In the last tutorial of this series, we will finish up our migration by transferring users, groups, mail, crontabs, and other settings over to our new server.

In the previous tutorial, we prepped our servers for data migration. At this point, your target and source system should be able to communicate (the target system should have SSH access to the source system), and you ...

There are many different considerations you should make when migrating from one system to another. In this guide, we will discuss how to prepare your source and target systems for a migration. This will include gettin...

Jenkins is an open-source automation server that automates the repetitive technical tasks involved in the continuous integration and delivery of software. In this tutorial, you will install Jenkins by adding its Debia...

In this guide, we’ll focus on setting up SSH keys for an Ubuntu 22.04 installation. SSH keys provide a secure way of logging into your server and are recommended for all users.

When I upgrade to a multi-core (from 1 vCPU to 2 vCPU) do I need to upgrade anything (besides my code) to take advantage of 2 vCPU? If I simply resized my droplet without a brand new Ubuntu install, if my python singl...

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.

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.

Most modern Unix-like operating system, rely on a centralized package management system for finding and installing software. This guide serves as a quick reference for the fundamentals of finding, installing, and upgr...

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 a...

Package management software allows you to easily control the software on your servers. These tools allow you to install, remove, update, and configure thousands of packages through a unified interface. In this guide, ...

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 pro...

Terraform is a tool for building and managing infrastructure in an organized way. In this tutorial, you’ll install and use Terraform to create an infrastructure on DigitalOcean that consists of two Nginx servers that ...

One big figure that I find lacking on DigitalOcean, is the ability to rent additional IP addresses for your server. I know plenty of cases where this is something that is needed or advantageous, and I’ll give my curre...

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. ...

Systemd is an init system and system manager that has become the new standard for Linux distributions. In this guide, we will be discussing the systemctl command, which is the central management tool for controlling t...

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

Hello, I can’t extract apache kafka : kafka@ubuntu-ThinkPad-X250:~/Downloads$ tar -xvzf ~/Downloads/kafka.tgz --strip 1 gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recoverable: exiti...

In this tutorial, you will learn how to install and manage Supervisor on a Linux server.

The Node.js ecosystem provides a set of tools for interfacing with databases. One of those tools is node-postgres , which contains modules that allow Node.js to interface with the PostgreSQL database. In this tutorial...