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SCO_OSR5

SCO Unix articles and postings. Find the FAQ at SCO Unix FAQ.

Find basic info about SCO at New to SCO

Be sure to use the Search box to help find what you need!

It's way past time to move off SCO. I have a list of resources to help with that.



Environment variables - maximum size of a variable? An 18 MB or larger variable is much more than any shell script is likely to need, but it does show that you need not fear assigning fairly large chunks of data if you need to.


Title Date Comments
VMware Fusion vs. Parallels Desktop   2012 10  2012/10/17 BruceGarlock
- Similarly priced, and VMware does have the advantage in premade machines, but I like Parallels better. -
Moving an old SCO Unix Filepro box   2012 08  2012/09/18 TonyLawrence
- She thought she wanted to put a public IP address on this old SCO box. Fortunately, no one was able to help her with that. -
Simple outgoing email for SCO Unix (and Linux)   2012 02  2013/05/22 rblake
- Configuring MMDF or Sendmail on SCO Unix was never fun and it only gets worse as fewer people care about any of it. Here is a simple fix for scripted outgoing email -
Local printing in Synchronics   2011 11  2012/03/06 anonymous
- I know exactly what he has - an old SCO Unix system with a Digiboard multiport serial board, green screen Wyse terminals and Okidata printers with serial cards. I can handle all of that. -
He needs a SCO box   2011 06 
- Keeping an old SCO system running is sometimes necessary. Here is some help -
SCO Unix OSR5 DHCP   2011 05 
- Early SCO Unix had no DHCP capability (it did have DHCP server). That perhaps was somewhat reasonable; these machines were servers and could be expected to have a static IP address. However, as DHCP can do much more than simply provide an IP address, having DHCP would have been advantageous at times. -
Why does fsck need a scratch file?   2011 04  2011/06/02 KenPorter
- Although fsck hasn't needed scratch files for a while, large disks are reopening that need. -
Finding Yesterday's Date   2011 04  2012/09/11 TonyLawrence
- How to find yesterday's date on Linux, Mac and any other Unix. -
Murder and mayhem - killing users processes   2011 04  2011/10/28 BigDumbDinosaur
- how to kill all of a specific user's user processes without "killall" - or select a subset to kill -
Self defense for SCO users   2004 05 
- If you are running a SCO system, it's long past time to get serious about protecting yourself. -
SCO/Linux Transition Guide   2000 09 
- This is not a porting guide; this is a transition guide: a guide to the major differences between SCO and Linux. -
sco binaries linuxabi linux -->Re Run SCO Binaries onLinux   1997-2004 
- sco binaries linuxabi linux -->Re: Run SCO Binaries onLinux -
 
