Dynamic update of virtual hosting domains
Peter Rabbitson
rabbit+list at rabbit.us
Tue Jan 29 10:37:40 UTC 2008
Hello,
I am hosting a number of domains by means of DNS based hosting. The domain
zones look identical:
$ORIGIN <domain>
@ soa ns1.<hostingdomain>. ....
@ ns ns1.<hostingdomain>.
@ ns ns2.<hostingdomain>.
@ mx 10 mx1.<hostingdomain>.
@ mx 20 mx2.<hostingdomain>.
www cname @
@ a <IP of web server>
Sometimes I need to change <IP of web server> automatically, however enabling
dynamic updates on all (currently 9) virtual host domains seems ugly. I know I
can use the DNAME RR, but from my googling it seems that it is not favored in
todays infrastructure. Is there a way to organize things in such a manner, so
that the A record can point to a single place which can be then dynamically
updated?
Thank you for any pointers.
Peter
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