Anderson said:
I'd like to setup the the secondary web server in different location for
backup purpose. I'm currious what entries need to be made in the DNS server
so the secondary will take over in case the primary web server not
available. I appreciate any comments, and help.
You cannot really do this with DNS.
If you add the entries, then it will be given
to clients.
If you don't add the entry it won't be available
if the main server fails -- and wouldn't help
probably anyway (with HTTP clients) since the
clients tend to pick whichever is first (or what
seems the "best") and if that one is DOWN, they
don't fail over to the other.
You must either buy a product that handles such
fault tolerance (e.g., NLB clustering) or you must
write a process to monitor the web server and
update DNS if it does down (remove it and add
the other.)
--
Herb Martin
Anderson said:
I'd like to setup the the secondary web server in different location for
backup purpose. I'm currious what entries need to be made in the DNS server
so the secondary will take over in case the primary web server not
available. I appreciate any comments, and help.
