO Unix)TCP/IP gives messages like "Notice: TCP SUM: SRC 89270107 SUM 0000D7AD"  by (various)
- This simply means that TCP detected a checksum error in a packet. TCP is a reliable protocol and will automatically request that the packet be re-sent.
 
(SCO Unix)How do I get /etc/issue to print for telnet sessions?  by (various)
- (SCO Unix) Basically, you will need to create a file (we'll call it /etc/telbanner), owned by bin/bin and readable by everyone, with the message to be printed. Next, create the following shell script and call it /etc/telbannerd:
 
(SCO Unix)What does "WARNING: tcp_deqdata" mean?  by (various)
- This is an old article about 'WARNING: tcp_deqdata' on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Dial in PPP disconnects immediately  by (various)
- This is an old article about SCO Unix PPP disconnection and is only left here for historical purposes.
 
(SCO Unix)How do I test a popd mail connection?  by (various)
- (SCO Unix) Testing a POP3 connection with telnet: If the server does not respond, then pop is not enabled
 
(SCO Unix)What do "can't get passwd for local host" messages in syslog mean?  by (various)
- (SCO Unix) What do "can't get passwd for local host" messages in syslogme
 
(SCO Unix)Why do I have collisions in "netstat -i" ?  by (various)
- (SCO Unix) This is an old article (before ethernet switches) and is only left here for historical purposes.
 
(SCO Unix)How do I configure Windows Dial Up Networking (DUNS)?  by (various)
- Windows DUN didn't like to play well with SCO Unix PPP. It did not know how to handle login and password prompts from UNIX servers.
 
(SCO Unix)Why does this "224" route show up in netstat -r? What's this 127 address?  by (various)
- (SCO Unix) Why does this "224" route show up in netstat -r? The 224 network is the "multicast" network. It's the network used for broadcasting the same content to multiple machines anywhere in the world.
 
(SCO Unix)How do I secure services on a SCO system?  by (various)
- (SCO Unix) Probably the best answer is to migrate its apps to Linux, but, failing that.. First, consider that production machines should never be firewalls. Two important functions like that should be on separate machines. However, you shouldn't just depend on a firewall either; each internal machine should be at least reasonably secured by shutting off unnecessary services etc.
 
(SCO Unix)What is "port knocking"?  by (various)
- (SCO Unix) packets addressed to certain ports are silently ignored but are logged
 
(SCO Unix)Why do I have a license for Morning Star PPP and how do I use it (SCO_OSR507)?  by (various)
- (SCO Unix) Why do I have a license for Morning Star PPP and how do Iuse i
 
(SCO Unix)Why does syslog fill up with "#2 open of pid file failed: No such file or directory" messages ?  by (various)
- (SCO Unix) Syslog fils with "No such file or directory" messages
 
(SCO Unix)comp.unix.sco Technical FAQ 5/9  by (various)
- Questions and Answers about Serial Communications and UUCP on older SCO Unix. Generally not useful on modern systems.
 
(SCO Unix)My serial connections are losing characters  by (various)
- First, check the NCLIST kernel parameter. This governs how many CLIST structures are allocated; these are used to buffer input and output. If this is too low, then at times of high serial I/O demands, your system will run out of CLIST structures and start discarding characters. Note that there is a limit as to how many CLIST structures may be allocated to an individual process, regardless of how many are available systemwide. This is done to prevent one misbehaving program from monopolizing all of the CLIST structures. Look for the tunable parameter TTHOG (only available in newer Unix systems), which controls this limit.
 
(SCO Unix)How do I adjust my 16550's trigger level?  by (various)
- This is an old article about RS232 drivers in SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I can transfer small files via UUCP but large ones won't go  by (various)
- This may indicate a flow control problem. uucico, the program that actually performs UUCP transfers, turns off all hardware and software flow control on the port it is using.
 
(SCO Unix)How do I get better UUCP throughput?  by (various)
- This is an old article about UUCP throughput on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I change uucico's window size?  by (various)
- This is an old article about SCO Unix uucp and is only left here for historical purposes.
 
(SCO Unix)I increased my window size but nothing changed  by (various)
- This is an old article about uucp window sizing in SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I increased my window size and UUCP broke!  by (various)
- (SCO Unix) If your modem, or the modem on a remote site, has small data buffers, a large window size may cause the modem's buffers to overrun. If the site that broke polls your system, you may wish to create a separate copy of uucico with a smaller window size, and specify it as the login shell in /etc/passwd.
 
(SCO Unix)UUCP frequently has to resend packets  by (various)
- This is an old article about UUCP errors on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I change uucico's packet timeout?  by (various)
- This is an old article about uucico's packet timeout on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What special considerations are there regarding my Telebit modem?  by (various)
- (SCO Unix) This is an old article about Telebit modems and is only left here for historical purposes.
 
(SCO Unix)What are all the V.something codes, MNP, HST, etc.?  by (various)
- (SCO Unix) What are all the V.something codes, MNP, HST, etc.?
 
