Primary and Secondary

Jon Booth jon at lucidlogic.com
Mon Jun 25 23:54:17 UTC 2001


When is a secondary server used in a request. Is it only after the primary
is unreachable or timesout, or are both contacted and the quickest to
respond wins?

Because I was thinking. A way to have redundancy in web servers would be
to have two webservers A and B. A has the primary nameserver and webserver  
for the domain which returns its own IP for www. B has the backup
webserver and secondary nameserver and returns its own IP address.

Both could be on different networks

No doubt this has been thought of before. Is anyone here doing it?

Jon



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