Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Security-Basics
[Top] [All Lists]

Re: how to block ALL AIM traffic ?

Subject: Re: how to block ALL AIM traffic ?
Date: Thu, 28 Apr 2005 00:29:44 +0200
Realized Mofo wrote:
I am at an office with 50~ machines , out of thoes about 20 or so use
AIM. I would like to block AIM and normally i'd just block the AIM
port (5190) or whatever it is..

BUT AOL seems to have found a great way around this and has 4000+
diffrent ports they use and i'd assume lots of diffrent hosts.

Whats the best way of blocking all AIM traffic ?

I'm not sure about AIM, but since it is somewhat compatible with ICQ, I think I can compare these two. For ICQ it is IMHO not possible to block ICQ traffic with port-based firewalling, since you can use almost any port with ICQ (it works even over port 25 or 53), so I think you can always find a port that is open in the firewall. Except you block all traffic and allow internet access only via proxy. Then you can do aa application or protocol based (means content-aware) filtering, which should work for these protocols.

best regards, Markus

<Prev in Thread] Current Thread [Next in Thread>