(SCO Unix)How do I maximize serial throughput?  by (various)
- This is an old article about serial throughput on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)My data-compressing modem doesn't work much faster than my old modem  by (various)
- (SCO Unix) My data-compressing modem doesn't work much faster than myold
 
(SCO Unix)A BSD-based machine can't connect to mine via UUCP  by (various)
- (SCO Unix) A BSD-based machine can't connect to mine via UUCP
 
(SCO Unix)Where can I get more information on UUCP protocols?  by (various)
- (SCO Unix) Where can I get more information on UUCP protocols?
 
(SCO Unix)I edited my gettydefs and things broke  by (various)
- (SCO Unix) You can check gettydefs using /etc/getty -c /etc/gettydefs; this command will print out everything you could possibly want to know.
 
(SCO Unix)I can't get shared dial-in and dial-out working  by (various)
- (SCO Unix) Here are a few things to keep in mind. Under Unix, the entries in /etc/inittab and /usr/lib/uucp/Devices must match exactly; if one says "ttyi3" while the other says "/dev/ttyi3", getty won't consider them to be the same port, and your modem will not be sent the undialer string.
 
(SCO Unix)What are some common settings for my modem?  by (various)
- (SCO Unix) This is an old article about serial dial-up modems and is only left here for historical purposes.
 
(SCO Unix)Will a Winmodem work?  by (various)
- No. It requires software drivers that aren't available (though SOME Winmodems can be made to work on Linux systems with special modules).
 
(SCO Unix)Why can't I get my dialin modem to work above 9600 baud?  by (various)
- Because you need the modem speed in /etc/inittab to match the DTE rate that the modem is set for. If the DTE rate is fixed, the modem can connect with another modem at any speed. See /Unixart/hispeed.htmli for a full description of how to do this, but the overall picture is this:
 
(SCO Unix)I've set the modem for 38400 in inittab, but stty shows it at some other speed  by (various)
- Configuring modems for uucp on SCO Unix: You have a line in /usr/lib/uucp/Devices that references that modem line at some other speed, and the getty program is looking at that.
 
(SCO Unix)Which Interface script do I use?  by (various)
- This is an old article about choosing SCO Unix System V printer interface scripts and is only left here for historical purposes.
 
(SCO Unix)Print jobs fail, and I get mail complaining "tcgetattr failed: No such device"  by (various)
- (SCO Unix) tcgetattr failed: No such device or inappropriate I/O control operation
 
(SCO Unix)Why does printed output garble or stop after several pages?  by (various)
- (SCO Unix) Why does printed output garble or stop after severalpages?
 
(SCO Unix)Why do I lose the last few lines of my print job?  by (various)
- This is an old article about SCO Unix SysV printing issues and is only left here for historical purposes.
 
(SCO Unix)Large print jobs fail on remote printers  by (various)
- This is an old article about printcap on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What are the escape sequences to select the trays on my HP printer?  by (various)
- Back before the dinosaurs died, printers came with manuals that had all this stuff in them. No more.. here are a few unusual codes.
 
(SCO Unix)How can I print from Netscape without a Postscript printer? 
- Ancient SCO Unix shipped Netscape only capable of printing to Postscript. Here was how to get around that.
 
(SCO Unix)How can I make a device that will print to a network printer or send email?  by Anthony Lawrence
- (SCO Unix) How can I make a device that will print to a network printer?
 
(SCO Unix)How do I stop extra form feeds that spit out blank pages?  by (various)
- (SCO Unix) How do I stop extra form feeds that spit out blankpages?
 
(SCO Unix)How do I make a printer send a form feed at the end of the job?  by (various)
- (SCO Unix) How do I make a printer send a form feed at the end of the job?
 
(SCO Unix)How can different users have different default printers?  by (various)
- (SCO Unix) Sometimes you want a person's default printer to be different than someone else's (the default printer is the one that gets used when no destination is specified).
 
(SCO Unix)How do I stop staircase output on the printer? 
- (SCO Unix) How to staircase output on the printer (including Sys V printer interface scripts)
 
(SCO Unix)Can I use "Windows" printers?  by (various)
- This is an old article about Windows printing from SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Mixing Synchronics and Realworld or other mixed marriages  by (various)
- (SCO Unix) Sometimes mixing more than one program causes printer grief because one program adds form feeds to its reports and the other does not, so you have a nasty problem. It's usually not all that hard to fix, though; here's what I did for one customer with that problem:
 
(SCO Unix)Some print jobs from my application fail mysteriously.  by (various)
- (SCO Unix) Some print jobs from my application failmysteriously.
 
(SCO Unix)How do I use a printer that's shared on a Windows network?  by (various)
- (SCO Unix) Using visionfs to share Unix prinyers with Windows users. Curently, I don't know where you can get the latest version of Visionfs : the link below used to work but probably does not now.
 
(SCO Unix)How do I use a printer that's attached to an NT server?  by (various)
- (SCO Unix) You can use Visionfs (other articles here explain how) or configure the NT machine to act as an LPD server. NT needs the TCP/IP Printing Service installed, and the service needs to be running (you probably want to set it for Automatic in Services).
 
