Unable to resolve hostnames while using APT, what could be the problem?

Until two days before today my Ubuntu 10.10 Server updated fine.

The output of sudo aptitude update →

The output of sudo aptitude update after replacing the Ubuntu Central Archive's domain with the IP →

APT sources →

Hosts →

/etc/resolv.conf →

1 Answer

Your network configuraton is broken. If you are using a static IP you must manually add the DNS servers to /etc/resolv.conf . For example, to use google public dns service, append the following lines to the file.

nameserver 8.8.8.8
nameserver 8.8.4.4

I am assuming that your IP network is properly configured and you can ping those IPs .