Change IP address on CentOS VPS Server

In this tutorial, we'll give you a step by step description on how to change your server's IP address on CentOS 5/6. Remember that you need to be root user or have root privileges to perform this commands.

1. Confirm your current IP address:


ifconfig eth0


You should have an output like this:


eth0 	Link encap:Ethernet HWaddr 00:16:3C:2A:76:60
 	inet addr: Bcast: Mask:
 	inet6 addr: fe80::216:3cff:fe2a:7660/64 Scope:Link
 	RX packets:3287516 errors:0 dropped:0 overruns:0 frame:0
 	TX packets:1961807 errors:0 dropped:0 overruns:0 carrier:0
 	collisions:0 txqueuelen:1000
 	RX bytes:1048333886 (999.7 MiB) TX bytes:2596365984 (2.4 GiB)


Pay special attention to the values of inet addr, Bcast and Mask. This reflects your current IP addressing.


2. Change the values with the new IP address

You need to edit the ifcfg-eth0 interface in order to change the IP address and the corresponding networking values.


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


Edit the values of IPADDR, GATEWAY, NETMASK




Save the file


3. Restart the network service:


service network restart


4. Confirm the changes:


ifconfig eth0


You should see the inet addr, Bcast and Mask values updated.


Thank you!


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