(SCO Unix)Why does my HP printer start each new page further down?  by (various)
- (SCO Unix) Why does my HP printer start each new page furtherdown?
 
(SCO Unix)How can I send change defaults permanently?  by (various)
- (SCO Unix) How can I send change defaults permanently; for example makea
 
(SCO Unix)comp.unix.sco Technical FAQ 8/9 
- Questions and Answers about X and the GUI (Graphical User Interface) on older SCO Unix
 
(SCO Unix)My X screen is completely unreadable and I cannot exit 
- (SCO Unix) You may need nothing more than "^Jreset^J" to resore sanity to your screen.
 
(SCO Unix)I can't use the GUI because the mouse doesn't work!  by (various)
- (SCO Unix) I can't use the GUI because the mouse doesn't work!
 
(SCO Unix)I'm stuck in the GUI!   by (various)
- (SCO Unix) I'm stuck in the GUI! When you are using a GUI screen, you need to hold CTRL and ALT, and then press a function key.
 
(SCO Unix)I can login with Scologin, but the GUI doesn't work after that  by (various)
- (SCO Unix) I can login with Scologin, but the GUI doesn't work afterthat
 
(SCO Unix)Netscape doesn't work, parts of it are off the screen, I can't use it.  by (various)
- (SCO Unix) Netscape doesn't work, parts of it are off the screen, Ican't
 
(SCO Unix)I can't tell when Netscape is starting up!  by (various)
- Fixing a startup issue with old netscape on old sco unix by changing the 'activated' icons.
 
(SCO Unix)Why is Netscape old?  by (various)
- This is an old article about Netscape on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I prevent the Scologin screen from starting at boot ?  by (various)
- (SCO Unix) I only need character based login. How do I prevent the graphical Scologin screen from starting at boot?
 
(SCO Unix)What is the pmwm (panner) Window manager?  by (various)
- Down in the left corner of your SCO Unix GUI is a set of boxes marked "SCO Panner". Good luck trying to find a man page on this, and it won't help you a bit to know that /usr/bin/X11/pmwm is the binary, or that SCO calls this "SCO Panorama"
 
(SCO Unix)I can't login in with Scologin; my shell is bash or tcsh  by (various)
- (SCO Unix) Adding shells to /usr/lib/X11/scologin. You need to create one for your shell. These are very simple files that just set some environment variables and test for a fail-safe login, so you can usually just copy something similar. To use bash, for example, you could copy Xsession-sh to Xsession-bash.
 
(SCO Unix)comp.unix.sco Technical FAQ 9/9  by (various)
- Questions and Answers about Installation and upgrades of older SCO Unix (SCO Unix)
 
(SCO Unix)Does SCO support my hardware?  by (various)
- This is an old article about SCO Unix hardware selection and is only left here for historical purposes.
 
(SCO Unix)Can I perform an in-place upgrade?  by (various)
- This is an old article about SCO Unix version upgrades and is only left here for historical purposes.
 
(SCO Unix)I can't finish my SCO install because the GUI doesn't work  by (various)
- I can't finish my SCO Unix install because the GUI doesn'twork
 
(SCO Unix)What does "interupt is private" mean ?  by (various)
- (SCO Unix) An "interrupt is private" message means that you have an interrupt conflict on something critical- usually your controller. If this isn't a new install, it's probably because you removed some device and that caused the BIOS to reassign the interupts, creating a conflict. The solution is to go into the BIOS and tell it NOT to use that interrupt for Plug and Play/PCI devices. Hopefully that will get you back to where you were.
 
(SCO Unix)My >2GB ATA hard drive doesn't work with SCO_OSR5  by (various)
- This is an old article about ATA drives on older SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How can I recreate my install floppy?  by (various)
- This is an old article about SCO Unix installation floppies and is only left here for historical purposes.
 
(SCO Unix)What is the procedure for performing replicated OS5 installs ?  by (various)
- (SCO Unix) What is the procedure for performing replicated OS5 installs?
 
(SCO Unix)How can I access the documentation on the install?  by (various)
- (SCO Unix) How can I access the documentation on the install CD if Idon't
 
(SCO Unix)Why does the installation bomb out with a "Signal 8" error ?  by (various)
- (SCO Unix) Why does the installation bomb out with a "Signal 8" error?
 
(SCO Unix)Do modern versions of SCO support IDE UDMA controllers?  by (various)
- The 5.0.6 release of SCO Unix adds support for UDMA. Ironically, adding that support may cause you to have problems installing 5.0.6 on machines that installed easily with previous releases.
 
(SCO Unix)My AHA154x/174x isn't being detected  by (various)
- The major issue with SCSI and SCO Unix was always drivers. SCO didn't create the drivers; that was up to the SCSI adapter manufacturer and of course as SCO sales declined, those folks were less interested in writing the drivers and if they did, certainly didn't want to spend much time in testing.
 
(SCO Unix)How do I upgrade from an n-user licence?  by (various)
- This is an old article about license upgrades on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I configure an EIDE drive to work on 3.2v4.x?  by (various)
- (SCO Unix) How do I configure an EIDE drive to work on 3.2v4.x?
 
