How to recover unsaved files in linux

You have spent several hours typing in that text that has to be finished next morning, and then disaster strikes: Your computer crashes. DON’T PANIC!  You can recover most of your changes from the files that Vim uses to store the contents of the file. When you open the original after the recover, you may [&hellip

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Top 25 apt commands in linux

The Advanced Packaging Tool, or APT, is a free user interface / command line tools that works with core libraries to handle the installation and removal of software on the Debian GNU/Linux distribution and its variants. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of [&hellip

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Install and Configure Postfix mailserver

Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail, intended as an alternative to the widely used Sendmail MTA. Postfix is released under the IBM Public License 1.0 which is a free software license. Postfix consists of a combination of server programs that run in the background, and [&hellip

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FXP – File eXchange Protocol

FXP stands for File eXchange Protocol. The File Exchange Protocol (FXP) is a method of using the FTP protocol to transfer files from one remote FTP server to another – without routing the data via the client controlling the exchange. The client maintains a standard FTP connection to each server, and can direct either server [&hellip

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Install and Configure ksar in Linux

How to analyze the sar data using ksar This post is a continuation of our SAR Output Analysis, which have seen in the previous post. SAR (System Activity Report) is a Solaris-derived system monitor command used to report on various system loads, including CPU activity, memory/paging, device load, and network payload. Sar is available with most of [&hellip

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Amazon Virtual Private Cloud: Basics

What is Amazon VPC? Amazon Virtual Private Cloud (Amazon VPC) enables you to launch Amazon Web Services (AWS) resources into a virtual network that you’ve defined. This virtual network closely resembles a traditional network that you’d operate in your own data center, with the benefits of using the scalable infrastructure of AWS. Amazon VPC is [&hellip

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Asterisk – Open source telephony System

Asterisk is an open source  telephony project Started by Mark Spencer in 1999. It includes all the building blocks needed to create a PBX (Private Branch Exchange), IVR (Interactive Voice Response) system, and Conference Bridge and virtually any other communications app you can imagine. We can install it on any Linux machine. I started learning [&hellip

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Openfire Instant Messaging System

Openfire  is an open source real-time collaboration (instant messaging) server, built on the XMPP protocol  and available for multiple platforms. This guide will help you get started with Openfire on your Ubuntu 12.04. Before starting the installation of openfire in your ubuntu machine, update you repositories using the “apt-get update” command. Openfire required Java Runtime [&hellip

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