192.168.122.1 runs dns, and the command
dig @192.168.122.1 www.google.com returns valid ip addresses, so dns is working and reachable.
tracepath www.google.com returns
gethostbyname2: Host name lookup failure.
tracepath 22.214.171.124 (www.google.com) yields valid results, so the default route is set up correctly.
route -n outputs:
Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.122.1 0.0.0.0 UG 100 0 0 eth0 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
And the applicable portion of
auto eth0 iface eth0 inet static address 192.168.122.5 netmask 255.255.255.0 broadcast 192.168.122.255 gateway 192.168.122.1 dns-servers 192.168.122.1
No firewalls are currently running.
I would think, given these settings, that
tracepath www.google.com would contact
192.168.122.1 for dns information, which is verified to be working and reachable.
What should I do next to find out why the tracepath command returns
gethostbyname2: Host name lookup failure?
Edit (more info)
/etc/resolv.conf is empty. Ubuntu 12.04 uses a new subsystem,
resolvconf, that autogenerates resolv.conf data in
resolv.conf.d files (
passwd: compat group: compat shadow: compat hosts: files dns networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis
127.0.0.1 localhost 127.0.1.1 hostname # 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