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List:       qmail
Subject:    Re: two SMTPD's
From:       Chris Wilkes <cwilkes-qmail () ladro ! com>
Date:       2002-06-27 18:02:17
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On Thu, Jun 27, 2002 at 06:17:39PM +0100, Erwin Hoffmann wrote:
> >> Is there a way to bind the tcpserver on multiple addresses where 1 is 
> >> dynamic?
>
> Correct. Here is an attempt for a supervise run script:
> 
> #!/bin/sh
> QMAILDUID=`id -u qmaild`
> QMAILDGID=`id -g qmaild`
> HOSTNAME=`hostname`
> HOSTIP=`ifconfig eth0 | grep blabla | awk ....`
> exec tcpserver -vR -l $HOSTNAME  \
>         -u $QMAILDUID -g $QMAILDGID $HOSTIP smtp /var/qmail/bin/qmail-smtpd
> 2>&1

Keep in mind you'll have to HUP this every time your IP changes.

What's the poster's goal of having it bind to just a single dynamic IP
address instead of all?  Are you using DHCP on the mail server?

You could also put the mail server behind a NAT firewall and have it
handle the dynamic address part and have qmail just bind to the static
private IP address.

Chris
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