For adding additional IP address to your server running CentOS, you need to do the following.

1. Connect via ssh to our server. Create file /etc/sysconfig/network-scripts/ifcfg-eth0:0 with the following content:

(IPADDR and NETMASK data use those that you received when ordering an IP address)

2. It can be done using next commands. Go to the network-scripts directory: cd /etc/sysconfig/network-scripts/. Then create a new file:

3. After that, restart the network service:

We execute ifconfig, we see that eth0:0 has appeared.

eth0:0 Link encap:Ethernet HWaddr 00:11:22:33:44:55

inet addr:192.168.0.11 Bcast:192.168.0.11 Mask:255.255.255.255

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

Interrupt:185 Base address:0xa000

Adding an additional IP address is completed.