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> Slow DNS lookup (no IPv6-issue???)
Mastov
post Jul 6 2008, 05:32 AM
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Hi,

my dns lookups take several (~ 6-10) seconds every time. I tried a lot of things, but now I ran out of ideas. What I tried up to now is:

- Deactivate IPv6: The most common advice about slow dns lookups didn't work in my case. IPv6 is already successfully deactivated (at least "lsmod | grep ipv6" claims that), but the problem continues. Also deactivation IPv6-lookups for certain programs (like firefox or ssh) doesn't help.
- Use other nameservers: Changing the nameserver in /etc/resolv.conf to other ones didn't change anything as well. Besides, the original nameservers are working well on other systems!
- Adding "option timeout:1" to or removing "domain ..." or "search ..." lines from the /etc/resolv.conf file: Also didn't help...

Any further ideas?

Thanks!
Chris

PS: Distro "Debian Lenny Amd64" out of the box, only ndiswrapper installed and WLAN configured
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thilak
post Jul 20 2011, 12:29 PM
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For the good reverse DNS lookup ,
I visit this site http://www.whoisxy.com/domain-to-ip.aspx
It has the best information of IP address, IP address to domain, domain name to IP,domain name, DNS lookup., IP address lookup and ping test !!!
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