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How to save a modifed IP permanently in linux system by using ifconfig?

Posted on 2011-03-15
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Last Modified: 2012-08-14
Dear,

I have debian server with a default DHCP. I change the IP of the system by using ifconfig as below:

/ifdown eth0
 
/ifconfig eth0 192.168.1.2 netmask 255.255.255.0 up

It is getting the new static IP, but when reboot it will get back as dhcp and a new IP is assigned such as 192.168.1.100

I need to save the new IP in the system and stop the dhcp. how?

Nabil
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Question by:nabilhammoud
3 Comments
 
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Insoftservice earned 175 total points
ID: 35136071
hi,

vi /etc/sysconfig/network-script/ifcfg-eth0

change bootproto from dhcp to static.
assign the ip to it.
u can do the same thing via
cmd =>  neat

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LVL 16

Assisted Solution

by:Blaz
Blaz earned 75 total points
ID: 35147124
To further clarify insoftservice's suggestion the file /etc/sysconfig/network-script/ifcfg-eth0 should look like

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=none
NETMASK=255.255.255.0
IPADDR=192.168.1.2
USERCTL=no
PEERDNS=yes
TYPE=Ethernet
IPV6INIT=no
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Author Closing Comment

by:nabilhammoud
ID: 35154387
THX
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