There are several different ways that you can enable IP addresses on CentOS/Redhat 7.x. In this guide, we’ll provide you with instructions and examples for configuring a small number of additional IP addresses, entire CIDR network prefixes (blocks/ranges), and ways to remove them.
Some times you might want to use more than one IP address for your network interface card. What are you going to do? Buy an extra network card and assign new IP? No, It’s not necessary(atleast in the small networks). We can now assign multiple ip addresses to single network interface card in CentOS / RHEL 7 systems. Curious to know how? Well, Follow me, It is not that difficult. 继续阅读