How to Install and Use ifconfig on CentOS 7


The ifconfig command is a tool for network interface management that is used to enable/disable interfaces, manage IP addresses, netmasks, MAC addresses, etc. This tutorial shows how to install and use the ifconfig command on CentOS 7.

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How to Deploy NGINX Reverse Proxy on Docker


The easiest way to set up a reverse proxy is using Docker and Nginx. Learn how to set up reverse proxy for web servers by running each service in a Docker container.

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How Does SSH Work?


SSH is a network protocol designed to provide a more secure network communication by employing encryption. This article deals with the mechanism behind SSH and its layers, and lists some of its common use cases.

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How to Configure Proxy Settings on Ubuntu 20.04


Proxy servers are commonly found on local business networks, providing an additional security layer. Among personal users, they are popular because they help increase privacy and speed. This tutorial shows how to set up a proxy on Ubuntu 20.04.

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How to Test Network Speed in Linux via CLI


This article shows you numerous ways to test network speed in Linux via CLI. Learn how to install and use 9 online tools to test internet speed from the command prompt window,

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How to Change Hostname on Ubuntu 20.04


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


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…

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How to Calculate Website or Web-Based Application Bandwidth Requirements


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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How to Fix the SSH “Connection Refused” Error


Fix SSH connection refused by troubleshooting some of the common causes for this problem. Take a look of all the reasons for connection refused error and how to fix the problem.

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