$ORIGIN

[womp]

I have two bind servers. One is the primary and the other is the slave. I am running bind 9.2.3. When named is restarted on the secondary it looks for updates from the primary. But when I look at the main domain zone my.site.com.zone, the first line in the file show $ORIGIN . (note the dot)
Then it prceeds to show $ORIGIN in various places in the zone file.
What exactly is this ORIGIN and what does it do?

 

[elgrandeperro]

It sets the default domain when you don't fully qualify
things with the end '.'. So if

$ORIGIN mydomain.com.
then

http://www in

A 1.2.3.4

would actually be

http://www.mydomain.com.

in A 1.2.3.4

But if your record was fully specified (ended with .)
then $ORIGIN is ignored.

gene