bind on standalone pc

[Jens]

Matthew Thompson <matthew.thompson at lrfairplay.com> wrote:

> > And where do I put my CNAMEs if I don't have a master zone?
> 
> Get BIND up and create a zone of ".internal", set your domain on the
> machine's host settings to ".internal"

Normally I set the domain of my PC to that of the provider. If I'm 
connected to provider1, my domain is provider1.com, if I'm connected 
to provider2, my domain is provider2.com. Therfore, in the first case 
the name SMTP is interpreted as SMTP.provider1.com or in the other 
case as SMTP.provider2.com.
Now I can define a alias (CNAME) where SMTP.provider1.com points to 
mailrelay.provider1.com and SMTP.provider2.com points to 
smtpx.provider2.com.

Currently, I have defined a zone of "com." to do that but that is not 
very satisfying.
 
> Don't forget to change the serial number of the zone.

Why that?

Jens