good sniffer for server

[mia]

Hello,

What is a good sniffer for bsd server? I would like to see all data in my LAN. It should be clearly understandable for novice bsd user (me) :-)

thank you for advice.

[vivek]

Run tcpdump get data about port # 80 (httpd server)
tcpdump -n -i ${interface} -s 0 -w ${output.file} src or dst port 80
and Use gui tools such as net/wireshark (which is both network analyzer that lets you capture and interactively browse ) to see data later on. Usually servers do not have GUI installed so use tcpdump and wireshark combo.

[Lowell]

tcpdump is already on your system, and that's what I use. net/wireshark is a nice port with a friendly GUI.

[mk]

novice user + sniffer = no good
if you are novice, thus no understanding of network protocols, why you need sniffer?

[DutchDaemon]

Maybe sniffing is the wrong place to start when analysing LAN traffic, because it presupposes an in-depth knowledge of network protocols. You'd be much better served with something like net/ntop which will show you traffic flows and graphs in a web interface.