Networking

How to Change Hostname on Ubuntu 20.04

November 25, 2020

Hostname is a unique identifier of a computer on a network. This tutorial details ways in which you can change your Ubuntu 20.04 machine's hostname, using command line or GUI.

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Apache 403 Forbidden: Reasons and How to Fix It


Despite the reliability of Apache web servers, '403 Forbidden' errors are not uncommon. This tutorial goes over different things that could cause an Apache '403 Forbidden' error and ways to fix them.

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How to Install OpenVPN on CentOS 7 or 8

November 19, 2020

In this tutorial, you will learn how to set up OpenVPN on a CentOS 7 server and how to connect to OpenVPN from a client machine. Establish a secure connection to a company network, bypass geo-restrictions, and allow you to surf the web using public Wi-Fi networks while keeping your data private with OpenVPN.

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How to Calculate Website or Web-Based Application Bandwidth Requirements

November 12, 2020

Read through the article to learn how to determine the required bandwidth for your website and web-based applications. The guide also talks about bandwidth, data transfer, and the differences between them.

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Install NFS Server on Ubuntu

November 10, 2020

NFS is a Linux file sharing system, allowing users to view, store, share or update files on remote computers. This tutorial covers simple steps to install and set up NFS on your network.

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How to Use the hostname Command in Linux

October 8, 2020

The Linux hostname command lets you view your computers domain, hostname, and IP address. You can also use it to change your hostname. This tutorial covers all the ways you can use the hostname command, with examples for each option.

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How to Install dig on CentOS 7 and 8

October 7, 2020

The dig command is commonly used among network and system administrators. It is an important DNS tool for network troubleshooting and solving DNS problems. Learn how to install and use dig on CentOS.

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How to Install and Configure Nginx on Ubuntu 20.04

October 1, 2020

Nginx is an open-source application used for managing web servers, load balancing, and security. This tutorial offers a step-by-step guide for installing and configuring Nginx on Ubuntu 20.04.

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How to Use Linux dig Command (DNS Lookup)

September 1, 2020

dig (Domain Information Groper) command is a tool for querying DNS name servers. It is a helpful command for diagnosing DNS problems but is also used to display DNS information. Learn how to use this command by following this article.

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How to Change or Set Hostname on CentOS 8 / RHEL 8

August 10, 2020

If you decide to change your hostname, you have multiple available options to do so. Follow the methods in this guide and you will successfully change the hostname on your CentOS8 / RHEL machine.

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