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16/06/2016
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How To Secure Apache with Let’s Encrypt on Ubuntu 16.04

Introduction This tutorial will show you how to set up a TLS/SSL certificate from Let’s Encrypt on an Ubuntu 16.04 server running ...
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Make the configuration of iptables persistent (Debian)

Objective To make the configuration of iptables persistent on a Debian-based system Background The iptables and ip6tables commands can be used to instruct Linux ...
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The role of shells in the Linux environment

Shell is used for various purposes under Linux. Linux user environment is made of the following components: Kernel - The core ...
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Detect Webcam & Microphone Activity on Mac with Oversight

Source: osxdaily.com Though Mac users don’t usually have to worry excessively about “camfecting” malware and spyware, some security conscious users ...
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How to Disable Webcam / FaceTime Camera on Mac Completely

Source: osxdaily.com Some of the more privacy conscious Mac users out there might put tape over their webcam or use apps like Oversight ...
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How to Migrate a Web Server Running Apache, MySQL, WordPress and Drupal

Well folks its time that my old home hosted server is retired. Which means I have to migrate all of ...
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Easy Ubuntu 16.04 Server Firewall

If you read our previous article Easy Ubuntu Server Firewall, then you may have noted that on Ubuntu 16.04 the ...
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Getting started with Let’s Encrypt SSL Certificates on Ubuntu

This tutorial will guide you through your very first configuration of an SSL website with Let's Encrypt certification. Let's Encrypt ...
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Inotify: Efficient, Real-Time Linux File System Event Monitoring

Summary - or why should I monitor the filesystem at all? The need to scan a given filesystem for changes ...
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HowTo: The Ultimate Logrotate Command Tutorial with 10 Examples

Managing log files effectively is an essential task for Linux sysadmin. In this article, let us discuss how to perform ...
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How can I find out if a specific program is installed?

there's always apt-cache policy <package-name> (no sudo needed). Not installed: olivier@neews:/$ apt-cache policy gnuift gnuift:   Installed: (none)   Candidate: ...
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How do I replicate installed package selections from one Debian system to another? (Debian Wheezy)

To clone a Debian installation, use the apt-clone utility. It's available (as a separate package, not part of the default ...
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Better than Time Machine: backup your Mac with rsync

Backup your Mac with rsync Using rsync: We all know we need to make backups. Apparently, 30% of all computer ...
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Do-It-Yourself Backup System Using Rsync

What is rsync?Rsync is a program for synchronizing two directory trees across different file systems even if they are on ...
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Techniques de scan de ports

GénéralitésComme un débutant tâchant d'effectuer une réparation automobile, je peux me battre pendant des heures en essayant d'utiliser convenablement mes ...
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OTPW – A one-time password login package

Abstract The OTPW package consists of the one-time-password generator otpw-gen plus two verification routinesotpw_prepare() and otpw_verify() that can easily be ...
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