Random DNS Failure

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xur17
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Random DNS Failure

Post by xur17 » Fri Jun 29, 2012 2:24 pm

I have a Thinkpad T61 that I am using with Linux Mint 13 Cinamon 64bit to connect using an Intel 4965agn to a wireless router. I am having the following issue with all wireless routers I connect to, EDIT: and for all wired connections.

DNS resolution randomly stops working until disconnect and reconnect to the internet. If I attempt to browse the internet, I am given a dns resolution error. I can still ping hosts by ip address, but dns resolution does not work.

I have noticed the following error when this occurs in syslog:

dnsmasq exited with error: Network access problem (address in use; permissions; etc) (2)

This leads me to believe that dnsmasq is crashing and causing this issue. Any recommendations on how to fix this, or what to look for?

Gutknecht
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Re: Random DNS Failure

Post by Gutknecht » Mon Jul 09, 2012 9:03 am

I am having similar issues with a Compaq Pressario I first thought it had to do with the Broadcom adapter, but I can ping router fine, it is definately a DNS resolve issue. I now have found my Aser Aspire One netbook also has the problem. There is an upstream bug report on this for Ubuntu, but it didn't look like it was getting much traction. I tried some of the suggested work arounds and no luck so far. Only help is if you disconnect or disable your connection and reconnect it starts working again. Still looking for a permanent solution. Let me know if you have any luck....

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DrHu
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Re: Random DNS Failure

Post by DrHu » Mon Jul 09, 2012 12:54 pm

https://bugs.launchpad.net/ubuntu/+sour ... bug/725041
--possibly it is a dnsmasq error/bug if you need to use your own DHCP server

dnsmasq..
http://archive09.linux.com/articles/149040
http://wiki.debian.org/HowTo/dnsmasq
  • Dnsmasq is a lightweight, easy to configure, DNS forwarder and DHCP server. It is designed to provide DNS and optionally, DHCP, to a small network. It can serve the names of local machines which are not in the global DNS
Otherwise, it may be a wireless disconnect issue with your particular router, or you could be checking the howtos available on the Internet in reference to setting up a LAN/home network or network setups in Linux..

Wireless setups. Linux..
http://www.linuxhomenetworking.com/wiki ... Networking

NIC..
Intel 4965agn
https://bugs.launchpad.net/ubuntu/+sour ... bug/149214
http://www.linwik.com/wiki/configuring+ ... controller
http://www.linuxine.com/story/ubuntu-in ... -sx2840-01

http://digg.com/newsbar/topnews/Intel_s ... he_4965AGN
Intel's driver for that device..

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