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…
Category:
Basics
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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,…
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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…
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When working on Linux operating systems, knowing how to get your IP address is essential. Getting your IP address is often the first step of most network troubleshooting processes. If…
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If you are an experienced system administrator, and if you focus on network management, you have probably already heard about the Network Manager. Released in 2004 and developed by Red…
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As a Linux system administrator, you are responsible for many machines that may be located locally or on distant sites. In some cases, you will need to connect to them…
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This tutorial focuses on finding text in files using the grep command and regular expressions. When working on a Linux system, finding text in files is a very common task…
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As a system administrator, knowing how to install, update or delete Linux packages is crucial in order to maintain your Linux hosts and servers. You may have to update your…
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The RAM, for Random Access Memory, is a critical component of a Linux system that needs to be monitored closely. In some cases, you might run out of memory, leaving…
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As a system administrator, you may have downloaded some archives that you need to extract in order to reveal their files. You may be also backing up an entire database…