[svlug] Pac Bell system attacks

[Rick Moen]

begin Roger Lynker quotation:

> Is there a list somewhere of ports I should [monitor] closely? 

Good luck on _that_.  If you want just a fairly comprehensive list of
official TCP/UDP port number assignments, start here:

http://www.iana.org/  
   Link "Protocol Numbers and Assignment Servers" goes to
http://www.iana.org/numbers.htm  
   Link "port numbers" goes to
http://www.isi.edu/in-notes/iana/assignments/port-numbers

There are better-organised listings elsewhere (e.g., the one linked from
http://www.networksorcery.com/enp/), but that's the easiest to
find, and has IANA's imprimatur.

Want to know _which_ ports are security-sensitive?  Welcome to the study
of security.  You'll have fun reading Craig Hunt's _TCP/IP Network
Administration_, Nemeth and Frisch's sysadmin manuals, and a sampling of
the better books on Unix security.

-- 
Cheers,                   "Teach a man to make fire, and he will be warm 
Rick Moen                 for a day.  Set a man on fire, and he will be warm
rick at linuxmafia.com       for the rest of his life."   -- John A. Hrastar