servfail only for a zone

[Charles Swiger]

On Jul 13, 2015, at 10:34 AM, Lucio Crusca <lucio at sulweb.org> wrote:
[ ... ]
> Yes the zone failed to update, I know because if I raise the seqno @ns1, it tries to update and it keeps failing. I don't understand why it fails. I doubt a Cisco router is to blame here because ns1 and ns2 are two guests of the same host, no routers between them.

Note that one should put your nameservers on different physical hardware to ensure high availability.

(Different HW located in different datacenters using different upstream network providers, ideally....)

Regards,
-- 
-Chuck

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