how to list open connections and applications?

[unixguy_1]

how to list open connections and applications for a particular user?

thanks in advanve.
Unixguy.

[Torsten.]

I think the LSOF application is what you are looking for.

[Steven E. Protter]

Shalom,

netstat -an | grep -i listen
# Shows you ever application listening. An application that is listening, is probably trying to server users.
lsof will let you see what a user is doing.

SEP

[unixguy_1]

thanks for reply,

can you please provide the examble of lsof command?

what lsof command will do?

thanks in advance
Unixguy.

[Torsten.]

see

http://hpux.connect.org.uk/hppd/hpux/Sysadmin/lsof-4.82/

[Nafez ALNajjar]

Hi,
Try:
netstat -a |grep -i

e.g
netstat -a |grep -i telnet
to get the current opened connections to your server and the running listener.

Regards,
Nafez ALNajjar

[Viktor Balogh]

for listing the applications of a specific user this is the recommended way:

# ps -fu USERNAME

for the open connection you can use netstat with the '-a' option like others said