Monitoring disk I/O on a Linux system is crucial for every system administrator. When performing basic system troubleshooting, you want to have a complete overview of every single metric on…

Whether you are a Linux system administrator or a DevOps engineer, you spend a lot of time tracking performance metrics on your servers. You may sometimes have instances that are…

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…

When using Git, it is quite common for developers to add new files to their repositories during development. Most of the time, files are associated with commits. Developers often start…

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…