On Tue, 7 Sep 2010, Atom Powers wrote:
On Tue, Sep 7, 2010 at 11:53 AM, Matthew Barr <[email protected]> wrote:
On Tue, 7 Sep 2010, Brodie, Kent wrote:
We actually put DHCP, DNS, and LDAP on single boxes, and considered those
our primary boot first boxes. Almost nothing would work w/o those
services. Each of them has some reasonable highly available option, and
made life easy.
How do you make DNS highly available (or load balance it)?
Most clients use the first server on the list and if it doesn't answer
then it tries the next etc. But the time-out makes some operating
systems (Windows) very sad.
have multiple DNS servers and make the IP address that clients use be a
VIP that moves from server to server. With Linux this is pretty simple to
do with linux-ha (heartbeat). The clients think that they only have one
server to talk to, but that server is always up even if one box fails.
David Lang
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