Hi--
On Oct 23, 2009, at 9:18 AM, Sean Cavanaugh wrote:
worse, it's illegal.
how is this illegal? if you are residing your domain on a hosting
service, this makes sense to me. Granted its bad form and should
have an A record to the host for the main domain record, but if i
had control over "otherdomain.com" and not "example.com" and had to
change the IP address, "example.com" would be dead until i was able
to reach the owner of that domain and have them change their DNS info.
You aren't supposed to use CNAMES for anything found in other RR's; in
particular, you should always use an A record with the hostnames used
for nameservers (ie, have an NS record), because you are supposed to
be using the canonical name rather than an alias.
See:
http://docstore.mik.ua/orelly/networking/sendmail/ch21_03.htm#SML2-CH-21-SECT-3-2
You might also find a discussion of webserver redirects and the like
interesting:
http://www.aitechsolutions.net/cname-serveralias-redirection.html
Regards,
--
-Chuck
PS: It's odd where google pulls up references to fairly canonical
docs, sometimes. I'm not sure I even recognize "ua", and I suspect I
deal with two-letter ISO 3166 country names more than most folks do.
Maybe Ukraine? :-)
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