Learn Linux

Wget is a command-line, open-source utility to download files and web pages from the internet. It gets data from the internet and displays it in your terminal or saves it to a file. The wget utility is non-interactive. You can get the most out of it through scripts or even schedule file downloads.

We all detest when a running Linux system becomes slow or sluggish over time. You might have invested in powerful PC hardware but find it getting slow when you run multiple applications. Linux systems are known for their resilience and speed of processes. However, sometimes processes or services take longer to execute than expected.

Linux Containers have been around for some time but became widely available when introduced in the Linux kernel in 2008. Containers are lightweight, executable application components that combine app source code with OS libraries and dependencies required to run the code in any environment. In addition, they offer application packaging and delivery technologies while taking advantage of application isolation with the flexibility of image-based deployment methods.

Systemd is an init system and system manager in Linux systems and is compatible with LSB and SysV. You can use the systemd suite to manage and optimize system start-up services and resources in a Linux system. It is a practical tool for sysadmins to get their system up and running, optimize processes, debug, and troubleshoot system services.

If you are a Linux Mint enthusiast, then you probably know that the stable version of Linux Mint 20.2 “Uma” is officially out. However, regardless of the Linux Mint OS version you were using before, or you are still using, it is now possible to make an update or upgrade to Mint 20.2 “Uma”.

Linux operating systems offer countless sysadmin commands and utilities, which help users, developers, and engineers with system administration tasks. For example, sysadmin commands and packages can help users optimize or manage applications and provide valuable troubleshooting information to network admins or sysadmins.

Cron is a scheduling daemon that executes cron jobs at specified intervals. Cron jobs automate system maintenance, repetitive or administration tasks such as database or data backup, system updates, checking the disk space usage, sending emails, and so on.

If you have been a Linux user or enthusiast for a considerable amount of time, then the term swap or swap memory should not be news to you. But, unfortunately, many Linux users tend to confuse the concept of swap memory with swappiness. The most common misconception is that a swappinness value indicates the maximum usable RAM before the actual swapping process begins.

Service discovery cannot gain a proper definition without the acknowledgment of an existing computer network. A computer network sets the needed communication protocols for network devices to share the available resources through its network nodes. This sharing of resources involves both network devices and services pre-defined on that network.

For many aspiring system administrators, networking is a vast and intimidating topic. To grasp them, there are many layers, protocols, and interfaces to learn and numerous resources and utilities. In this guide, you’ll learn more about ports. We will look at the various programs that will help us to get the state of our ports. These include the following.