Binding multiple IP addresses to a single Ethernet device

In this recipe we will learn how to bind multiple IP addresses to a single Ethernet device in order to provide greater networking functionality to a new or existing CentOS server.

There are many advantages to using a static IP address, but combining this with the ability to use more than one will present you with a new range of configuration options. Clearly, the benefit of circumventing the need to purchase and install multiple Ethernet devices is obvious, but this approach will not only enable you to run multiple servers and websites, it can also enable you to create a private LAN using a local IP and have the alias hold your Internet IP. So with that in mind, it is the purpose of this recipe to show you how easily an IP-rich server can be achieved.

Getting ready

To complete this recipe, you will require a working installation of the CentOS 6 operating system with root privileges and a console-based text editor of your choice. It...