Remember how you set up the network interfaces in your virtual machines in OPS235? You're expected to know that inside out by now. <br> In OPS235, you learned how to configure a virtual private network via graphical applications for the '''centos1''' and '''centos2''' machines. In the previous lab, you have created and cloned VMs that are text-based only (like centos3). All of the services that we're are configuring in this course require a working network connection so ; therefore, it will be hard for is very important that you to get anything done if you don't know how to set (preferable configure) a static IP address or change , default gateway, as well as your DNS server or default gateway.