(SCO Unix)How do I find out the names of BTLDs on a BTLD diskette?  by (various)
- (SCO Unix) Boot from your boot diskette. At the Boot: prompt, insert the BTLD floppy and type dir. Some of the names you see are BTLDs, and some may not be
 
(SCO Unix)How can I boot multiple operating systems?  by (various)
- Your SCO Unix system includes the ability to boot Unix/Xenix or other operating systems; see the man page for boot. This is enough in most, though certainly not all, cases.
 
(SCO Unix)How do I install a BTLD on a running system?  by (various)
- (SCO Unix) How do I install a BTLD on a running system? Mount the floppy and run "btldinstall":
 
(SCO Unix)What SCSI adaptors are supported?  by (various)
- Support for modern scsi adaptors may be very limited on older SCO Unix. Choosing SATA is often an easier path.
 
(SCO Unix)Why do I get "vhand spinning" ?  by Bela Lubkin
- This is an old article about a "vhand spinning" error on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Where do I get zmodem?  by (various)
- zmodem is an old file transfer protocol. This is an old article about SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Why didn't my machine change time for daylight savings time (or any time change)?  by (various)
- (SCO Unix) Why didn't my machine change time for daylight savings time(or
 
(SCO Unix)How do I find out who or what shutdown or halted my system?  by (various)
- (SCO Unix) How do I find out who or what shutdown or halted mysystem?
 
(SCO Unix)How do I stop a print job and restart it from the beginning?  by (various)
- (SCO Unix) How do I stop a print job and restart it from thebeginning?
 
(SCO Unix)My printer faults and prints same document over and over  by (various)
- (SCO Unix) My printer faults and prints same document over andover
 
(SCO Unix)I get an error message "Can't access shared library"  by (various)
- This is an old article about a shared library error on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I am trying to configure 30 GB or larger Hard Disk.   by (various)
- (SCO Unix) I am trying to configure 30 GB or larger Hard Disk. Afterboot
 
(SCO Unix)How do I solve an "arglist too long"?  by (various)
- Wildcard expansion (globbing) is performed by the shell. There is a limit of 5120 bytes (5k) for the environment and command line arguments put together, in all versions of SCO Xenix and SCO Unix versions prior to OpenServer 5; more on OSR5 later.
 
(SCO Unix)When a user tries to log in, they get "Account is disabled -- see Account Administrator"  by (various)
- (SCO Unix) When a user tries to log in, they get "Account is disabled-- s
 
(SCO Unix)Why do I see "ttloop : peer died" in syslog?  by (various)
- (SCO Unix) If you are seeing a lot of these, it may be because someone is scanning your machine looking for open ports. This is an example:
 
(SCO Unix)Is tar/cpio a good backup program?  by (various)
- tar is not; cpio is, to some degree. tar will not back up things like device nodes (and, prior to OpenServer Release 5, it will also not back up empty directories), so a tar backup will not catch anything in /dev, for example, and you will find your device nodes missing when you do your restore. cpio will catch these things.
 
(SCO Unix)User login hangs for many seconds before password prompt comes up   by (various)
- (SCO Unix) User login hangs can be caused by reverse DNS lookups - this is true for Unix, Linux and Windows.
 
(SCO Unix)What does "Error 5" mean (or any "Error xx") ?  by (various)
- (SCO Unix) If that error came from an application program, you will have to ask whoever wrote the program.a However, system errors are very much standard across Unix/Linux systems.
 
(SCO Unix)What causes "No utmp entry, must login from lowest level shell?"  by (various)
- (SCO Unix) What causes "No utmp entry, must login from lowest levelshell?
 
(SCO Unix)How can I get pci bus information?  by (various)
- This is an old article about reading PCI information SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I format a floppy diskette?  by (various)
- This is an old article about formatting floppy disks on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Killall doesn't work!  by (various)
- Killall doesn't work! Well, actually it does- it's just a very different command
 
(SCO Unix)Can I change root's shell to something else?  by (various)
- This is an old article about changing root's login shell on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Why do I get mail saying my message had too many hops?  by (various)
- (SCO Unix) The problem described here occured because mail did hop from machine to machine (uucp modems) many more times than it is likely to now, and it was not unusual to be confused as to the right path to take.
 
(SCO Unix)Technical FAQ 4 of 9  by (various)
- This is the old SCO Unix tcp/ip FAQ. Some of it is still applicable to modern systems but much of it is SCO specific.
 
(SCO Unix)What can I do about function keys not working?  by (various)
- This is an old article about function keys on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How do I repair a drive geometry problem?  by (various)
- (SCO Unix) The Unix "stamp" appears on the masterboot sector and should not, as far as I can determine, _ever_ get corrupted by anything you do in BIOS setup
 
(SCO Unix)Technical FAQ 6 of 9  by (various)
- Questions and Answers Common to SCO Unix, Xenix and ODT
 
(SCO Unix)How can I force the speed and duplex settings of my NIC (or check what it is now)?  by (various)
- This is an old article about determining or changing NIC link speed on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)I have a bad block on my hard drive  by (various)
- This is an old article about SCO Unix hard drive bad blocks (badtrk) and is only left here for historical purposes.
 
