7 Dec
2004
7 Dec
'04
9:46 p.m.
Eric Dondelinger wrote:
Is that a hardware router or a Linux box?
Those 15 seconds certainly are not normal.
It is a Zyxel 650HW.
I just tried here with the same request (I'm on
P&T ADSL):
192.168.1.5 (my work PC):
i.e. the reply was instantaneous. The resolver configured on this
machine is 192.168.1.1, which is my own router (Linux PC) with it's
own bind9. No, that host wasn't in cache, as I certainly didn't
visit www.athome.lu today (and probably not anytime in ages, if
ever).
I just had a few tries, response time was 0.03-0.14 seconds. As I said,
it is not systematic, just kinda frequent.
On the external interface of the router it looks like
this:
As I have a HW router, I am unable to see what is happening there :-(
What kind of router? Firmware? Just in case
there's anything to
be found about that particular model...
ZyNOS F/W Version: V3.40(IT.4) | 11/20/2003
DSL FW Version: Alcatel, Version 4.9.10
You could possibly try to manually enter DNS resolvers
into the
router config? Those from VO certainly, those from P&T are also
accessible from the outside: 194.154.192.101 and 194.154.192.102
I also thought about caching DNS locally, with dnsmasq
(http://thekelleys.org.uk/dnsmasq/doc.html) for example. Not a solution
for seldomly used names, but at least for the frequent ones. pop.vo.lu
is a good candidate, it also sometimes takes ages to be resolved
(although Korn is looking it up every 5 minutes).
Thanks,
-pu