The error entries above indicate a clear configuration problem on your side, not a bug in our tools.
dl.google.com is: dl.google.com is an alias for dl.l.google.com. dl.l.google.com has address 209.85.148.91 dl.l.google.com has address 209.85.148.93 dl.l.google.com has address 209.85.148.190 dl.l.google.com has address 209.85.148.136 dl.l.google.com has IPv6 address 2a00:1450:4001:c01::be But apt-get is trying to access it and archive.canonical.com using "91.189.91.14" which is one of the many mirrors behind us.archive.ubuntu.com. What this tells me is that you somehow configured apt to use "archive.ubuntu.com" or "us.archive.ubuntu.com" as a proxy server, creating this apt problem and likely many others on your system. There are quite a few places where you could have set that proxy, the easiest way to find it would be to look for that IP, or archive.ubuntu.com or us.archive.ubuntu.com throught /etc (using grep or a similar tool) to find where it's been set, then unset it, reboot the system (to wipe out the environment variables) and try again. Marking this bug invalid as it's a user configuration problem, not an actual bug. ** Changed in: dnsmasq (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070643 Title: Quantal DNS resolution rejects apt-get To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1070643/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs