domain.ext. vs @

Nate Campi nate at wired.com
Thu Jan 17 18:18:45 UTC 2002


On Thu, Jan 17, 2002 at 11:28:59AM -0500, Joe Kattner wrote:
> 
> The @ is shorthand for the domain name, so in you're example there would be
> no difference.

That is, unless the zone file looks like this:
  
  $TTL    4H
  @       IN      SOA     ns.foo.com. root.foo.com. (
                                1         ; Serial
                               1H         ; Refresh
                              20M         ; Retry
                               4W         ; Expire
                               1H )       ; Negative Cache TTL
  ;
  
  @       IN      NS      ns.foo.com.

  $ORIGIN subdomain.foo.com.
  
  @       IN      A       127.0.0.1
  
Now guess what @ in the A record stands for? subdomain.foo.com, not
foo.com.


> 
> -----Original Message-----
> From: Julius Caesar [mailto:jcaesar at bamva.com]
> Sent: Thursday, January 17, 2002 4:26 AM
> To: comp-protocols-dns-bind at moderators.isc.org
> Subject: domain.ext. vs @
> 
> 
> 
> Hello,
> 
> Could someone tell me the difference between the following
> entries in the zone file for zone 'domain.tld':
> 
> @           IN  A  ip.ad.dr.es
> domain.tld. IN  A  ip.ad.dr.es

-- 
Nate Campi | Terra Lycos DNS | WiReD UNIX Operations

One of the main causes of the fall of the Roman Empire was that,
lacking zero, they had no way to indicate successful termination of
their C Programs. 



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