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Thread: SuSE 9 problem resolution - Port conflict detected: 25 (zimbra-mta)

  1. #1
    timK is offline Junior Member
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    Lightbulb SuSE 9 problem resolution - Port conflict detected: 25 (zimbra-mta)

    The following occurred when installing Zimbra (both open source and network editions) on SuSE 9.1 Professional:

    It seems that during the install, Zimbra checks the ports to see if there are any conflicts with the services it is attempting to configure. During this check, I received the following messages...

    Code:
    Checking for port conflicts
    Port conflict detected: 25 (zimbra-mta)
    Port conflict detected: 25 (zimbra-mta)
    Typing (as root):
    Code:
    netstat -na
    displayed
    Code:
    tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN
    tcp        0      0 0.0.0.0:631             0.0.0.0:*               LISTEN
    tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN
    tcp        0      0 123.456.789.39:32818       123.456.789.104:80       TIME_WAIT
    tcp        0      0 :::22                   :::*                    LISTEN
    tcp        0      0 ::1:25                  :::*                    LISTEN
    udp        0      0 0.0.0.0:111             0.0.0.0:*
    udp        0      0 0.0.0.0:631             0.0.0.0:*
    However, I had no idea what service was using port 25 (and it wasn't Sendmail).

    Initially, I went through the rest of install to see if it would have an effect on the services. It turns out that the MTA would not start up.

    Here is what happened...

    By default, SuSE 9.1 Professional installs Postfix (not Sendmail). Both Cron and Fetchmail rely on either Sendmail or Postfix. The Zimbra CS installs its own Postfix. Since SuSE 9.1 installed Postfix (which uses port 25), Zimbra's installation of Postfix can't use the same port.

    To resolve this issue make sure that Postfix (and Sendmail) is taken out of system startup and the service shutdown (stopped) BEFORE installing Zimbra.
    In the "Zimbra Collaboration Suite Installation Quick Start" on page 10 it mentions:
    Code:
    Important: You will need to disable Sendmail in order to run the Zimbra
    Collaboration Suite. You can disable the Sendmail service with these commands,
    chkconfig sendmail off, service sendmail stop.
    "service sendmail stop" does not work on SuSE 9.1 Professional.
    On SuSE 9.1 Professional, issue these commands:
    Code:
    chkconfig sendmail off
    chkconfig postfix off
    cd /etc/rc.d
    ./sendmail stop
    ./postfix stop
    This will take care of both cases just in case you have Sendmail installed and not Postfix (for some reason or another).

    Hope this helps someone out there

  2. #2
    jholder's Avatar
    jholder is offline Former Zimbran
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    Default

    Thanks for all of the information. Took me a while to digest it.

    Can you
    >telnet localhost 25?

    how about
    >telnet localhost 110

    Thanks
    john

  3. #3
    phoenix is offline Zimbra Consultant & Moderator
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    Default

    John

    I think that's a post describing how he fixed the problem.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  4. #4
    timK is offline Junior Member
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    Thumbs up

    Quote Originally Posted by wannabetenor
    Thanks for all of the information. Took me a while to digest it.

    Can you
    >telnet localhost 25?

    how about
    >telnet localhost 110

    Thanks
    john
    To answer your question, Yes, I can telnet to both ports on localhost. This is what I get...
    On port 110 :
    Code:
    mail:~ # telnet localhost 110
    Trying 127.0.0.1...
    Connected to localhost.
    Escape character is '^]'.
    +OK mail.mymailserver.com Zimbra POP3 server ready
    On port 25 :
    Code:
    mail:~ # telnet localhost 25
    Trying 127.0.0.1...
    Connected to localhost.
    Escape character is '^]'.
    220 mail.mymailserver.com ESMTP Postfix
    --Tim

  5. #5
    phoenix is offline Zimbra Consultant & Moderator
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    Default

    So, are you saying you have a problem with Zimbra or that it's working OK? I took your first post to be the steps to get it working on SuSE, did I misunderstand it?
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  6. #6
    timK is offline Junior Member
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    Talking

    Quote Originally Posted by phoenix
    So, are you saying you have a problem with Zimbra or that it's working OK? I took your first post to be the steps to get it working on SuSE, did I misunderstand it?
    Everything is working fine... I just wanted to share my findings with other people who may be experiencing the same type of issue.

    --Tim

  7. #7
    phoenix is offline Zimbra Consultant & Moderator
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    Quote Originally Posted by timK
    Everything is working fine... I just wanted to share my findings with other people who may be experiencing the same type of issue.

    --Tim
    Phew, that's what I thought. BTW, welcome to the forums.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  8. #8
    timK is offline Junior Member
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    Smile

    Thanks

  9. #9
    jholder's Avatar
    jholder is offline Former Zimbran
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    Quote Originally Posted by phoenix
    John

    I think that's a post describing how he fixed the problem.
    HA
    Boy do i feel like a dummy.

    Like I said, took me a while to digest it. . . .and I guess it didn't digest right.

    Thanks Bill.

  10. #10
    jamesjr555 is offline Active Member
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    Unhappy i am getting port conflict problem in FC4. help me plz

    hai i got the same problems as :

    Checking for port conflicts
    Port conflict detected: 80 (zimbra-store)
    Port conflict detected: 443 (zimbra-store)
    Port conflicts detected! - Any key to continue

    and when i checked :
    .
    .
    tcp 0 0 :::80 :::* LISTEN
    tcp 0 0 :::22 :::* LISTEN
    tcp 0 0 :::443 :::* LISTEN
    .
    .
    in this post i found the solution for suse. but i am using FC4
    plz help me how can i resolve this one.
    thanks
    jamesjr

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