I need to setup Open DNS but i cant edit resolv.conf

Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)

DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

nameserver 127.0.1.1

search gateway.2wire.net

linux dns

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edited Oct 17 '13 at 16:31

yakiang

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asked Oct 17 '13 at 16:18

Ricky Wilson

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sudo vi resolv.conf – meda Oct 17 '13 at 16:21

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2 Answers

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Your system uses resolvconf, so the resolv.conf file is replaced by a symbolic link to /etc/resolvconf/run/resolv.conf and resolvconf dynamically generated the file. That's why DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

To properly update the information in the file, you can put the dns-* parameters in /etc/network/interfaces e.g.

auto eth0

iface eth0 inet static

address 33.33.13.10

netmask 255.255.255.0

gateway 33.33.13.1

dns-nameservers 33.33.13.1 12.34.56.78

dns-search example.com

Then, you can update the dns-* info by

$ resolvconf -d eth0

$ resolvconf -a eth0

Or you can do ifdown & ifup and resolvconf -d, -a will happen behind the scenes.

Note: sometimes I find resolvconf -u doesn't work. I don't know why

You should read man resolvconf. There's more information about all this.

TIP: if you want to update /etc/resolv.conf manually, you can remove the symlink and create /etc/resolv.conf by hand. This way, the file won't get updated from resolvconf ever.

$ rm /etc/resolv.conf ;# to remove the symlink

$ vi /etc/resolv.conf ;# to create a regular file