This post originated from an RSS feed registered with Java Buzz by Sam Dalton. Original Post: Find which process is holding a port open on Solaris Feed Title: import java.*; Feed URL: http://www.samjdalton.com/pebble/rss.xml Feed Description: Random, Infrequent Bloggings of a Techie Latest Java Buzz Posts Latest Java Buzz Posts by Sam Dalton Latest Posts From import java.*;

This is something that I seem to need to do increasingly more often when debugging connection problems in our application. Sadly, I have no access to run lsof (which would give me this information), so I use the following script:

echo "which port?> "
read port

for pid in `ps -ef -o pid | tail +2`
  do
    foundport=`/usr/proc/bin/pfiles $amp;pid 2>&1 | grep "sockname:" | grep "port: $port$"`
    if [ "$foundport" != "" ]
    then
      echo "proc: $pid, $foundport"
    fi
done

This needs to be run as the user that owns the process that you suspect, so it is not fool proof, but it has proved very useful so far!