(SCO Unix)Where can I get ssh?  by (various)
- This is an old article about obtaining ssh amd other code for older SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Is my system Year 2000 compliant?  by (various)
- This is an old article about Y2K on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)What is a virtual printer?  by (various)
- (SCO Unix) This is how you do "virtual" printers: many names all going to the same print device, but all with diferent options.
 
(SCO Unix)How can I get the file from the print spooler before it prints?  by (various)
- (SCO Unix) How can I get the file from the print spooler before it prints?
 
(SCO Unix)How can I reconnect to a disconnected session?  by (various)
- Whether it's a modem a vpn that drops, or just accidentally closing a Windows emulator, sometimes you lose your connection. Users get kicked out, and that screws up their software.
 
(SCO Unix)What are interrupts?  by (various)
- (SCO Unix) A device uses interupts to tell the CPU that it is done doing something and is ready for more, or when it receives data that the CPU needs to process.
 
(SCO Unix)How do I stop banners from printing?  by (various)
- (SCO Unix) Note that there are some Unix printer interface scripts which do not use /etc/default/lpd, and you must use an option to these to disable banners. Also, some Unix printer interface scripts expect the Xenix syntax above. Aren't standards wonderful?
 
(SCO Unix)What do the terms UART, 8250, 16450 and 16550 mean?  by (various)
- (SCO Unix) UART means Universal Asynchronous Receiver/Transmitter. This is a chip which receives and transmits data serially; each serial port you have will use one, though it is possible that several may be integrated into one chip.
 
(SCO Unix)I see in netstat that processes get stuck in TIME_WAIT   by (various)
- (SCO Unix) For some reason, OpenServer sets TIME_WAIT to 30 minutes even while stating that the recommended setting is 4 minutes!
 
(SCO Unix)How can I find my Activation Key? ( license data serial number activation key )  by (various)
- (SCO Unix) How can I find my Activation Key? ( license data serialnumber
 
(SCO Unix)How do I find out serial numbers of my various components?  by (various)
- How do I find out serial numbers of my various components? (SCO Unix)
 
(SCO Unix)What are printer interface scripts? 
- (SCO Unix) What are System V printer interface scripts? Note: these are for SysV printing - CUPS doesn't normally use these.
 
(SCO Unix)How can I make a shell script setuid?  by (various)
- Setuid shell scripts can be a major security hole, so that is not allowed by the SCO Unix kernel.
 
(SCO Unix)Technical FAQ 7 of 9  by (various)
- Questions and Answers Related to Printing (mostly SCO OSR5, some Linux)
 
(SCO Unix)What graphics driver do I use for my video card?  by (various)
- This is an old article about SCO Unix video card drivers and is only left here for historical purposes.
 
(SCO Unix)Why do I get "portmapper is not responding" errors?  by (various)
- This is an old article about 'portmapper' errors on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)Technical FAQ 0 of 9  by (various)
- Originally a SCO Unix FAQ, I have updated this with Linux information and also included conversion help to move from SCO to Linux
 
(SCO Unix)Technical FAQ 2 of 9  by (various)
- Questions and Answers Specific to OpenServer Release 5
 
(SCO Unix)What causes a trap 0x00000008 ( double panic )?  by (various)
- Double Panic- the kernel panics while panicing. This is an old article about SCO Unix and is only left here for historical purposes.
 
(SCO Unix)My printer doesn't work at all!  by (various)
- (SCO Unix) The first test is whether or not you can print to the raw device
 
(SCO Unix)How much swap space do I need?  by (various)
- (SCO Unix) There are two factors to consider - how much you actually need for correct operation of your system, and how much you might need in case of a kernel panic.
 
(SCO Unix)How can I increase the size of my root or other filesystem?  by (various)
- (SCO Unix) How can I increase the size of my root or other filesystem?
 
(SCO Unix)Technical FAQ 1 of 9  by (various)
- Questions and Answers Common to Unix, Xenix and ODT (Some Linux)
 
(SCO Unix)I don't understand all this half/full duplex negotiation stuff  by (various)
- Typically you have a card connected to a 10/100 switch. If both devices are set to auto, and everything works as it should, then you end up with both devices set to 100 Mbs full duplex, which is the fastest possible connection (duplex means that the devices can "talk" in both directions at the same time).
 
(SCO Unix)How do I solve "fork failed no more processes"?  by (various)
- This is an old article about SCO Unix process table tuning and is only left here for historical purposes.
 
(SCO Unix)What are some terminal emulators I can use from windows? 
- (SCO Unix) Windows terminal emulators for telnet and ssh access to Unix servers.
 
(SCO Unix)How do I print man pages from the command line?  by (various)
- "man" formats the text with Ctrl-H backspaces and multiple letters to make bold text. Your printer probably will make a mess of it.
 
