[Linux-HA] What About The DNS Server

[Rubin Bennett]

ISC Bind can easily do multiple DNS servers, with shared databases
betwixt them.

DNS is very easy to replicate... why not have more than one?

Rubin

On Tue, 2008-02-05 at 19:34 +0000, James Ellis wrote:
> I am trying to design a High Availability website.  This is what I am thinking for architecture:
>  
> Apache Web Server - One server used for load balancing.  A second slave server (inactive) as a failover and Linux HA (Heartbeat) to trigger the failover. 
> Cluster of Tomcat Servers - Failover handled by cluster.
> MySQL Cluster -  Failover handled by cluster.
>  
> Two questions:
> 1) Is the above architecture "standard"?
> 2) Isn't the DNS server still a single point of failure?  A request comes in for http://www.foo.com which is translated by a DNS server as 192.168.1.1 which maps to the Apache server.  So if the DNS server fails...how would the Apache server ever get the request?  
> Your thoughts/help are appreciated.
>  
> Jim_______________________________________________
> Linux-HA mailing list
> Linux-HA at lists.linux-ha.org
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> See also: http://linux-ha.org/ReportingProblems
-- 
Rubin Bennett
rbTechnologies
rbennett at thatitguy.com
http://thatitguy.com
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