shorten cache ttl?

Marten Lehmann lehmann at cnm.de
Thu Jul 1 15:15:01 UTC 2004


Hello,

> Doesn'y apply, "max-cache-ttl" is about existing records.
> 
> Try "max-ncache-ttl" which according to the documentation :
> "To reduce network traffic and increase performance the server stores negative answers. max-ncache-ttl is used to set a maximum retention time for these answers in the server in seconds. The default max-ncache-ttl is 10800 seconds (3 hours). max-ncache-ttl cannot exceed 7 days and will be silently truncated to 7 days if set to a greater value."

I was setting both to 0 and restarted BIND (I really stopped BIND 
completely and started it again). The nameservers for .com-delegations 
(e.g. a.gtld-servers.net) respond with the correct NS-records. My 
caching BIND does not.

Regards
Marten


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