On 14/07/10 17:29, Kebba Foon wrote:
Hi List
i have been having issues with my dns server for a while now,
my server suddently stops answering to queries. i notice that this
happen when every my recursive clients is more that a thousand, as per
the result of rndc status. any help about this will highly be welcome
I've only ever seen this behaviour as a result of
underlying network connectivity problems.
If you can find out some of the following information,
you may be able to see better what's happening:
- what the typical count of recursive clients is on
your server;
- what limit on recursive clients is in effect (by default
or explicitly configured) on your server;
- whether changing this limit simply "moves the problem"
to appear to occur at the new limit (which would be
a fairly dependable indication that the underlying
cause is external to named);
- how frequently your server behaves in this way;
- how long this behaviour lasts on each occasion;
- what else is happening when you see this behaviour,
- as shown by log files, customer complaints,
or other sources of information.
I hope this helps.
Niall O'Reilly
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