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Linuxhelp _ Technical Support _ DNS Hijacked on Ubuntu?

Posted by: JasonInUSA Jul 20 2014, 08:55 AM

Ubuntu 11.04

If I try to resolve a host name to IP of domains that don't exist, my box always resolves to

root@system:~# ping
PING ( 56(84) bytes of data.

root@system:~# cat /etc/resolv.conf

root@system:~# cat /etc/hosts localhost

# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Seems like a hijack of my DNS resolution. Not sure what to check for this. Any suggestions? Thanks.

Posted by: Robert83 Aug 21 2014, 03:22 AM


it could be possible that DNS queries are redirected ...

the Ubuntu machine is probably connected to a Router , I would check this Router and see what entries it has for DNS
Resolution and if it has iptables port forwarding for port 53 TCP and UDP .


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