I like lsof .   Whenever I’m building a new AIX system I always make sure to install it. I really like the fact that I can quickly list processes that are connected to TCP and UDP ports on my system. For example, to check for the current SSH connections on my system I can run lsof and check port 22 (SSH). Immediately I have a good idea of the existing SSH sessions/connections. I can also check to see if the SSH server (sshd daemon) is running and listening (LISTEN) on my AIX partition.   # lsof -i tcp:22 Value of I :77    np:0 COMMAND... [More]

Tags:  rmsock netstat aix gibson lpar wpar lsof chris