Re: How To Set Up Mail-out-only System ?

[Will Aoki <waoki@umnh.utah.edu>]

On Wed, Feb 11, 2004 at 01:41:13AM +0000, Nick Boyce wrote:
[want a send-only exim]
> The default Exim MTA is installed, and I've commented out the SMTP line 
> from inetd.conf, but there is a /etc/init.d/exim startup script that 
> comes with the Exim package, that has this :

>    # Exit if exim runs from /etc/inetd.conf
>    if [ -f /etc/inetd.conf ] && grep -q "^ *smtp" /etc/inetd.conf; then
>        exit 0
>    fi
>    [...]
>    case "$1" in
>      start)
>        echo -n "Starting MTA: "
>        start-stop-daemon --start --pidfile /var/run/exim/exim.pid \
>                                --exec $DAEMON -- -bd -q30m

If you remove the '-bd', exim will run as a daemon, but it will only
send mail out (processing its queue). It won't bind tcp/25 to receive
mail.

(Exim will use a different pid file, so the init script has to be
modified for that, too. I've attached one with the necessary
modifications.)

> Should I just remove the S20exim symlink from rc?.d ?

If you don't want exim to run as a daemon at all, then you should rename
those links to K20exim. The crontab fragment in /etc/cron.d/exim will do
a queue run four times an hour.

> That seems a bit of a kludge.  If this was NetBSD, I'd set something 
> like "exim=no" in somewhere like rc.conf ... is there a Debian 
> equivalent to that ?

If you don't want to drive it the System V-ish way, you could probably
do something like that:

add to exim init script:

|  . /etc/default/exim
|  if [ "$SHOULDIRUN = "no" ]; then
|    exit 0;
|  fi

then create /etc/default/exim and add:

| SHOULDIRUN=no

-- 
William Aoki  KD7YAF  waoki@umnh.utah.edu  /"\  ASCII Ribbon Campaign
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#! /bin/sh
# /etc/init.d/exim
#
# Written by Miquel van Smoorenburg <miquels@drinkel.ow.org>.
# Modified for Debian GNU/Linux by Ian Murdock <imurdock@gnu.ai.mit.edu>.
# Modified for exim by Tim Cutts <timc@chiark.greenend.org.uk>

set -e

# Exit if exim runs from /etc/inetd.conf
if [ -f /etc/inetd.conf ] && grep -q "^ *smtp" /etc/inetd.conf; then
    exit 0
fi

DAEMON=/usr/sbin/exim
NAME=exim

test -x $DAEMON || exit 0

case "$1" in
  start)
    echo -n "Starting MTA: "
    start-stop-daemon --start --pidfile /var/run/exim/exim.pid-q30m \
			    --exec $DAEMON -- -q30m
    echo "exim."
    ;;
  stop)
    echo -n "Stopping MTA: "
    start-stop-daemon --stop --pidfile /var/run/exim/exim.pid-q30m \
			    --oknodo --retry 30 --exec $DAEMON
    echo "exim."
      ;;
  restart)
    echo -n "Restarting MTA: "
    start-stop-daemon --stop --pidfile /var/run/exim/exim.pid-q30m \
			    --oknodo --retry 30 --exec $DAEMON
    start-stop-daemon --start --pidfile /var/run/exim/exim.pid-q30m \
			    --exec $DAEMON -- -q30m
    echo "exim."
    ;;
  reload|force-reload)
    echo "Reloading $NAME configuration files"
    start-stop-daemon --stop --pidfile /var/run/exim/exim.pid-q30m \
			    --signal 1 --exec $DAEMON
    ;;
  *)
    echo "Usage: /etc/init.d/$NAME {start|stop|restart|reload}"
    exit 1
    ;;
esac

exit 0