How to Fix “ssh_exchange_identification: read: Connection reset by peer” Error


This article deals with the most common causes of the "ssh_exchange_identification: read: Connection reset by peer" error. At the same time, we offer expert solutions for this error, such as managing Host-Based Access Control Lists, changing…

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How to Install SSL Certificate on NGINX


Install an SSL Certificate on NGINX to ensure a safe connection between your web server and browser. Encrypt transmitted data over the internet so that it is only visible to the intended recipient.

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How to Remove Old Kernels on Ubuntu 16.04, 18.04, & 19.04


There are several methods to remove old or unused kernels. It’s also considered good system hygiene practice to prune out old files and dependencies. This guides shows you how to do delete old Linux kernels in a couple of simple steps.

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Linux Commands Cheat Sheet: With Examples


A list of all the important Linux commands in one place. Find the command you need, whenever you need it or download our Linux Commands Cheat Sheet and save it for future reference.

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How to Enable SSH on Raspberry Pi {Linux, Mac OS, Windows}


This article shows you how to enable SSH on your Raspberry Pi using different methods. The guide also provides an essential tip on how to improve the security of your Raspberry Pi device. If you are not sure how to SSH into the device, we got that…

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How to Install Apache on CentOS 8


The Apache web server is widely used, especially as part of the LAMP stack software package. Learn how to install Apache on CentOS 8, configure firewalld, and start managing your web server with this simple updated tutorial.

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How to Install and Configure Nginx on CentOS 8


Nginx, a popular, open-source HTTP web server, is used for hosting many high-traffic websites. It is part of the LEMP stack, an alternative to the popular LAMP stack. It is faster and lighter than the traditional Apache web server. It is also a…

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How to Transfer Files with Rsync over SSH


Rsync is a Linux tool that allows you to transfer data over SSH to a remote server securely. Use the options for the rsync command to adapt the tool for your specific use case.

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How to Update Node.js to Latest Version {Linux, Windows, and macOS}


If you are a Node.js user, you need to make sure to regularly update the software package as new releases come out often. This guide shows you different ways how to upgrade to the latest Node.js on Linux, Windows, and macOS. Get the newest Node.js…

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How to Fix “Your PHP installation appears to be missing the MySQL extension which is required by WordPress”


The "Your PHP installation appears to be missing the MySQL extension" error can occur in WordPress when there’s a glitch in the installation or migration process, or if there have been recent updates made in the LAMP software. Read this guide and…

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