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How To Copy Directory on Linux
Copying directories on Linux is a big part of every system administrator routine. If you have been working with Linux for quite some time, you know how important it is to keep your folders well...
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How To Add Swap Space on Ubuntu 20.04
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 run out of RAM. In some cases, you...
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How To Manage Root Account on Ubuntu 20.04
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 needed for system...
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How To List Services on Linux
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 to start a SSH server on your...
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How To Encrypt File on Linux
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 probably a bad...
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How To Encrypt Root Filesystem on Linux
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 to extract the information...
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How To Find Last Login on Linux
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, some users may try to...
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How To Flush DNS Cache on Linux
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 request, it is quite...
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How To Encrypt Partition on Linux
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 partition that may store some of...
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How To Add Route on Linux
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 logically...
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