This article is from a FAQ concerning SCO operating
systems. While some of the information may be applicable to any OS,
or any Unix or Linux OS, it may be specific to SCO Xenix, Open
There is lots of Linux, Mac OS X and general Unix info elsewhere on
this site: Search this site is the best
way to find anything.
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.sco.com/TLS/. But note this Sept 14 2000 post
from Kamal Mostafa:
The 'ip' driver included in TLS709 needs the
routine bcmp(), which didn't appear in the kernel until 5.0.4.
After I discovered this problem, I fixed the 'ip' driver so that it
no longer needs bcmp(). So the latest version of the 'ip' driver
(e.g. from a 5.0.6 system) will work on 5.0.x systems. Eventually,
I will update TLS709 with the newer version. In the meantime,
replace the /etc/conf/pack.d/ip/Driver.o that TLS709 put there with
a newer version. If anyone else is getting this problem, you can
either lift the 'ip' driver from a 5.0.6 system, or contact
me directly and I'll email you a replacement binary as well.
Kamal A. Mostafa SCO Engineering
Kamal has given me permission to put this driver on my site;
you can shift-click (or "Save Link As") to download it from aplawrence.com/pub/ip-Driver.o.
Copy it to /etc/conf/pack.d/ip/Driver.o and relink your kernel
(make a safe copy of your ip/Driver.o first).
You'll also need netstat: aplawrence.com/pub/netstat.
Copy that to /usr/bin and
chown bin:mem /usr/bin/netstat
chmod 2711 /usr/bin/netstat
Again, be sure to save a copy of your original netstat!
See also IPFILTER firewalls
for OSR5 /Security/ipfilter.html and http://www.pcunix.com/Security/firewallserver.html
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