Centos 7 - How to add additional IP address
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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:
DEVICE=eth0:0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.11
NETMASK=255.255.255.255
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.11
NETMASK=255.255.255.255
(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:
# nano ifcfg-eth0:0
3. After that, restart the network service:
service network restart
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.