I am running Squid 2.5 STABLE 6 over Linux Enterprise 3 on IBM 345 Series Server having 1 GM ram.
Should I use internal DNS of squid for squid and my Internet Users? Or DNS should be on separate machine, I guess with 1 GB ram, it won't be a problem to use internal one, Squid handles about 50 requests / sec in peak times.
A lot of performance guides recommend a caching dns on the squid server, as it
reduces the load on the network and your dns.
A caching only bind is easy to setup, at least if you use a precompiled package, so I installed one just to check the difference.
In my case it did not really improve performance measurably. Depends on the load, I guess. System load is average (8...10GB traffic/day).
The seperate DNS used before via /etc/resolv.conf (and I still use them now as forwarders) have a fast network link to the squid machine and a decent performance.
It may be different if you have to use an probably overloaded ISP dns.
Regards, Hendrik Voigtl�nder
