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Command Line Interface (CLI)

A command-line interface or command language interpreter (CLI), also known as command-line user interface, console user interface, and character user interface (CUI), is a means of interacting with a computer program where the user (or client) issues commands to the program in the form of successive lines of text (command lines).

How to use sar for monitoring your Linux system? sysstat sar examples and usage

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This article describes how to install and use sar (sysstat) a system performance tools for Linux. It comes with plenty of sar examples and usage. Sar is part of the sysstat package. According to the package description it includes the following system performance tools: sar: collects and reports system activity …

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Fix “WARNING: The following packages cannot be authenticated!” in Kali Linux

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I just reinstalled Kali 1.0.5 and successfully did apt-get update and apt-get upgrade. But when I am trying to do an apt-get dist-upgrade I get this error “WARNING: The following packages cannot be authenticated!” Obviously I don’t want to install un-authenticated package. So I cancelled. Did some Googling and different …

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Installing Tor in Kali Linux

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Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security.  This guide guides your through installing tor in Kali Linux. Why anonymity matters? Tor protects you …

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How to permanently switch Desktop Environments

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This guide will explain  how to Permanently Switching Desktop Environments in Kali Linux.  Permanently Switch Desktop Environments Use the following to make a selected Desktop Environment your primary one (i.e. Make Gnome or KDE etc. your default desktop environment.) update-alternatives --config x-session-manager Don’t forget to read How to install/remove different …

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