Chat Monioring
 

i have heard that there is MSN Chat monitoring software for linux.Which can see what the users in my lan are chatting.Is it true?what is the program name?
thanx.

You could use a packet sniffer for this (tcpdump, wireshark/ethereal). You should also advise users that you intend to monitor their conversations, there are privacy concerns...

You could also use snort to log any chat messages or even catch emails, though as gilead suggested you got to update your users about this as well & you got to present some sensible reasons infront of them to justify this act of yours as this is a pure breach of privacy.

p.s. If you know what is going through a packet & its structure, its not at all dificult to make rules to catch chat messages & emails.