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Tutorial - DesignLinux

Jun 01 2022
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How to Upgrade to Ubuntu 22.04?

Upgrading the Ubuntu to its latest version is a straightforward and essential process. There are two methods of Ubuntu up-gradation. You can do it by the GUI update tool and by command line. This article will tell you the complete command-line process on servers and desktops. By following this article, you can easily upgrade to

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Jul 13 2021
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What is 503 Service Unavailable Error

A 503 Service Unavailable Error is an HTTP response status code indicating that a webserver is temporarily unable to handle the request. This article describes what a 503 Service Unavailable Error means, and some troubleshooting tips. What is an HTTP 503 Error# One of the most common errors that occur when browsing the web is

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Jul 06 2021
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[Resolved] Cron job wget writing files to root directory

Wget is command line utility for downloading files in Linux from web. Using wget utility you can trigger server side scripts using cron job. It also can be used to download files with FPT, HTTP, HTTPS protocols. Problem# When you use wget with cron job it will save the downloaded files under home directory. So

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Jun 29 2021
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[Solved] Unknown collation: utf8mb4_0900_ai_ci

A collation means a predefined rules to compare and sort character strings in a database server. Generally, this error occurs during the database restoration on another server. In this guide, we will show you how to fix Unknown collation: utf8mb4_0900_ai_ci error. Let us discuss the cause and solution about the issue: Problem – Unknown collation:

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Jun 22 2021
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How to Install Gulp.js on Ubuntu 20.04

Gulp.js is an open-source toolkit that helps developers automate the tasks in development workflow. Gulp is useful to make automate processes and run repetitive tasks easily. It also includes the feature of piping output to the another command. This tutorial shows you how to install Gulp.js on Ubuntu 20.04 LTS Linux systems. Prerequisites# You must

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Jun 15 2021
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How to Install Puppet Agent on Ubuntu 20.04

Puppet is a popular open-source and automation admin engine. It can be used to manage large number of servers remotely and do administrative tasks from a master server. All the client of agent puppet nodes are managed by the server or master node. Before that, all the client nodes must have installed Puppet Agent server.

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Jun 06 2021
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How to Install and Configure Fail2ban on Debian 10

Fail2ban is an open-source tool which is used to protect your Linux system from Brute Force and DDoS other automated attacks. It blocks the client which are repeatedly fail to authenticate correctly with the services configured for it. Actually, it monitoring the logs of services for malicious activity and identify the automated attacks. This article

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May 31 2021
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How to Install Gitea on Ubuntu 20.04

Gitea is an open source, lightweight and self-hosted git platform written in Go. It’s similar to Gitlab, but probably the easiest, fastest, and straightforward to setting up. It includes rich features like issues and time tracking, repository branching, file locking and tagging, merging, and much more. In this article, we will show you how to

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May 26 2021
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How to Install Asterisk on Ubuntu 20.04

Asterisk is a popular open-source PBX platform for developing communications applications such as conference servers and VoIP gateways. It provides a set of features including, conference calling, call queuing, call recording, voicemail, music on hold, interactive voice response, SMS messaging, and more. In this tutorial we will show you how to install Asterisk on Ubuntu

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May 18 2021
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How to Install Puppet on Ubuntu 20.04

Puppet is an open-source and automation admin engine. It’s used to manage server remotely and do administrative tasks. This tool is available on cross platform like Linux, Unix, and Windows. In this tutorial we will show you how to install Puppet on master and client nodes on Ubuntu 20.04 systems. Prerequisites# You need two or

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