Systemd is an init system and system manager that is widely becoming the new standard for Linux machines. While there is considerable controversy as to whether systemd is an improvement over the init systems it is rep...

SSH is an important tool used for administering remote Linux and Unix-like computers. In this guide, we will discuss the basic usage of this utility and how to configure your SSH environment.

Finding files is a very common task on any operating system. The Linux "find" and "locate" commands can both be used to search for files on the filesystem. This guide will cover how to use these two tools to craft s...

SSH-key-based authentication provides a more secure alternative to password-based authentication. In this tutorial we'll learn how to set up SSH key-based authentication on an Ubuntu 16.04 installation.

SSH, or secure shell, is the most common way of administering remote Linux servers. Although the daemon allows password-based authentication, exposing a password-protected account to the network can open up your serv...

Some of the most compelling advantages of systemd are those involved with process and system logging. Using other systems, logs are usually dispersed throughout the system, handled by different daemons and tools, and ...

Process management is an essential skill when using any computer system. This is especially true when administrating a server environment. This article will introduce some powerful tools that can be used to manage p...

Ubuntu's next Long Term Support release, version 16.04 (Xenial Xerus), is due to be released on April 21, 2016. This guide explains the upgrade process for systems including (but not limited to) DigitalOcean Droplets ...

Netcat is a versatile networking tool that can be used to interact with computers using UPD or TCP connections. It can function as a simple file server, simple web server, simple point-to-point chat implementation, a...

This tutorial shows you how to configure system services to automatically restart after a crash or a server reboot. We cover the three most common init systems in this tutorial: System V, Upstart, and systemd.

After setting up the bare recommended configuration for a new server, there are often some additional steps that are highly recommended in most cases. In this guide, we'll continue the initial configuration by tacklin...

SSH, or secure shell, is an encrypted protocol used to communicate with remote servers safely. The practical uses of SSH are widely discussed in other guides. In this article, we'll examine the underlying encryption...

SSH, or secure shell, is the most common way of connecting to and administering remote Linux servers. In this cheat sheet-style guide, we'll cover some of the basic options and configuration sets you may want to use.

The iptables firewall is a great way to secure your Linux server. In this guide, we'll discuss how to configure iptables rules on an Ubuntu 14.04 server.

Adding and deleting users are basic tasks that you will have to preform on most servers. Granting sudo privileges to allow users to perform administrative functions is another common requirement. In this article, we...

Increasingly, Linux distributions are adopting or planning to adopt the systemd init system. This powerful suite of software can manage many aspects of your server, from services to mounted devices and system states. ...

SSH-key-based authentication provides a more secure alternative to password-based authentication. In this tutorial we'll learn how to set up SSH key-based authentication on an Ubuntu 18.04 installation.

This article reviews setting up and using YUM repositories on a CentOS 6 VPS.

SSH-key-based authentication provides a more secure alternative to password-based authentication. In this tutorial we'll learn how to set up SSH-key-based authentication on a CentOS 7 installation.

Zabbix is open source monitoring software for networks and applications. It offers real-time monitoring of thousands of metrics collected from servers, virtual machines, and any other kind of network device. These met...