Extremely slow DNS lookups

[knockey]

Thanks for trying to help me.

@hollymolly: I've already tried this. In Debian Sid the corresponding file is /etc/modules.conf and actually I just had to uncomment the lines you mentioned. Afterwards I did an update-modules, but it didn't change anything... By the way I don't have these problems when I'm surfing somewhere else (e.g. at school) via WLAN. So I guess it must be something else that doesn't work.

@Nerderello: My /etc/resolv.conf says:

search
nameserver 192.168.1.1

192.168.1.1 is the IP of my router. As Dapper Dan and jeremy1701 have already pointed out, this must somehow be causing the problem, So maybe I can have my router yield the nameserver IP of my internet provider instead...

[Nerderello]

yup, as you already guessed, that IP address should be the one that your ISP (normally) is providing. I say "normally", because I've managed to add other ISPs's DNS to my config and it seems to work.

have fun
and merry Xmas
Nerderello

[knockey]

Partial success: I managed to speed up DNS lookups drasticly by manually overwriting /etc/resolv.conf with the nameserver IPs of my ISP!

The manufacturer of my router told me, though, that there wasn't anything I could change in the router settings because the router actually assigned the DNS addresses of my ISP via DHCP. I'm now thinking of a bash script that can be embedded in my WLAN script (provided by a colleague of mine). It should just overwrite /etc/resolv.conf with the nameserver IPs of my ISP. Can you tell me what such a script could look like (I'm not familiar with bash yet...)?

Merry Xmas!
knockey

[Nerderello]

have a look at the scripts in

/etc/ppp such as ipup

also have a look at scripts in /etc/sysconfig/network-scripts

have fun

Nerderello

[knockey]

A friend of mine advised me to take a look at /etc/dhclient.conf (as well as man dhclient.conf). I don't know whether this is a Debian-specific file, but at any rate I managed to overwrite the nameserver IPs in /etc/resolv.conf by adding the following statement to /etc/dhclient.conf:

supersede domain-name-servers 195.186.4.108; # nameserver IP of my ISP

As long as I only surf at home this actually solves my problem perfectly. But these settings have the disatvantage that nameserver IPs are always overwritten no matter where I surf, i.e. also at school where I've always gotten the correct nameserver IPs right away. These are now overwritten automaticly by the IP of my own ISP, which is again somewhat of a nuisance...

@ Nerderello: So the idea is that I put a script in ip-up.d that checks the current nameserver settings in /etc/resolv.conf and replaces them if necessary, am I right? I'll try. By the way I don't have a /etc/sysconfig on Debian Sid.