Category: Ubuntu

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How to Enable Swap in Ubuntu

Swapping is the process of moving data from a system’s memory (RAM) to a preconfigured space on the hard drive, known as the swap space. Enabling swap, in many cases, is an easy and cheap way to squeeze a little more from a server. The most beneficial feature of swap is that it allows your … Continued

Ubuntu – How to Change Hostname Without Rebooting

1. Update the current hostname

This command will instantly update the hostname which prevents having to reboot. It is not, however, persistent so your changes will be lost the next time you do reboot. 2. Update hostname File

Delete the current hostname and replace it with yours. This makes the new hostname persist … Continued

How to Add Additional Elastic IPs to AWS EC2 Instances

Despite what some say, There are several good reasons that you might want to have multiple IPs assigned to one server. If you’re using an AWS EC2 Linux instance then adding additional IPs is fairly simple. Here’s how it’s done.