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Where COMMAND is the process(es) name. I prefer to get all states but you may add ESTABLISHED in the grep regex.
lsof -c apache2 | egrep -o 'TCP.*ESTABLISHED.*$'
-nP flags are optional and UDP is irrelevant for established connections
Similar but using the process id:
lsof -nP -p PID | egrep -o '(TCP|UDP).*$'
There are 4 alternatives - vote for the best!
Sometimes apache will get stuck in an established state where you can't get a list of the connecting IP's from mod_status... not a good thing when you need to ban an abusive ip.
If you can do better, submit your command here.
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