Linux strace Command Tutorial for Beginners (8 Examples)
The Linux command line offers many tools that are helpful for software developers. One among them is strace. The strace command in Linux lets you trace system calls and signals.
View ArticleHow to Install LibreNMS with Nginx on Ubuntu 22.04
LibreNMS is a free, open-source, and powerful network monitoring tool for Linux-based operating systems. In this tutorial, we will show you step-by-step instructions on how to install LibreNMS on...
View Article16 Practical Examples of Linux LS command for Beginners
Whenever it's required to take a look at the contents of a directory on the command line in Linux, ls is the command that's used. It lists the contents sorted in alphabetical order. While that's the...
View ArticleHow to Configure Apache Virtual Hosts on Ubuntu 22.04
The virtual hosting concept is used by companies to host multiple websites using a single machine. In this tutorial, we will see how we can host two virtual hosts on an Ubuntu 22.04 system using...
View ArticleUbuntu 22.04 Minimal Server Installation
This tutorial shows the installation of an Ubuntu 22.04 base server in detail with many screenshots. The purpose of the guide is to show the base installation of Ubuntu 22.04 LTS that can be used as a...
View ArticleLinux md5sum Command Explained For Beginners (5 Examples)
When downloading files, particularly installation files from websites, it is a good idea to verify that the download is valid. A website will often display a hash value for each file so that you can...
View ArticleHow to Install NFS Server and Client on Ubuntu 22.04
NFS or Network File System is a protocol that allows local users to access remote data from multiple disks and directories in the same way as local access. In this tutorial, you will learn how to...
View ArticleHow to Install and Configure HAProxy on Ubuntu 22.04
HAProxy also stands for High Availability Proxy is a free, open-source Load Balancer and proxying solution designed to simplify and secure modern application architectures. It allows a web server to...
View ArticleLinux lsof Command Tutorial for Beginners (15 Examples)
The lsof command in Linux displays in its output information about files that are opened by processes. In this article, we will discuss the tool using 15 easy-to-understand examples.
View ArticleHow to Install Standard Notes Server on Ubuntu 22.04
Standard Notes is an open-source encrypted notes app. In this tutorial, you will learn how to self-host your standard notes server on a Ubuntu 22.04 machine.
View ArticleHow to Setup DNS Server with BIND on Ubuntu 22.04
BIND or Berkeley Internet Name Domain is free and open-source DNS Server software. It's one of the most popular DNS server software used by more than 70% of DNS on the Internet. This guide will teach...
View ArticleLinux nm Command Tutorial for Beginners (10 Examples)
If you are a Linux user who is also into system level software development, you may find yourself in situations where-in you need information related to symbols in an object file. You'll be glad to...
View ArticleHow to Install Joomla with Apache and Let's Encrypt SSL on Ubuntu 22.04
Joomla is a free, open-source, and award-winning content management system that allows you to build websites and online web applications. It is written in PHP and uses MySQL as a database backend. In...
View ArticleHow to Install OpenLDAP on Ubuntu 22.04
OpenLDAP is a software implementation of the Lightweight Directory Access Protocol (LDAP). This guide will teach you how to set up LDAP Server with OpenLDAP and LDAP Account Manager on the Ubuntu 22.04...
View ArticlePostfix - mail for example.com loops back to myself
Error: Postfix - mail for example.com loops back to myself You see the following error in your mail log: Feb 24 21:42:42 mail postfix/smtp[1911]: 8172723F60: to=<info@example.com>,...
View ArticleResolving Domain Names with dig Command on Linux
This tutorial shows how to resolve domain names on the Linux shell and how to query a name server for various kinds of DNS records like A, MX and NS records. To resolve a domain name on the shell, we...
View ArticleHow to Install Moodle with Nginx and Free Let's Encrypt SSL on Ubuntu 22.04
Moodle is a free and open-source Learning Management System and CMS written in PHP. It allows tutors and instructors to create courses for their students and provides long-distance education and other...
View ArticleLinux taskset Command Tutorial for Beginners (with Examples)
In this tutorial, we will discuss a utility - dubbed taskset - that lets you achieve processor affinity. Ever heard of the term processor affinity? It's a feature that allows you to bind or unbind...
View ArticleHow to Setup FTP Server with vSFTPd and TLS on Ubuntu 22.04
vSFTPd or Very Secure FTP Daemon is free and open-source FTP Server software. In this tutorial, I will show you how to set up an FTP server with VSFTPD (Very Secure FTP Daemon) on the Ubuntu 22.04...
View ArticleLinux tty Command Tutorial for Beginners (with Examples)
In Linux, everything is a file. Even any hardware device connected to the system is represented as a special file. So it shouldn't come as a surprise that a terminal is also represented as a file....
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