From: RadleyRobot <RadleyRobot@jpr.com>
Subject: SCO Technical Articles released on 20010407
Date: Sat, 7 Apr 2001 17:32:35 GMT
The following problems are addressed in Technical Articles that appeared
on SCO's web site in the week ending 20010407.
Each problem is preceded by the URL reference to get the relevant article
from the WAIS database at caldera.com.
http://www.caldera.com/cgi-bin/ssl_reference?104596
created 07 Jul 1994
revised 05 Apr 2001
PROBLEM: I wish to configure MMDF so as to prevent other organizations' mail
from being routed via my system, for example:
Z.fu.com X.bar.com
^ ^
| |
v v
"A.internal.com"
(Mail Gateway)
^
|
v
"B.internal.com",
"C.internal.com",
...
I want to allow my systems to both send and receive mail from
external systems (such as Z.fu.com or X.bar.com), but prevent
external systems from routing mail to each other via my gateway
(such as Z.fu.com to X.fu.com via A.internal.com).
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?109982
created 22 Feb 1999
revised 04 Apr 2001
PROBLEM: When I use the network configuration manager (or netcfg) to increase
pseudo-ttys, the number of regular pseudo-ttys (/dev/pts### devices)
is always set to 256, the number of SCO pseudo-tty devices
(/dev/ttyp## and /dev/ptyp## devices) is set to the specified value.
OR:
The online documentation for increasing the number of pseudo-terminal
devices is incomplete.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?111402
created 07 Sep 2000
revised 02 Apr 2001
PROBLEM: What is Support Level Supplement (SLS) ptf7666c, the UnixWare 7.1.1
TCP/IP, IO and various fixes Supplement?
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?112421
created 06 Feb 2001
revised 06 Apr 2001
PROBLEM: I just received a notice saying my UnixWare 7.x.x Mail Server is
an open relay and has been listed in the ORBS database at:
http://www.orbs.org
ORBS (the Open Relay Behavior-modification System) is a
database for tracking SMTP servers that have been confirmed
to permit third-party relay. If I run the Relay test available
at http://www.abuse.net/relay.html (requires registration) my
server fails on "Relay Test 8".
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?112681
created 23 Feb 2001
revised 05 Apr 2001
PROBLEM: The version of rtpm shipped with UnixWare 7 Release 7.1.1 is
vulnerable to buffer overflows in user input. These overflows
could lead to a local system compromise.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113061
created 16 Mar 2001
revised 03 Apr 2001
PROBLEM: With previous versions of OpenServer the "routed" daemon would start
by default. With OpenServer 5.0.6 this does not happen.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113121
created 20 Mar 2001
revised 02 Apr 2001
PROBLEM: My server has panicked with the following messages:
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113122
created 20 Mar 2001
revised 02 Apr 2001
PROBLEM: Files remain locked after closing on NFS mounted filesystems from
UnixWare 7. The following is "example" source that exhibits the
problem;
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h> /* errno */
int main()
{
int f, g;
struct flock fl;
struct stat info;
char buf[8];
f = open("zot", O_RDWR, (S_IREAD | S_IWRITE));
if (f < 0) {
printf("first open failed!\n");
goto abortend;
}
/* initialize the lock structure */
fl.l_type = F_WRLCK; /* lock mode */
fl.l_whence = 1; /* start at current file position */
fl.l_start = 0; /* start at current file position */
fl.l_len = 0; /* the whole file */
/* lock the entire file */
if (fcntl(f, F_SETLK, &fl) < 0) { /* error? */
printf("First lock failed!\n");
if ((errno == EACCES) || (errno == EAGAIN)) { /* already locked? */
printf("file already locked!\n");
goto abortend;
}
}
g = open("zot", O_RDONLY, (S_IREAD | S_IWRITE));
if (g < 0) {
printf("second open failed!\n");
goto abortend;
}
/* initialize the lock structure */
fl.l_type = F_RDLCK; /* lock mode */
fl.l_whence = 1; /* start at current file position */
fl.l_start = 0; /* start at current file position */
fl.l_len = 1; /* one byte */
/* attempt to lock the bytes without waiting */
if (fcntl(g, F_SETLK, &fl) < 0) { /* error? */
printf("read lock failed!\n");
if ((errno == EACCES) || (errno == EAGAIN)) { /* already locked? */
printf("file already locked!\n");
}
goto abortend;
}
read(g, buf, 1);
printf("buf = %c\n", buf[0]);
lseek(g, (long) 0, SEEK_SET);
/* initialize the lock structure */
fl.l_type = F_UNLCK; /* lock mode */
fl.l_whence = 1; /* start at current file position */
fl.l_start = 0; /* start at current file position */
fl.l_len = 1; /* one byte */
/* attempt to unlock the bytes without waiting */
if (fcntl(g, F_SETLK, &fl) < 0) { /* error? */
printf("read unlock failed!\n");
goto abortend;
}
#ifdef workaround
/* initialize the lock structure */
fl.l_type = F_UNLCK; /* lock mode */
fl.l_whence = 1; /* start at current file position */
fl.l_start = 0; /* start at current file position */
fl.l_len = 0; /* whole file */
/* attempt to unlock the bytes without waiting */
lseek(f, (long) 0, SEEK_SET);
if (fcntl(f, F_SETLK, &fl) < 0) { /* error? */
printf("read unlock failed!\n");
goto abortend;
}
#endif
close(g);
close(f);
abortend:
return (0);
}
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113141
created 21 Mar 2001
revised 02 Apr 2001
PROBLEM: Running "ap -r" on multiple users sets wrong permissions on
/etc/passwd and /etc/group.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113142
created 21 Mar 2001
revised 02 Apr 2001
PROBLEM: Disk and swap space usage figures reported by snmp (e.g.
by the command "getmany localhost public hrStorage") may
be negative or otherwise incorrect.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113221
created 28 Mar 2001
revised 03 Apr 2001
PROBLEM: "/sbin/emergency_rec -e tape_drive" fails to open /dev/rdsk/p0 on a
Compaq server with an IDA RAID Controller.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113222
created 28 Mar 2001
revised 02 Apr 2001
PROBLEM: I have installed Tarantella Enterprise 3 on my UnixWare 7.1.1 server
but I cannot connect to the URL http://<my_server>/tarantella
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113223
created 28 Mar 2001
revised 02 Apr 2001
PROBLEM: "/sbin/emergency_rec -e tape_drive" fails to open /dev/rdsk/p0 on a
Compaq server with an IDA RAID Controller.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113261
created 29 Mar 2001
revised 02 Apr 2001
PROBLEM: After I install Tarantella Enterprise II any files I had in the /tmp
directory starting with "inst" are removed.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113281
created 30 Mar 2001
revised 03 Apr 2001
PROBLEM: When an "fsck -d -ofull" is performed on a non-root filesystem,
the fsck hangs and at the point it runs Phase 5 Checking
Synchronous Log.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113282
created 30 Mar 2001
revised 02 Apr 2001
PROBLEM: My proxy server has been configured to reject IP Addresses but allows
DNS Names.
This prevents my Tarantella Array to provide me a server in the array
to log into.
==== ==== ==== ==== ==== ==== ==== ==== ==== ====
http://www.caldera.com/cgi-bin/ssl_reference?113321
created 03 Apr 2001
revised 04 Apr 2001
PROBLEM: I have installed my UnixWare 7 system with a genuine license but when
I log into the system I get the message:
NOTICE: Licensed for a limited product evaluation period only.
If I run the License Manager, it indicates that the status of the
license is:
Valid until 10/21/2026
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