(SCO Unix)How can I download a boot disk?  by (various)
- (SCO Unix) How can I download a boot disk? Finding Boot Media for old SCO Unix systems (floppy boot disks)
 
(SCO Unix)Why do I get "can't open /dev/tty" errors?  by (various)
- This is an old article about 'can't open /dev/tty' errors on SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How can I tell what process has a network port in use?  by (various)
- How can I tell what process has a network port in use? The lsof tool is not just for network connections. It shows you detailed information about open files in general- not just network activity.
 
(SCO Unix)How can I mount a SCO file system in Linux or vice-versa?  by (various)
- (SCO Unix) Mounting sco fs in linux - not easy, but can be done
 
(SCO Unix)How can I monitor cpu usage?  by (various)
- (SCO Unix) This script is useful. (change "mawk" to "awk" if you don't have it- it still runs, just more slowly).
 
(SCO Unix)How do I make environment variables global?  by (various)
- (SCO Unix) Once the variable is exported, you can change it's value and do NOT have to export it again.
 
(SCO Unix)How do I mount a CDROM?  by (various)
- This is an old article about mounting a CDROM in SCO Unix and is only left here for historical purposes.
 
(SCO Unix)How can I restrict who can login with ssh?  by (various)
- We often have systems that have run for years with no connection to the outside world, and now suddenly an Internet connection is added and ssh access is set up. Unfortunately, many users have weak or even blank passwords. If only some users need to use ssh, it's best to set up new users with strong passwords and restrict ssh to only those users.
 
(SCO Unix)How to setup resolv.conf for DNS configuration 
- (SCO Unix) Reverse lookups (lookup name from ip) happen for every attempted connection. Edit the resolver file to get proper behavior and quicker connections. For Linux,that's /etc/host.conf; most other Unixes use /etc/resolv.conf
 
(SCO Unix)How can I change uppercase file names to lower case?  by (various)
- (SCO Unix) How can I change uppercase file names to lower case?
 
(SCO Unix)How do I install a HP Network Printer or Print Server?  by (various)
- (SCO Unix) How to install hp jetdirect print server on Unix. Before you do anything else, the printer needs an IP address. Some models let you do that right on the printer itself, all have Windows software that will assign it, and if all else fails you can configure it with BOOTP.
 
(SCO Unix)How do I reset the root password if I forget it? (part 1)  by (various)
- (SCO Unix) Reset lost root password, Unix and Linux, with and without emergency boot media.
 
(SCO Unix)How can I add or remove printers from the command line?  by (various)
- (SCO Unix) How can I add, modify or remove printers from the command line?
 
(SCO Unix)When should I use kill -9?  by (various)
- The idea here is that properly written programs will respond to a -15 by cleaning up anything they need to do before dying. Understand that this is not a matter of priorities, or the system giving more time with a -15; it's simply that a program can catch the -15, do what it needs to do and then voluntarily exit. It could also choose to ignore the -15 all together. If it hasn't made any provisions at all, the -15 works exactly like the -9: the process dies immediately.
 
(SCO Unix)What is a zombie process?  by (various)
- (SCO Unix) Why can't you kill a zombie process? One of the early things people learn about Unix is that a "kill -9" is invincible- that a process must die if you send it a KILL (-9). However, that's not entirely true
 
(SCO Unix)How do I test an imap server?  by (various)
- The "abc1" etc at the begining of each command is just a tag you make up. Supposedly it should be unique for each line; I've found you can actually use the same tag over and over again.
 
(SCO Unix)How do I add a default route?  by (various)
- How to add a default route on various versions of SCO Unix and have it survive a reboot.
 
(SCO Unix)How do I test a smtp mail connection?  by (various)
- When your GUI mail client doesn't work, you need to know whether the problem is at the server or the client. You could download a different client (Thunderbird, if you are using Outlook or Apple Mail) but why spend that time when you can test from thye command line?
 
(SCO Unix)How do I clear log files?  by (various)
- (SCO Unix) There is a proper way to clean out log files - don't make the mistake of removing them!
 
(SCO Unix)How can I rename multiple files using wildcards?  by (various)
- (SCO Unix) How can I rename multiple files using wildcards if I don't have Linux "rename"?
 
(SCO Unix)How can I send email attachments from the command line?  by (various)
- Sending attachments from the command line with mutt, uuencode and other methods. If it's just arbitrary text or a file you want to send, and don't care about it looking like a real attachment, you can use ordinary "mail" ("mailx" on some Unixes) at the command line. However, that's NOT a mime attachment - it's just your file mixed in to the mail message. However, some mail clients will see it and treat it as a real attachment, so this may be "good enough":
 
How can I recursively grep through sub-directories? 
- You must mean that your ancient Unix doesn't have GNU grep, right? If you do, just go do a "man grep"; you don't need to read this (though you may want to just so you really appreciate GNU grep). Just add "-r" and grep will search through subdirectories.
 
Open Source and Terrorism 
- Does Violating Intellectual Property Rights Make You A Terrorist? I'm sure Microsoft loves to hear this kind of crapola.
 
Darl McBrides Open Letter on Copyright (SCO Lawsuit) 
- Blog # 713 Darl McBride's Open Letter on Copyright (SCOLawsuit)
 
What idiot puts ATM's on the Internet anyway? 
- Blog # 716 What idiot puts ATM's on the Internetanyway?
 
