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Sometimes you need to destroy or wipe data from hard drives (for example, before you sell your old hard drives on eBay) so that nobody else can access them. Simply deleting data (e.g. with rm) is not enough because that just removes the file system pointer, but not the data, so it can easily be undeleted with recovery software. Even zero'ing out your hard drive might not be enough. Here's where shred comes into play - shred can overwrite the files and partitions repeatedly, in order to make it harder for even very expensive hardware probing to recover the data.

This tutorial is supposed to guide the reader through the features of the Cinnamon desktop, Mint's new desktop environment to be used in Linux Mint 13. Cinnamon concentrates on holding on to classic design and functionality in times where Gnome 3 and Unity come up with different innovations to the user interface.

This document describes how to deploy AVG Antivirus for Linux/FreeBSD to the Sendmail mail server. It is usable for AVG version 8.5, 10 and 2012. By using AVG Antivirus with your Sendmail mail server, you can ensure virus-free inboxes.

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on a Fedora 16 server with PHP5 support (through PHP-FPM) and MySQL support.

This tutorial provides step-by-step instructions on how to install RSYSLOG server on Debian 6 (Squeeze) and how to send syslog data to it from multiple client servers. We will also show how to install an Apache webserver and a MySQL database server to gather the syslog data and how to install LogAnalyzer to easily browse the collected data with a web-browser.

This tutorial describes the installation of a clustered web, email, database and DNS server to be used for redundancy, high availability and load balancing on Debian 6 with the ISPConfig 3 control panel. MySQL Master/Master replication will be used to replicate the MySQL client databases between the servers and Unison will be used to Sync the /var/www (websites) and /var/vmail (email account data) folders.

Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on an Ubuntu 11.10 server with PHP5 support (through FastCGI) and MySQL support.

Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. It is a fork of Nagios. This tutorial explains how to serve the Icinga Web interface from an nginx server on Debian Wheezy/Ubuntu 11.10 (the tutorial might work for Debian Squeeze as well but I didn't test; Squeeze's Icinga version is a lot older than the versions for Wheezy and Ubuntu 11.10, so there might be small differences).

In this tutorial I want to focus on how to change the Apache server name to whatever you want, so you can give your own name or sentence to Apache server headers that are sent to whois programs or websites, for example you can type "YTS", "GWS" or "Microsoft-IIS/7.0" to misguide the hacker to guess which Linux OS or which version of Apache you are using.

This tutorial shows how you can install an Apache2 webserver on an Ubuntu 11.10 server with PHP5 (through PHP-FPM) and MySQL support. PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation with some additional features useful for sites of any size, especially busier sites.

We all know that Debian is a production like GNU/Linux operating system, thus the software available by default in the repository servers is not always the newest version. I created this tutorial to help those interested in running the latest version of the graphical Internet browser Mozilla Firefox.

Opera Widgets, unlike most other browser plugins, can be downloaded to serve as browser-independent desktop widgets. These are managed through Opera Widget Manager, so the Opera process remains open (without running the browser). This tutorial explains how to use Opera Widgets as desktop widgets on Ubuntu 11.10.

This tutorial will show you how to reroute all traffic for a virtual machine through the Tor network to ensure anonymity. It assumes a standalone machine with a Linux OS, and VirtualBox installed. In this case, we'll be using Ubuntu on the host machine.

This tutorial shows how you can install and run Simple Groupware on a Debian Squeeze or Ubuntu 11.10 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). Simple Groupware is an open source enterprise groupware that offers email, calendaring, contacts, tasks, document management, project management, synchronization with Outlook and cell phones, full-text search, extensions and many more. nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files.

Webuzo Wordpress Stack is a free-quick-install package that allows bundling of all software (dependency) necessary to run Wordpress for development or production purposes. It includes the latest updated version of Wordpress and is pre-configured and ready-to-run.

This tutorial shows how you can install and run ownCloud3 on a Debian Squeeze or Ubuntu 11.10 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). ownCloud enables universal access to files through the widely implemented WebDAV standard, providing a platform to easily view and sync contacts, calendars and bookmarks across devices while supporting sharing, viewing and editing via the web interface. It offers the ease-of-use of Dropbox and box.net without vendor lock in. ownCloud users can run its file sync and share services on their own hardware. nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files.

The goal of this tutorial is to harden the mail server Postfix used by ISPConfig for internet mail servers where authenticated users are trusted. With this setup you will reject a great amount of spam before it passes into your mail queue, saving a lot of system resources and making your mail server strong against spammers and spam botnets.

This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier, so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin, ClamAV and SquirrelMail.

Here is the guide on installing Firebird 2.5.1 from FreeBSD 9 Ports and creating your first test database; also we show you how to install Flamerobin GUI (administration tool) and the PHP driver for it. This was tested on fresh FreeBSD 9 on a kvm-linux virtual machine.

This tutorial provides step-by-step instructions on how to install Xen (version 4.1.2) on a CentOS 6.2 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other, but still use the same hardware.