I fixed my error "sudo: unable to resolve host lian-ubuntu-beta" by making entries in System->Administration->Network such that afterward the files /etc/hostname and /etc/hosts read:
$ cat /etc/hostname lian-ubuntu-beta [EMAIL PROTECTED]:~$ cat /etc/hosts 127.0.0.1 localhost lian-ubuntu-beta 127.0.1.1 lian-ubuntu-beta 192.168.1.103 lian3.foxgulch.net lian3 # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts Specifically System->Administration->Networking Unlock Then Authenticate then In the Hosts Tab highlight the "127.0.0.1 localhost" line click properties make it read IP address: 127.0.0.1 Aliases : localhost lian-ubuntu-beta In the General Tab Hostname: lian-ubuntu-beta Domain Name: (nothing or blank) -- sudo shouldn’t ABSOLUTELY NEED to look up the host it’s running on https://bugs.launchpad.net/bugs/32906 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs