CNAME problem

[Joseph S D Yao]

> I'd like to replace the current DNS with the Linux box.  For the
> migration, I was thinking of creating legal A entries, using hyphens
> instead of underscores.  Then create the underscored hosts as CNAME
> entries pointing back to the A entries for backward compatibility.
> Once the server names are changed to legal hostnames, then I would
> phase out the CNAME entries.
> 
> Sample:
> 
> ; host
> server-1	IN A	192.168.x.x
> ; alias
> server_1	IN A	server-1
		   ^ Wrong.
Did you mean:
server_1	IN CNAME	server-1
?

> I'm not sure what I'm doing wrong.  I've tried using the full
> canonical name for both the alias and translated host for the CNAME
> entry, to no avail.  I've tried setting the "check-names warn" under
> the zone entry for my domain in /etc/named.conf, and I do get an pass
> entry like so in the log:
> 
> "owner name "server_1.<domain>.com" IN (primary) is invalid -
> proceeding anyway"

You have the right idea.  You can also turn them off with "ignore"
instead of "warn".  You need to add this to ALL zones; OR you can put
into the options{} statement:
	check-names	master	ignore;

--
Joe Yao				jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support					EMT-B
-----------------------------------------------------------------------
This message is not an official statement of COSPO policies.