Hello,
I have a slow connection and every bit saved is precious! So I installed
dnsmasq, but when I run dnsmasq -dq and watch what's happening, I can see
two things that surprise me:
-> only few queries really benefit from the dnsmasq cache, and I think it
happens when the name is actually a CNAME, but I'm not sure yet.
eg:
* dig www.google.com
* dnsmasq forwards the query then fills its cache with www.google.com
being a CNAME to www.l.google.com, and an entry with the IP
www.l.google.com resolved to
* but if I issue again the dig command, dnsmask forwards again the
query even though the entries haven't yet expired
Note: I've just tried on an other computer(at home, other OS, other ISP...)
and I don't see this behaviour, I leave the question untouched, since I may
have missed a configuration option? I'll investigate on this further
tomorow and report back.
-> dnsmasq is supposed to help me saving bandwidth, but when it forwards a
query, it forwards it to every nameserver (well, most of the time at
least), isn't there a way to make it forward to only one server at a time,
and to try an other one only if there was a problem (not found, server
down..)
At this point, if you combine the two above points, I'm in the situation
where I have more dns traffic with dnsmasq than without it! and it's quite
irritating...
Thanks for your help.
sam