Actually it's not quiet..  
- The "major vulnerability" he crows about comes from trusting a LOCAL DNS SERVER. That is, a DNS server ON YOUR OWN LAN. Big whoop,because if you have a compromised DNS server on your lan, that's probably just the beginning of your problems
 
Watch your clicks! 
- It's a little embarrassing to even say this, because this is so basic that nobody should be fooled by it, but apparently people are. What you see isn'y necessarily what you get!0
 
Unixware Review 
- Although the reviewer doesn't explore this aspect, I think reading this review points out many of the reasons why SCO has lost both market share and success (before the current troubles, of course). They just haven't kept up. In fairness, they probably didn't have the financial resources to do so, but on the other hand, saddling themselves with the development burden of two very different OSes (Unixware and Openserver) can't have helped.
 
File Systems 
- I really think file systems was a bad idea to begin with. I never got much agreement on that.
 
More reasons not to click on Email links 
- Blog # 725 More reasons not to click on Email links
 
DSL lines and filters 
- lack of dsl filters and bad dsl filters can cause packet loss on dsl internet lines.
 
IBM NetFinity 4500R ipsraid install 
- However, I knew darn well that they don't make different CD's for every OS out there, so I went to http://www-3.ibm.com/pc/support/site.wss/MIGR-39729.html. The README file there showed me that SCO BTLD images were on the "Linux" CD, so I downloaded that and made a BTLD floppy from it.
 
SCO's "custom" problems 
- SCO's custom is amazingly bad software. "Unable to start software manager. Possibly because it is already in use"
 
SCO's header files 
- SCO offers very bad examples as 'copied' code. It just seems beyond reason that SCO could once again be this careless. Didn't they learn anything from the first debacle of purloined code that wasn't?
 
Fence sitting (SCO Lawsuit) 
- This is politics. I am neither for nor against proprietary code.0
 
Automated Kernel Recompilation  by Avinash Shankar
- A script to automate kernel configuration, linking and installation.
 
Hardening your Perimeter  by Michael Desrosiers
- If your router is compromised, you are open to attack. Learn how to minimize your risk and maximise protection.
 
More using the spooler to print to email: email attachments  by Dirk Hart
- We already know how to modify a spooler interface script to email plain text to people, but it bothered me that print jobs with embedded PCL commands or other escape codes might get mangled in the emailing process.
 
Understanding Web Forms 
- Mining data from web forms with Perl - we can get whatever we want (assuming they have it, of course) whenever we want from their web form.
 
Apache Cookbook 
- You wouldn't want this as your ONLY Apache book. Too much left out, too much knowledge assumed. That's not a condemnation though: you would want this as a companion to Apache - The Definitive Guide.
 
Linux|Unix Server Hacks 
- I wasn't as enamored of this as were some other reviewers. I wasn't completely unhappy, I don't have any real dislike or serious complaints, but I wouldn't give it the near 5 star rating that Amazon has for it. Maybe 4 stars. It's "good", just not "great".
 
Open Source Network Administration  by Bruce Garlock
- The title to this book sounded interesting, so I decided to purchase it. The book covers several different Open Source tools, and I was pleased to find that the author picked a few of them that I use to manage my network.
 
Windows XP Annoyances 
- It's misnamed because it really mostly is not about annoyances. Honestly, unlike earlier versions of Windows, there aren't enought real irritations in XP to make a book out of. Sure, there are some stupidities, like the "Category" view for control panel, and the stupidly simplified Search, and this does cover those things and more. But mostly this is a technical guide to XP - setting it up, fixing problems, using it. There are some bigger and perhaps more inclusive XP books out there, but I found this to have reasonable depth of coverage without belaboring the obvious.
 
split 
- Breaks a file up into separate files, either by lines or bytes. Split is useful when you need to send a large file in chunks.
 
tty 
- There's a tty command, and a /dev/tty device. The device file has the magical property of always being YOUR tty: that is, anything you write to it will appear on your screen, and reading from it always comes from there also. That can be useful for a number of reaons.
 
date 
- Displays or sets the date. Setting the date is often difficult for new users: the syntax can be strange and the man page can be confusing. Worse, it is different on the various Unix variants.
 
nohup 
- Run a command that won't be killed when you log out. When you log out or are otherwise disconnected, a hangup signal is sent to all your processes. Using nohup causes those signals to be ignored.
 
screen 
- Allows multiple terminal sessions, and reconnecting to disconnected sessions. It can be very useful for those awful situations where you need to keep using some remote program but our dialup or internet connection is flaky and you keep getting thrown out.
 
pop, imap 
- There are two basic ways mail clients get email: POP and IMAP. The difference between the two is that POP brings messages to your machine, while IMAP ALWAYS leaves messages on the server
 
unexpand 
- I have to say I have NEVER used either of these commands, but probably more because I forget about them than from not needing them.. Their use is to turn tabs into spaces and vice-versa, which does come up once in a while, but when it does,I'm usually in vi so I just do it there.
 
