Hi all,
I was going through the mailing archive of some site and found the queries regarding blocking yahoo and msn messenger using iptable. There is a small script which I have written to block the yahoo,msn and rediff messenger using iptable. I thought to share it with you all as it might help some one on the list to block them.
u can download the script from http://www.linzsystem.com/iptmess.tgz
Took around a week to compile this huge list of servers and it definitely works
Mohan