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HOWTO: Encrypt The System Manually Upon Installation (Ubuntu 8.04)
This tutorial describes how you can encrypt an Ubuntu 8.04 (Hardy Heron) system right during the initial installation.
HOWTO: Automatically Unlock LUKS Encrypted Drives With A Keyfile
This howto shows how to unlock multiple devices in the intial ramdisk remotely. I suggest to use a keyfile for automatic unlocking. The keyfile should be stored in the normally encrypted root partition - so you still have to unlock that one. During boot process it will then be used to unlock all the other devices.
How To Block Spammers/Hackers With mod_defensible On Apache2 (Debian Etch)
mod_defensible is an Apache 2.x module intended to block spammers/hackers/script kiddies using DNSBL servers. It will look at the client IP and check it in one or several DNSBL servers and return a 403 Forbidden page to the client. This guide shows how to install and use it with Apache 2 on a Debian Etch server.
How To Set Up Shorewall (Shoreline) 4.0 Firewall On CentOS 5.1
This tutorial will walk you through setting up Shorewall (Shoreline) 4.0 firewall on CentOS 5.1 , this can easily be adapted to any other Linux distribution out there.
About the Script:
This script is about to build a firewall in Linux OS by using iptables, the user only needs to follow and answer the simple and easy steps and the script will generate the user specified iptables rule in its original form.
I HAVE TESTED THE SCRIPT ON PCLINUXOS, FEDORA-9, DREAM_LINUX, UBUNTU-8.
This is my iptables Version 1.0 (USMAN AKRAM - Lucky)
How To Secure Postgresql Using Two-Factor Authentication From WiKID
Databases are the key repository for critical data. If you are storing information that needs to be kept secure from prying eyes, especially credit card or personally identifiable information (PII) you might be required to control access using two-factor authentication. This tutorial demonstrates how to secure Postgresql with two-factor authentication from WiKID.
Intrusion Detection For PHP Applications With PHPIDS
This tutorial explains how to set up PHPIDS on a web server with Apache2 and PHP5. PHPIDS (PHP-Intrusion Detection System) is a simple to use, well structured, fast and state-of-the-art security layer for your PHP based web application. The IDS neither strips, sanitizes nor filters any malicious input, it simply recognizes when an attacker tries to break your site and reacts in exactly the way you want it to. Based on a set of approved and heavily tested filter rules any attack is given a numerical impact rating which makes it easy to decide what kind of action should follow the hacking attempt. This could range from simple logging to sending out an emergency mail to the development team, displaying a warning message for the attacker or even ending the user’s session.
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