DNS lookup fails after 12.10 upgrade

[fourwood]

I upgraded to 12.10 yesterday and now I can't seem to resolve domain names. Connection Information seems to provide proper DNS server addresses from DHCP, but "ping" and "nslookup" both immediately fail with "unknown host" errors. I have tried external servers (google.com, ubuntu.com) as well as internal network host names, and none work. I can successfully ping IP addresses (internal and external). This occurs for both ethernet and wireless connections. Booting into Windows 7 on the same system does not have this problem.

[freerk]

Same problem; don't know what to do...

[bmaranville]

I had the same problem, noticed that /etc/resolv.conf had only 127.0.0.1 listed as a nameserver (I'm on a router connection and it should be 192.168.1.1)

I manually changed it but I'm not sure why the wireless handshake didn't set it properly, since my wifi connection shows the Primary DNS and Default Route are 192.168.1.1.

[ORF1000]

I'm having the same problem -- or at least a similar problem. My Windows partition still works, but not Ubuntu. Worked OK before the upgrade to 12.10. I'm wired only, not wireless on this box.

I thought the loopback address was supposed to change to 127.0.1.1 with theis upgrade, but it's still 127.0.0.1 in /etc/resolv.conf. Can that cause a problem?

I can ping other IP addresses on my network, but I can't ping outside the network. Can't ping Google, even using their IP.

My many previous ugrades have worked fine, but this one is perplexing. Any suggestions are appreciated.

[ORF1000]

I'm watching this thread to see if it gets us an answer.

[emanuelv]

Hi,

I had the same issue, after upgrading from Xubuntu 12.04 to 12.10, I could not resolve domain names anymore.

I simply followed this procedure found at http://askubuntu.com/questions/21201...er-doesnt-work

sudo dpkg-reconfigure resolvconf

And I answered Yes to the prompts

It fixed my issue

[jdthood]

emanuelv's solution is probably the solution for most of you. Somehow resolvconf did not get installed properly and is not able to update resolv.conf. Note that if a local forwarding nameserver is running then the right address is 127.0.0.1 (Precise) or 127.0.1.1 (Quantal).

[jdthood]

I simply followed this procedure found at http://askubuntu.com/questions/21201...er-doesnt-work

If that answer helped you then please vote it up.

[heke]

Hi,

I had the same issue, after upgrading from Xubuntu 12.04 to 12.10, I could not resolve domain names anymore.

I simply followed this procedure found at http://askubuntu.com/questions/21201...er-doesnt-work

It fixed my issue

Yes, I too had the very same dns fault after I updated watt-os -an ubuntu derivative - to version 12.10. This procedure fixed my issue too.