This Elasticsearch tutorial will walk you through the install of Elasticsearch on Ubuntu 20.04 LTS, with an additional section on how to secure it.

Once a rarely adopted content management platform (CMS), WordPress has grown to power around 35% of the web. Its relatively simple, theme-based approach to website building allows anybody with a bit of computer literacy to create a website, and more importantly, post on it regularly with ease.

In this tutorial, you will learn how to install the Redis server on Ubuntu 20.04 LTS, as well as how to secure it with a password and TLS encryption and perform some redis server config.

Today we’re going to teach you everything you need to know about this useful tool, including how to find a file in Linux, search sub-directories, delete, and filter by aspects like name and file type.

Even those with no familiarity are likely to know about the ping, a networking utility used to test if a device is reachable. Unfortunately, many will also find that ping can stop functioning correctly if the user has a Windows 10 Firewall enabled.

Changing DNS server configuration can be very important. A switch in DNS can aid a server or user’s privacy, fix resolution issues, or allow you to use a self-created DNS server so you have full control over the process.

The configuration of DNS nameservers in Linux were the same for many years, but all things change. In Ubuntu 18.04 and onward, we now have Netplan, a utility designed to simplify network configuration and allow for a quick Ubuntu DNS configure.

It’s a good idea to monitor the performance of any server, as doing so occasionally can help an admin notice issues before they become a major problem. Thankfully, there are numerous command-line tools to aid in this, allowing for examination of resource, disk space, and network usage.

Nginx is a useful open-source software that server admins can utilize for the setup of reverse and regular proxy servers, as well as web serving, media streaming, caching, load balancing, and more. It was first created by Igor Sysoev and got its first release in 2004.

Though there are still some things only a company as big as Google can offer, Matomo competes admirably on major features while adding some unique ones on top. Most importantly, its entire framework is built on transparency and data control.

Connecting to remote computer is a lot simpler than it used to be, thanks in part to services like Google’s Chrome Remote Desktop. With just a program and browser extension, users are now able to connect to another PC via browser in a couple of clicks on most modern operating systems.

Code-server is a cloud development environment based on the popular code editor Visual Studio Code. Visual Studio Code is a powerful code editor developed by Microsoft capable of running on multiple platforms. It supports many languages built-in and a lot more with its extensions ecosystem.

Docker has shot to popularity in recent years for its ability to deliver OS-level virtualization for software. The lack of full hardware emulation makes it lighter than a traditional VM, so much so that software engineers can host over five times the instances.

Security is paramount importance for system admins. There are so many tools for security such as firewalls and network sniffers and so on. However sometimes we need to expose a service to the public and still we need to make sure all our users are legitimate.

Nginx is one of the most popular and stable web servers in the world. It is used by most traffic receiving sites, but cloud providers also use a managed nginx reverse proxy.

Linux permissions are really about two things; users and the permissions they have. Let’s look at creating a user and then we’ll take it further.

Mosh is a replacement for SSH's terminal feature. SSH has been the mostly used and one of the best tools for system and network admins for decades, replacing telnet , ftp, rlogin and others since 1995.

Over the years, Nano has grown to enjoy a devout following. While incredibly powerful, the Nano editor is almost intuitive for the novice and a fantastic addition to any coder or sysadmins’ arsenal.

When connecting to your Linux-based VPS from a Windows system, the most common way of doing that is via SSH, using PuTTY. PuTTY is a free utility which will allow command-line access to your server.

One of the pain points in server management area is that there are not a great deal of free management tools for multiple server installations. We will explore Cockpit project, a multi-server management tool sponsored by Red Hat which includes several advanced features.

An SSH key is a credentialing system using the Secure Shell (SSH) Protocol. While perhaps not as convenient, they are much more difficult to hack than passwords, as they can be up to 4096 bits in length, making them immune from most brute force attacks.

VoIP service TeamSpeak has somewhat fallen out of popularity in the gaming community, but it still has unique value. In the enterprise world, the setup of a TeamSpeak server means cheaper on-site and off-site communication, while gamers find its client to be smaller, more resource-efficient.