Exim /Dovecot Listen on secondary ip address

[PV-Patrick]

Is it possible to have Exim / Doevcot *listen* on a secondary IP address other than the main IP address that's eth1. I want to have it listen on say the IP address that's bound to eth1:cp1; thus not disclosing the main server IP to any services. This is not for sending / outgoing emails, only incoming.

I have been searching around the forums and the net for some time and there doesn't seem to be a definitive solution for this. It seems like Exim is binding to all interfaces by 0.0.0.0 and I don't know how to stop that. When I do a netstat for say port 25, it only shows the main server ip as listening on that port.

Any help would be appreciated, thank you!

cPanel 11.42.1

 

[cPanelMichael]

Hello

You should be able to utilize the "local_interfaces" option in the Exim configuration to force it to listen on a specific IP address. Ensure you use "WHM Home » Service Configuration » Exim Configuration Manager » Advanced Editor" to make the changes. As for Dovecot, you could add the "listen: IP" entry to the configuration file. You can edit the following file for local modifications to the Dovecot configuration:

/var/cpanel/templates/dovecot2.2/main.local

Note: You can copy this file from /var/cpanel/templates/dovecot2.2/main.default if it does not exist. After making the custom modifications, you must run:

/scripts/builddovecotconf

Thank you.

 

[PV-Patrick]

You're the man Michael! I have spent so many hours trying to figure this out before making this post and I knew it had to be something easy!

For anyone else wanting to do this, with the advanced Editor within cPanel. You will want to add a new field through the editor in the first section.

Combined Exim Configuration -> Section: CONFIG. Scroll down to the bottom of that section and click the add additional configuration setting and then put in the local_interfaces and the IP you desire.