On Thu, 30 Sep 2004, John wrote:
I have two squid proxies running on IBM X345 series servers under Red Hat
Enterprise Linux ES Version 3.0. My colleagues manage two QIP DNS servers
and since we introduced the squid proxies the DNS servers seem to be taking
a lot more DNS queries tan before. When I look at the squid logs, it seems
that every URL is being resolved by DNS rather than the DNS resolution
entries being cached locally by squid.
Then your ipcache settings are not correct.
By the default settings Squid caches up to 900 DNS lookups (90% of 1024).
My query is, should squid be caching DNS entries and not hammering the DNS servers and if so, how is this done? I should add that I am using squids own internal DNS resolver program not an external one.
Good.
What I would like to be able to do, through the squid config, is to set aside a certain amount of memory to hold cached DNS entries and to specify how long to keep them before deeming them to be "stale". Is this possible in squid and if so, how is it controlled?
See the ipcache_* directives.
Regards Henrik
Hello,
how about caching-only bind sitting on the same machines as the squid-daemons? resolv.conf points to localhost in this setup.
Deploying a local caching nameserver is mentioned in several performance howtos (after setting up the ipcache the right way of course).
Regards, Hendrik Voigtl�nder
