Author: Rahul

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

Memcached is a distributed memory object caching system which stored data in memory on key-value basis. It is very useful for optimizing dynamic websites and enabled speed by caching objects in memory. This article will help you to install Memcached with PHP Memcache PECL extension on Ubuntu 20.04 systems. Prerequisites You must have shell access to your Ubuntu 20.04 system with sudo privileged account. Login to your system and complete this tutorial. Step 1 – Installing Memcached on Ubuntu First of all, update Apt package cache on your system then install Memcached service on your system. Execute below commands from…

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Apache OpenOffice is an open-source office application software suite available for Unix-based systems. You can use documents, spreadsheets, presentations, and drawing software freely. OpenOffice is a project build by the Apache foundation and providing the latest features and security updates. This tutorial will help you to install Apache OpenOffice 4.1 on Ubuntu 20.04 LTS system. Step 1 – Installing Java Apache OpenOffice 4.1 required Java runtime 8 or higher version to run on any platform. Make sure you already have installed Java on your system. To install latest available OpenJDK Java on your Ubuntu system, type: sudo apt install default-jdk…

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In some cases you may required to search all files owned by a particular user on Linux system. For example, you are hosting a cPanel server and there are mismatch with size of quota and home directory of user. In that case some of the files owned by user are outside of there home directory. To find all files on the server owned by that user run the following command. find / -user $USERNAME Replace $USERNAME with the actual username to whom you need to search files. This command will search files owned by a particular user in entire file…

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Wine (Wine Is Not an Emulator) is an open-source application that provides compatibility with running software developed for Microsoft Windows on Unix-like operating systems. With the help of Wine, you can run Windows software on a Linux system. The development team has recently released the latest Wine 9.0 version that is available for installation on Ubuntu systems. This tutorial helps you to install Wine on Ubuntu 22.04 and Ubuntu 20.04 LTS Linux systems. The Winehq team provides PPA for installing Wine on Ubuntu systems. So we will use official wine PPA for the package installation. Step 1: Update Your System…

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How to Clear Cache of Cloudfront Distribution AWS

AWS Cloudfront is a content delivery network (CDN) service, which delivers data fast and security world wide. It keeps a copy of files to their own server for faster delivery. Sometimes when you apply changes to your application, it not appear on frontend immediately. This is due to Cloudfront serve those files from there own server. It takes some time to read latest files from original servers. To apply changes immediately, you need to clear cache on Amazon Cloudfront. AWS provides an option to create cache invalidation request against your Cloudfront distribution. This tutorial help you to clear cache on…

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Right file permission is the most crucial part of the Linux system management. A file with permission 777 is open to everyone for read and write. Any user logged in to system can write to this file. Which can be harmful for your system. In some condition’s, you may required 777 permissions like log file etc. But mostly we don’t required it. This tutorial will help you to search files with 777 permission on your Linux/Unix system via find command. Syntax: find /path/to/dir -perm 777 The -perm command line parameter is used with find command to search files based on…

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I am configuring my Linux system to accept incoming emails and forward them to needed email accounts. For this setup, the Ubuntu operating system is used with the postfix mail server. We can configure Postfix as mail forwarding server using the virtual_alias_maps settings. This tutorial will help you to set up a postfix server to forward the email to other email accounts. Setup Mail Forwarding in Postfix Forwarding emails to remote mailboxes via Postfix does not require local mailboxes. Any email received by the Postfix will be routed to remote mailboxes based on configuration. Below example configuration will help you…

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Django is a Python Web framework that encourages the rapid development of applications. The Django framework is designed for developers to take applications from initial to completion as quickly as possible. It provides higher security for the application and avoids developers from making common security mistakes. This tutorial will help you to install the Django web framework in Ubuntu 20.04 Linux system. It will also help you to create a sample Django application. Let’s go through the tutorial: Step 1 – Installing Python Most of the latest operating systems come with default Python 3 installed. But if your system doesn’t…

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Memcached is a distributed memory object caching system which stored data in memory on key-value basis. It is very useful for optimizing dynamic websites and enabled speed by caching objects in memory. Read more about Memcache. This article will help you to install Memcached and PHP Memcache extension on CentOS 8 and RHEL 8 Linux systems. Prerequisites You must have a running CentOS 8 or RHEL 8 Linux system with sudo privileged account access. Step 1 – Install Memcached Server The Memcached rpm packages are available under the default packages repository on CentOS/RHEL 8 systems. First, update the DNF cache…

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NVM is a Node Version Manager tool. Using the NVM utility, you can install multiple node.js versions on a single system. You can also choose specific Node version for applications. It also provides an option to auto select Node version using .nvmrc configuration file. This tutorial will help you to install NVM on Ubuntu 18.04 LTS (Bionic) system. Tutorial will also help you to install mutiple node versions on a account on Ubuntu system. Prerequisites A running Ubuntu 18.04 LTS system with shell access Login to system with user to which you need to install Node versions Install NVM on…

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