Ho to use tcpdump

[Jojo Castro]

Hi all,

We are currently some link problem between our front end connecting to our host via port.

Here is the set-up

10.144.10.134 – connects to 10.121.55.76:21920 and 10.121.55.79:21920

10.144.10.152 – connects to 10.121.55.76:21921 and 10.121.55.79:21921

10.144.10.181 – connects to 10.121.55.76:21922 and 10.121.55.79:20922


For example i want to see the status of 10.144.10.134 connection to 10.121.55.76 using port 21920, how does tcpdump helps?

What is the syntax?

Thanks!

[avizen9]

here is easy tutorial, go through it will
guide you, thanks,

http://openmaniak.com/tcpdump.php

[savus · Accepted solution]

Hello can use this filer:

tcpdump src 10.144.10.134 and dst 10.121.55.76 and port 21920

Regards,
Stefan

[Suraj K Sankari]

Hi,
see the man page of
http://www.tcpdump.org/tcpdump_man.html

Suraj

[Jojo Castro]

Thanks to all