 
Kerio Connect Mailserver
 
 
Converting SCO to Linux - Another one down, two left   2011 04  2011/04/05 BigDumbDinosaur
- Our efforts to get clients off OSR5 and on to Linux commenced in earnest in 2004, which was right after SCO started with their "Linux stole our code" lawsuits. -
A SCO Openserver to Red Hat Linux Conversion   2011 04  2011/04/02 TonyLawrence
- A detailed history of a SCO to Linux Conversion - including desktop users. -
print filters -->Re print filters   1997-2004 
- print filters for System V printing (convert input for specific printer type, select specific pages to print) -
Linux and SCO Termcap Terminfo curses -->Re termconffiles and related matters   1997-2004 
- You might run a SCO binary application from a Linux console and get a pretty messed up result - it's probably termcap or terminfo on the SCO side having bad information about how a Linux console should be treated. -
Finding large files   2006 12  2010/10/02 wilson
- Where has the space gone? Although it is getting harder and harder to run out of disk space, some of us still manage to do it. -
bad block on jaz drive -->Re Using fsdb on damagedfilesystems   1997-2004 
- Using fsrd to repair damaged filesystems -
How do I reset the root password if I forget it? (part 1)   1997-2003  2010/08/21 TonyLawrence
- Reset lost root password, Unix and Linux, with and without emergency boot media. -
uname version -->Re UNIX version check command   1997-2004 
- Usually some variant of uname, often 'uname -a', but all sorts of other possibilies; t d epends on the Unix and in some cases even the specific version. -
Lost Root Password   1997 12  2011/03/23 TonyLawrence
- How to fix a lost root password on various versions of SCO Unix and SCO Xenix. -
Cron At and Batch   2000 01  2012/06/11 TonyLawrence
- Cron, Batch and At, including explanations of why it might not be working -
Understanding Device files   1998  2012/08/30 TonyLawrence
- Unix device files are not like ordinary files. Understanding their properties and use is very helpful. -
Changing System Name   2000 09  2010/12/07 TonyLawrence
- Jeff's article is more about other things you MIGHT have to change AFTER you change the ip address -
How to setup resolv.conf for DNS configuration   1997-2003  2010/05/24 alexB
- 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 -
Unix and Linux startup scripts, Part 1   2009 12 
- In the beginning, there was "init". If you had a Unix system, you had "init" and it was almost certainly process id 1. -
How do I set up a network printer or print server?   2009 09  2010/06/23 TonyLawrence
- How do I set up a network printer or print server? -
What is netcat and how do I use it?   2002 09 
- Using direct port printing on SCO Unix with Kevin Smith's 'netcat' for SCO. Note that Linux can do this in CUPS - this is only for old SCO Unix. -
Using Secondary drives   1998  2012/12/17 TonyLawrence
- This article is fairly specific to SCO Unix, but the general concepts of moving data and creating a symbolic link do apply to any Unix and Linux. -
Printing to a remote printer with a dynamic address   2003 06 
- You have a PC at home and you make some sort of connection over the internet to your server, but your application needs to print to your PC. -
How do I mount a CDROM?   1997-2003 
- This is an old article about mounting a CDROM in SCO Unix and is only left here for historical purposes. -
How can I monitor cpu usage?   1997-2003 
- This script is useful. (change "mawk" to "awk" if you don't have it- it still runs, just more slowly). -
How can i mount a ISO Image CD ?   2004 07  2010/07/10 TonyLawrence
- You have an image of a CD or perhaps of a floppy disk and need to mount it as a filesystem (Linux, Mac OS X, BSD, SCO, Solaris). -
How can I mount a SCO file system in Linux or vice-versa?   1997-2003  2010/07/16 nurray
- Mounting sco fs in linux - not eassy, but can be done -
New To Unix   2005 01 
- Understanding how and why Unix and Linux are not like Windows. Unix and Linux are different. If your first exposure to computers was DOS or Windows, some of what you learned there is going to trip you up in the Unix world. This article attempts to both explain how Unix is different, and also why it is different, because if you understand why, you'll find it easier to remember. -
How can I download a boot disk?   1997-2003  2013/03/25 TonyLawrence
- How can I download a boot disk? Finding Boot Media -
Printer Problems/Solutions   1999 01  2012/12/18 TonyLawrence
- SCO Unix Sys V printing basics - explaining interface scripts, simple printer issues and more. -
Telnet/FTP is very slow to connect   1997-2003  2013/01/27 anonymous
- Slow telnet or ftp connections are often caused by the server wanting to do a reverse DNS lookup to find out who is connecting -
How do I print man pages from the command line?   1997-2003  2010/12/25 Josh
- "man" formats the text with Ctrl-H backspaces and multiple letters to make bold text. Your printer may make a mess of it. -
How do I solve "fork failed no more processes"?   1997-2003 
- This is an old article about SCO Unix process table tuning and is only left here for historical purposes. -
Adding another hard drive   1998  2010/06/18 TonyLawrence
- You add a hard drive, and configure the file systems on it, by running "mkdev hd". -
Technical FAQ 1 of 9   1997-2003 
- FAQ Questions and Answers Common to SCO Unix, Xenix and ODT, some Linux -
How can I increase the size of my root or other filesystem?   1997-2003 
- How can I increase the size of my root or other filesystem? -
write to all users -->Re Broadcast message   1997-2004 
- The "wall" command does that. Login as root, type "wall" <ENTER>, then whatever you want to say (multiple lines are OK), follwed by <ENTER> and then CTRL-D -
convert jpg image files to pdf   1997-2004 
- ImageMagick's convert command: convert *.jpg publish.pdf. I can't think of how much simplier you can get... -
Maximun number of socket connections   2006 02 
- 100 connections hangs server.. configuration? Possible tuning limits on SCO Unix that might cause this. -
Using the spooler to print to email   2003 12 
- 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. -
Technical FAQ 2 of 9   1997-2003 
- Questions and Answers Specific to OpenServer Release 5 -
sendmail setup guide   1997-2004 
- To thwart the ever-growing problem of junk and spam email, which in many cases cripples systems and daily, business operations it will be necessary to convert a growing number of systems to newer and more secure methods of mail deliver. Methods to implement include the blocking of mail relaying through systems. Checks of who is sending mail and who is authorized to do so. Creation of blacklisted senders from which mail will always be rejected. Creation of white lists specifying each individual who is allowed mail access while denying all others. Using new techniques of identifying sources of spam email such as real time black hole lists and content filtering such as spamassassin. -
linux reset screen -->Re fixing garbled display   1997-2004 
- linux reset screen -->Re: fixing garbled display -
 
 
Kerio Control Firewall
 
 
Hylafax 6 on Centos 5   2009 11  2010/01/25 bubba
- I'm doing another SCO to Linux conversion and this one used Vsifax. That's hardly a show stopper, but this customer wanted to use Centos and Vsifax says they don't currently support using Centos. So we tried Hylafax. -
Unix and Linux startup scripts, Part 2   2009 12  2009/12/11 TonyLawrence
- The rc.d system is used on NetBSD, FreeBSD and DragonFly (andpossibly a few other systems) to launch daemon processes when the system goes multiuser. -
Why do I get portmapper is not responding errors?   1997-2003 
- This is an old article about 'portmapper' errors on SCO Unix and is only left here for historical purposes. -
What graphics driver do I use for my video card?   1997-2003 
- This is an old article about SCO Unix video card drivers and is only left here for historical purposes. -
no such device or address, no such file or directory   1997-2004 
- If the drive is being recognized, you should have two lines in `hwconfig -h` output. You get a "%tape" line at boot time, indicating that the driver is configured to allow access to a drive. Then, the first time you access the drive, you get a "%Stp" line giving more specific details of the actual drive. -
Technical FAQ 7 of 9   1997-2003 
- Questions and Answers Related to Printing (mostly SCO OSR5, some Linux) -
add cr/lf carriage return line feed crlf -->Re ADD CR/LFTO FILE   1997-2004 
- Well, your little program is not what he needs, because the file he has to work with has NO NEWLINES in the first place, so I suspect your addcr/rmcr would not do what he wants, which is to add a NL/CR after every 2048 bytes in the input. -
timeout of ping -->Re timeout of ping   1997-2004 
- The new flag, carped from BSD, means 'stop the whole ping session after this much time, regardless of how many packets have been sent or received, or current success status'. -
How do I find out serial numbers of my various components?   1997-2003 
- How do I find out serial numbers of my various components? (SCO Unix) -


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