process using tcp port?

[aswolff]

Is it possible to determine the process id (or orphaned process) that is still connected/listening or using a specified unix port?


I have any application that uses port 16001 but when I try to start it up it tells me that it cannot connect to the port.

Thanks.

 

[PHV]

You may try lsof:

http://people.freebsd.org/~abe/

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[aswolff]

Actually I found this nifty script for Solaris. It did the trick:

#!/bin/ksh
#
# 7-30-2003
# find from a port the pid that started the port
#
line='-------------------------------------------------------------------------'
pids=`/usr/bin/ps -ef | sed 1d | awk '{print $2}'`

# Prompt users or use 1st cmdline argument
if [ $# -eq 0 ]; then
         read ans?"Enter port you like to know pid for:  "
else
         ans=$1
fi

# Check all pids for this port, then list that process
for f in $pids
do
         /usr/proc/bin/pfiles $f 2>/dev/null | /usr/xpg4/bin/grep -q "port: $ans"
         if [ $? -eq 0 ] ; then
                 echo "$line\nPort: $ans is being used by PID: \c"
                 /usr/bin/ps -o pid -o args -p $f | sed 1d
         fi
done
exit 0