Ubuntu wont keep Static IP on restart

[bruceleeroy]

Hey guys,
I assigned my computer a static IP and 2 DNS servers for it to use.
Everything works perfectly except when I reset the computer it reverts back to the Automatic DHCP settings but it does keep the 2 DNS servers.

I followed the instructions to add the 2 DNS servers in the resolv.conf file and that worked perfectly. Unfortunately I cant figure out how to make the IP address save.

Any help would be greatly appreciated.

[superprash2003]

try inserting the static ips to your /etc/network/interfaces file

for reference : http://www.prash-babu.com/2008/11/ho...-in-linux.html

[bruceleeroy]

Thanks for the link.
I followed the instructions but ran into two problem:

He says to type sudo gedit /etc/network/interfaces
and to find this line in the document:

iface eth0 inet dhcp

In my document I don't have that line instead mine reads:

auto lo
iface lo inet loopback

So I replace the iface part anyway with my IP address, netmask, and gateway.

But I figure none of that did anything because when I type in the following instructions this is what I get:

chris@otacon:~$ sudo /etc/init.d/networking restart
 * Reconfiguring network interfaces...                                          SIOCDELRT: No such process
                                                                         [ OK ]
chris@otacon:~$ sudo ifdown eth0
ifdown: interface eth0 not configured
chris@otacon:~$ sudo ifup eth0
chris@otacon:~$

Once I restart the connection it still has its default IP address and not the static one I assigned.

[chickpea]

Hi, bruceleeroy.
It doesn't seem your "interfaces" file has lines that configure eth0(your ethernet network interface card). Mine looks like below:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 192.168.1.2
netmask 255.255.255.0
gateway 192.168.1.1

Just copy & paste these lines to your "interfaces" file and change the values for "address", "netmask", and "gateway" as you like. Then sudo ifdown eth0 && sudo ifup eth0. It will work.