domain migration

[Barry Margolin]

In article <c68521$1j2q$1 at sf1.isc.org>,
 Eric Bordenave <eric.bordenave at ibgc.u-bordeaux2.fr> wrote:

> Hi,
> 
> I use a domain aaa.bbb.cc in a C class IP
> since few years.
> I must modify this domain with aaa.ddd.ff.
> But during few months, I must use the 2
> domains aaa.bbb.cc et aaa.ddd.ff.
> For example, if a user connect to the machine
> pc1.aaa.bbb.cc, he must be redirected to
> pc1.aaa.ddd.ff.
> 
> Do you know the better solution to do this ?
> Is there an easy way to create a link beetwen
> this 2 domains (like symbolic in unix) ?

There's a DNAME record, which is like CNAME but it applies to the whole 
domain.  But I don't know how widespread the support for it is.

A common solution is to use the same zone file for both zones:

zone "aaa.bbb.cc" {
  type master;
  filename "aaa.bbb.zone";
};
zone "aaa.ddd.ff" {
  type master;
  filename "aaa.bbb.zone";
};

Just make sure that all names in the zone file that refer to names in 
your domains are unqualified, i.e. it should contain:

pc1 IN A 1.2.3.4

rather than

pc1.aaa.bbb.cc. IN A 1.2.3.4

For the domain name itself, use "@" as the abbreviation.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***