To make sure your server will function properly you need to make sure you have the DNS of the server set up properly. You need your host name set up and configured, which means determining whether your server is local only or will be accessed on the internet and, if internet accessible, making sure your domain name points to the right external internet address of your router/server. To make sure that your server is accessible from both the internet and internally at the same address all the time, we need to make sure the server is assigned a static, or permanent, IP address. In most network settings there is what is called a DHCP server which distributes addresses to computers that come on and off the local network. The DHCP server works with a bank of addresses and makes sure no computers have the same addresses so everything runs smoothly. In most cases your router is the device that is distributing these addresses. Once a computer goes off the network that address could be used for another machine that is just coming on, so there is no guarantee that your server will get the same address every time your network goes down and comes back up, or your router reboots, or you reboot your server. This is where a static IP for your server solves this problem.
In this tutorial I walk you through the steps to assigning a static IP assigned to your server using an Airport Extreme Base Station. I also cover how to update the network settings on your server to make sure it is reading the right information. This is the second part of my home server tutorials and I’ll be following up with one on port mapping in the coming week.
