domain name entries in a zone

[David Botham]

bind-users-bounce at isc.org wrote on 05/28/2004 12:42:11 PM:
> Hello All,
> 
> I would like to start some conversations around valid domain name =
> entries in a zone file.  It would seem to me that out of the more common 
=
> records the only valid entries for a domain name would be a SOA record, 
=
> some MX records and some NS records.  We have several customers that =
> would like an A record for the domain name.  So that when some enters =
> foo.com in the browser the user would actually get to the web site.  =
> Some customers would even like a CNAME record for the domain name, so =
> that they could have a primary domain and have other domains CNAME to =
> the primary domain.  I have tested this in BIND 9 and it doesn't seem to 
=

By now you have read the other posts on why the CNAME idea is not going to 
work.  However, a work around might be to use a generic zone db file for 
all the "like" domains.  This work around only works if all the domains in 
question are hosted on the same name server.  Here is a sample generic 
zone db file that might work (there is also a recipe for this in Cricket's 
Cookbook):

;Generic db file for all domain names at web site on IP address 
10.10.10.1.

$TTL 1d
@               IN      SOA ns1.foo.com.    postmaster.foo.com. (
                                2004050701      ;Serial as yyyymmddnn
                                10800           ;Refresh Interval
                                3600            ;Retry Interval
                                604800          ;Expire Timeout
                                3600)           ;Negetive Caching TTL

;Name Servers
@                               IN      NS     ns1.foo.com.
@                               IN      NS     ns2.foo.com.

;Mail Exchangers


;Other Zone Data
@                               IN      A       10.10.10.1
www                             IN      CNAME   @


hth,

Dave...


> like the CNAME record for a domain.  I have found very little about this 
=
> topic on the web so I figured this list could provide me some direction.
> 
> Thanks,
> Preston
> 
>