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I am new to ubuntu. When I use the following command nslookup askubuntu.com it gives following output:

Server: 127.0.0.1 Address: 127.0.0.1#53

Non-authoritative answer: Name: askubuntu.com Address: 198.252.206.24

My question is why it is showing my IP address as default DNS server. Does ubuntu contain any DNS service by default. How I can change the default DNS server.

pks11
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1 Answers1

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I think network-manager uses dnsmasq as local DNS server. So that's why it is showing your localhost IP as DNS server.

To change that, look at How can I disable the DNS that Network Manager uses?

This local DNS server (dnsmasq) will use your router DNS server if you use dhcp or whatever DNS server is configured in the router (dhcp) configuration.

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solsTiCe
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  • thanks solsTiCe If dnsmasq is local DNS serer then disabling it should result in dns query failure. Why nslookup still showing my IP address – pks11 Dec 01 '14 at 05:08
  • If Ip of a domain cache in dnsmasq cache is changed but dnsmasq cache entry is not expired what will happen. – pks11 Dec 01 '14 at 07:03