Linux System Administration

For the system administrator, checking that disks are working properly is a big concern. In many cases, you will have to list all the disks available on your computer, with…

As a network engineer, you probably spend a lot of time thinking and planning your network infrastructure. You plan how computers will be linked, physically using specific cables but also…

In one of our previous articles, we learnt how you can encrypt your entire root filesystem on Linux easily. However, in some cases, you may want to encrypt one simple…

DNS, short for the Domain Name System protocol, is used on Linux systems in order to retrieve IP addresses associated with names. For example, when you are performing a ping…

If you are working in a medium to big-sized company, it is quite likely that you are working with many other system administrators. As you are performing your sysadmin tasks,…

As a system administrator, you probably already know how important it is to encrypt your disks. If your laptop were to be stolen, even a novice hacker would be able…

If you are a conscientious system administrator, you have probably already wondered how you can make your files secure. Nowadays, as system attacks get more and more frequent, it isn’t…

As a system administrator, you are probably dealing with a lot of services every day. On Linux, services are used for many different purposes. They may be used in order…

On Linux, the root account is probably one of the most powerful accounts that there is. Considered the most privileged account on a Unix system, root can perform any tasks…

This tutorial focuses on how to create swap space on Ubuntu 20.04 using a swap partition or a swap file. For system administrators, it is quite common for servers to…