SysAdmin

This tutorial explains how to identify the causes and troubleshoot the WordPress 500 Internal Server Error. We present 8 different options for resolving this issue.

Sudo stands for superuser do. Sudo is a command used in Unix-like systems to allow a regular user to execute a program as another user. In most cases, it is the root user. Sudo gives you administrator-level permissions to run programs on your machine. This guide will show you how to create a user with sudo privileges on Debian and test the sudo access.

Wine is an application that lets you run Windows programs on a Linux system. Wine is similar to an emulator, but with a different technology that improves performance. In this tutorial learn how to install and use Wine on Ubuntu 18.04.

Kafka collects and structures vast amounts of data from multiple clients simultaneously. It improves the efficiency of applications running in a Kubernetes cluster. Use this article to find out how to configure Kafka brokers on your Kubernetes cluster.

Git tracks source code changes during the software development process. It can help coordinate work among programmers. This tutorial uses multiple images to show you how to install Git on Windows in a few simple steps, followed by a few basic commands to complete the initial setup.

The Linux kernel is much like the central brain of the operating system. Although it is open-source – meaning anyone can view and modify the code – the Linux kernel is built with multiple protocols to ensure stability and security. This guide will walk you through how to check the Linux kernel version of your operating system.

Are you looking to change the root password in Ubuntu? Changing passwords is a good practice and should be done periodically. Linux allows multiple user accounts, each having its own password. Users can only change their own password. However, there is always a sudo/root (SuperUser) account. Root users can change the password of any account, including their own.

Learn how to use the su command with practical examples and explanations. Change users in the terminal window or switch to the root in a single step. This article tells you all you need to know about su.

Git is a version control system that helps you control the stages of software development. It uses named branches to keep the original code intact, while working on new revisions. This guide uses a few simple commands to show you how to change the name of a branch.

This tutorial shows how to install Nmap on a Linux-based system and use it to retrieve valuable information from remote systems.