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

[timK]

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...

Checking for port conflicts
Port conflict detected: 25 (zimbra-mta)
Port conflict detected: 25 (zimbra-mta)

Typing (as root):

netstat -na

displayed

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:

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:

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

[jholder]

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

[phoenix]

John

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

[timK]

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 :

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 :

mail:~ # telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 mail.mymailserver.com ESMTP Postfix

--Tim

[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?

[timK]

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

[phoenix]

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.

[timK]

Thanks

[jholder]

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.

[jamesjr555]

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