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Port in use on Solaris 9

Posted on 2004-10-27
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Last Modified: 2013-12-21
I want to see if port 389 is listening on Solaris.  What's the best way?
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Question by:lcor
    5 Comments
     
    LVL 19

    Expert Comment

    by:ramazanyich
    run
    #netstat
    you will see all established and waiting connection.
    check for lines with LISTENINg on it.
    If something is runnning on port 389 you will see it.
    0
     
    LVL 38

    Assisted Solution

    by:wesly_chen
    netstat -a
    You need "-a" option.

    Wesly
    0
     
    LVL 19

    Accepted Solution

    by:
    sorry it should be
    #netstat -a

    or better to see only daemons:
    #netstat -a | grep LISTEN

    In lines check that ldap or 389 doesn't exist in first column. It means that there is no daemon listening on port 389.

    0
     
    LVL 48

    Assisted Solution

    by:Tintin
    Another way is to telnet to the port, eg:

    telnet localhost 389
    0
     
    LVL 38

    Assisted Solution

    by:yuzh
    netstat is the tool for the job, eg: to check the occupied port being used and the
    appplication who use them, use command:

    netstat –anP tcp

    To find out the program listening
    to a paticular tcp port

    netstat -a | grep LISTEN | grep port-no

        check port 80:
        netstat -a | grep LISTEN | grep 80

    man netstat
    to learn more details.

    and see http:Q_20887412.html

    If you want to find out the process ID run on a particular port, you can use the following
    script:

    #!/usr/bin/ksh

    echo -n "which port?> "
    read port

    for pid in `ps -ef -o pid | tail +2`
    do
      foundport=`pfiles $pid 2>&1 | grep "sockname:" | grep "port: $port$" |
    awk
    '{print $NF}'`
      if [ "$foundport" != "" ]; then
        foundproc=`pfiles $pid 2>&1 | grep "^$pid:"`
        echo "$foundproc, $foundport"
      fi
    done

    exit

    # End of script


    Another good tool for the job is "lsof" you can download it from:
    http://sunfreeware.com/



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