Gerardo,
Thank you for your reply. It is a good idea. I just need to check if it impacts the application as
it may be that it e-mails itself on port 25. I'll check.
Yuri
Gerardo Juarez-Mondragon wrote:
Yuri,
Another possibility: why not configure the 'killer' MTA application to
use other ports: 20025 instead of 25, etc. (adding 20000 to each seems
like a good idea). After all, you don't use it. It's logical it should
sit there, but out of the way. The other road is much more bumpy, I
can assure you.
Gerardo
On Fri, Nov 6, 2009 at 3:54 PM, Yuri Csapo <ycsapo@xxxxxxxxxxxxxxxxxx> wrote:
Hi all, I've an unusual (for me) problem:
- I'm running RHEL release 3 (taroon). I know, I know. Nothing I can do -
it's the application vendor's requirement.
- This application also MUST have some Sun MTA installed and running, even
if we don't use it - and we don't. This MTA sits on ports SMTP, SSMTP, IMAP
and POP, HTTP and HTTPS and provides services to the application only, NOT
TO THE OS.
- We still need to be able to mail admin stuff such as logwatch and others.
RedHat comes with sendmail and we are trying to keep this box as close as
possible to default configuration.
- The sendmail queue runner by itself is not enough because I can't find a
way to make it expand aliases - root messages end up going to
root@xxxxxxxxx, which is not where I want them to go.
- Sendmail won't start because the silly Sun app is squatting on port 25.
- If I use DaemonPortOptions to tell sendmail to listen on a different port
then I get sendmail to start but I haven't found a way to make the queue
runner send to that port on localhost. The runner ends up connecting to port
25, which is the Sun MTA, who proceeds to deny the connection.
Does anybody know how to do one of the following:
- make the sendmail queue runner expand aliases
- make the queue runner send to a port other than 25
- make sendmail behave like in the good old days and forgo the need for the
queue runner
Some options that have crossed my mind but which I'm trying to avoid:
- redirect port 25 using iptables
- modify sendmail's source and recompile (ugh)
- give up on sendmail and install exim or postfix or something that can be
understood by someone who hasn't read the Bat Book in the last 6 years and
who is not particularly inclined to read it again.
Any other ideas?
TIA
Yuri
--
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone: (303) 273-3503
Fax: (303) 273-3475
Email: ycsapo@xxxxxxxxx
Please use the following link to open a service request:
http://helpdesk.mines.edu
===========================================
With a PC, I always felt limited
by the software available.
On Unix, I am limited only by my knowledge.
--Peter J. Schoenster
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--
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone: (303) 273-3503
Fax: (303) 273-3475
Email: ycsapo@xxxxxxxxx
Please use the following link to open a service request:
http://helpdesk.mines.edu
===========================================
With a PC, I always felt limited
by the software available.
On Unix, I am limited only by my knowledge.
--Peter J. Schoenster
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