[Charlug] E-Mail & DNS

[Pierre Abbat]

On Friday 26 January 2007 04:36, Don Parris wrote:
> I am reviewing a book on Linux e-mail servers.  Part of my review
> methodology involves following the book's instructions.  I have a potential
> dilemma since, when I installed the various systems, I called my local
> domain = matheteuo.local
>
> I also recently setup the dyn-dns service using the domain =
> matheteuo.homelinx.net
>
> I thought I would change my boxes to use the matheteuo.homelinux.net
> domain. I used the Networking admin tool in GNOME/KDE to give my boxes the
> new domain name (all of these had been empty, btw), but when I rebooted the
> domain name boxes were empty again.  Thus, it appears that the domain name
> editing did not take effect.  Do I need to add the dyn-dns server as a DNS
> server (currently using my ISP's DNS servers for lookups)?

Your mail server looks for MX records. You can't put MX records in /etc/hosts, 
so if you are going to deliver mail to different boxes in matheteuo.local, 
you need to run your own nameserver.

When I set up this box, I decided to use powerdns. It has two parts, a 
database where I store my local box DNS records and a caching nameserver. 
BIND was altering my local files and I didn't like that.

Pierre