change IMAP port from 143 to 8080

irishbitte · 11-25-2009, 12:04 PM

Hi folks,

Funny thing today, I'm trying to give plain old IMAP access to computers on a non-local network for my email server. Don't ask why, but it's the last resort.

Anyway, here's the thing. My server is SME server, and I cannot find for the life of me how to change the default IMAP port! There is nothing stored in

Code:

/etc/dovecot.conf

and I'm really beginning to pull my hair out.

I know SME server has things like

Code:

config setprop imap access public

for example, but I'm not finding anything about changing default ports.

Would really appreciate any help!

acid_kewpie · 11-25-2009, 12:33 PM

just change the "listen" port in dovecot.conf, not exactly tricky to track this down: http://wiki.dovecot.org/MainConfig

but.. 8080??? don't run it on 8080 without very good reasons, probably firewall / proxy related.

irishbitte · 11-25-2009, 01:01 PM

By your reply, you probably think I'm messing about, but this is the complete contents of

Code:

/etc/dovecot.conf

Code:

#------------------------------------------------------------
#              !!DO NOT MODIFY THIS FILE!!
#
# Manual changes will be lost when this file is regenerated.
#
# Please read the developer's guide, which is available
# at http://www.contribs.org/development/
#
# Copyright (C) 1999-2006 Mitel Networks Corporation
#------------------------------------------------------------
maildir_copy_with_hardlinks = no

As you can see, there is one uncommented line at the end. I'm really not sure what it's in aid of, but leaving it there. There is no conf file. Thats what has got me stumped! I'm really looking for someone with a good idea of SME server to point me in the right direction, and I don't mind hacking about either!

BTW:

Quote:

but.. 8080??? don't run it on 8080 without very good reasons, probably firewall / proxy related.

it's a school I'm working in, government provided net connection, they will open five ports I think: 80, 25, 8080, 443, and one other I can't think of. Believe it or not, all these ports are open on this box. So I really need to route IMAP through 8080, since it is the only port available to me!

irishbitte · 11-25-2009, 01:05 PM

Just in case you're interested:

Code:

[root@mail ~]# dovecot -n
# 1.0.7: /etc/dovecot.conf
Error: Missing auth section for server default
Fatal: Invalid configuration in /etc/dovecot.conf

Code:

 ps ax | grep dove
 5375 ?        S      0:00 /usr/bin/tcpsvd -v -i ./peers -c 400 -C 12:421 per host concurrency limit reached\r\n -l 0 0 imaps sslio -vv -/ ../imap/ssl -C imapd.pem -u stunnel /usr/bin/imapfront-auth /usr/libexec/dovecot/imap
 6939 pts/0    S      0:00 less /etc/dovecot.conf
 6967 pts/0    S+     0:00 grep dove

Seems SME has some way of running in runlevel 7 all the time, and all config is done using the type of commands I showed earlier, 'config blah blah', which modify database settings?

acid_kewpie · 11-25-2009, 03:56 PM

Hmm ok, I've never been near SME, so wasn't at all aware how closed it appears to seem. I would imagine you could add a listen directive to the dovecot.conf, but if not, you could look to do a nat with iptables, to redirect inbound hits at 8080 to 143 on loopback. Unsure how to configure iptables on SME formally, but it seems to happen under the covers a fair bit... e.g. http://wiki.contribs.org/Ipsec

irishbitte · 11-25-2009, 04:36 PM

You've put me on the right track, will get a chance to have a look at this tomorrow, thanks for your help and observations Chris! Never really thought of using iptables, thought that was more routing from one host to another! I'll let you know how it goes....