script 
- Back in the days of dumb terminals, I used this a lot. Nowadays, with scrolling windows and easy cut and paste, it's not so necessary but it's not a bad idea to know about this in case you ever need it.
 
who 
- I'm regularly suprised to find Unix/Linux folk who don't know 'w' as a replacement for 'who': less typing, and more information. If you don't know about this, try it - you'll like it.
 
su 
- Switch User Without any arguments, this assumes you want to become 'root', which is probably most of what it is used for. It will ask for the password (root's password if you haven't specified a user) and if you can give that, you will effectively become the other user.
 
csplit 
- Split a file by context. This again is a command I've seldom used. It's not that it isn't potentially useful, but usually the criteria I'd need are way beyond this commands capability. Apparently I'm not the only one to find little use for this: it's not even to be found in BSD distros.
 
logger 
- An ordinary user can run this without read or write permission on the system log file. It simply adds a date stamp, your login name, and whatever arguments you gave it
 
command 
- This is a safety net. You can use it to make double-dog sure that you are not accidentally invoking some function.
 
strings 
- Extract printable strings from a file. The usual use is to look inside some data or program file to get possibly useful information out of it. It's also useful if you have a file that MIGHT contain garbage control characters and you just want to be safe.
 
xargs 
- Manages arguments passed to another command. This is often used either to increase efficiency (avoiding calling a command once for each argument) or to overcome shell environment limits ('Argument list too long').
 
passwd 
- For everyday usage, 'passwd' looks simple enough: to change your login password, simply type 'passwd' at the command prompt. You may be prompted for your current password, and then will be asked for a new password. It will ask twice, to be sure you didn't mis-type.
 
apache 
- During 2001 and the first half of 2002 several companies hosting very large numbers of hostnames including Webjump, Namezero, Homestead, register.com and Network Solutions migrated to Microsoft-IIS. Subsequently these businesses have either failed, significantly changed their business model, or reverted to their previous platform, and Microsoft-IIS share is now in line with its long term pre-summer 2001 level of around 20%.
 
argv0 
- Any unix programmer will probably realize what this program does just from its name. It runs an arbitrary program, but does so setting argv[0] to a name you specify.
 
dirname 
- Very simple commands for breaking up filenames: 'basename /etc/passwd = passwd,dirname /usr/lib/sendmail = /usr/lib' and dirname this will return '.'.
 
calendar 
- This isn't "cal", but rather a reminder service. That is, it could be used for that, though I doubt many people do. I suspect that more people use it for its built in calendars.
 
echo 
- What could be more simple? 'bash-2.05a$ echo foo foo ' Well, actually it does get more complicated. The first problem is the interpretation of escape characters.
 
ncftp - a better ftp client 
- The advantages of ncftp include automatic resumption of failed downloads and ease of working through firewalls.
 
dump 
- Filesystem backup or a core dump. Sometimes people will use this generically for any kind of backup, but 'dump' is a very specific tool. Dump is ancient stuff - it goes way back to the very beginnings of Unix. You would almost always find older systems using dump for backups.
 
lynx 
- Text based browser. Some of you probably can't imagine why you'd care about that, but in fact I use Lynx every single day. No, not to browse web pages, but to dump them out to text.
 
expect 
 
chsh 
- Change your login shell. What shell you like is a matter of personal preference. I can argue that if you have no preference, you should be using bash (or ksh if bash isn't available), but if you have a lifetime of experience with csh or tcsh syntax, that's your choice.
 
watch 
- (Linux) Runs some other command at regular intervals and shows you the result. Useful for when you are constantly checking on something like diskpace, the size of a file, some network connection: whatever, it really doesn't matter. Just run 'watch' with your command , enclosing it in quotes if you are using pipes.
 
ulimit 
- This sets limits on processes. It's well known, but I suspect many people only know it for setting the size of core files. It can actually control much more.
 
chattr 
- Linux ext2 and ext3 file systems support addding additional attributes to files. You do this with 'chattr'. The most common attribute is 'immutable', which prevents a file from being changed ever.
 
2>&1 
- Shell redirection, and the '2>&1' is probably the most common form. More interesting is the case of a shell script where you want to capture stderr but let any "ok" output go to the screen.
 
Using the spooler to print to email  by Dirk Hart
- First define a new spooler destination using the dumb interface script and /dev/null for the device. Give your new spooler destination a name - I called mine email displaying a deficit of imagination. Next, change directory to /usr/spool/lp/admins/lp/interfaces and edit email if that's what you called it. I use and like vi for editing but you can use whatever editor you like. Finally, I added a line, changing the FILTER to get the emailing done.
 
Python vs. Perl 
- Perl folk seem not to like Python, at least not at first glance. It apparently can grow on you, but I'm sticking with Perl.
 
Lost root password (Linux) 
- Have you ever forgotten your root password? I have a very good memory. I remember most of my client's passwords , I remember telephone numbers, and of course I know my own passwords. A while back I installed Fedora on a system here, and today I wanted to look at something and .. what was the root password? Hmm, not that.. how about? .. nope, well it must be.. darn!