This article explains how you can protect your piece of digital content—whether it be documents, audio tracks, video clips, or cropped images that end users can download with their favorite browser. It will show you what you need to know about the DRM technology to achieve DRM interoperability from device to device.
Sometimes you need to encrypt your home (and maybe swap) partition so it will not be available until you input a password and/or use a key. This tutorial is about encrypting a FreeBSD Home Partition using GELI.
iptables is a tool used in linux distributions to control kernel's netfilter's firewall. Here is a tutorial on iptables.IPtables firewall contains 3 tables, every table contains chains. Those chains are default. User is able tdefine new chains and link from default chains to those user defined chains.
Protect your server from SSH attacks with this step-by-step guide. This guide shows you how to move your SSH port, install brute force detection, and more!
This is a beginners' guide. Things are explained very simply here but it WILL give you a good understanding what iptables is and how to begin writing a script. Sure you can do this all with a GUI but, wouldn't you like to know how to do it down and dirty?
SCENARIO: A friend of mine had a problem, he has a home network similar to mine and a Wireless Access Point (AP) that he wanted to use since mobility is everything. We sat down and designed his network and then wrote an iptables script for his setup.What follows is a more or less picture so you get the idea what the system / network looked like:
Recently, I have been watching a lot of my friends who use various versions of Windows getting a lot of viruses, mostly because of their negligence/ignorance. This sudden spurt in spread of Viruses/Worms/Trojans etc. made me think about Linux security. It also made me realize how vast this topic of "Securing a Linux Box" can be.
The pervasiveness of the Internet has led to more and more opportunities for your company's servers to be attacked from without. Part-time Linux admins, never fear. Our updated network security basics document will get you well on your way to locking your system down.
One of the most powerful aspects of Linux is its ability to launch services, or daemons, and run them in the background as needed. But running all of these background services can be an administrative headache when you take into account user access and permissions, too. Dee-Ann LeBlanc walks readers through the basics of xinetd, a tool that lets you securely and effectively lock down services on your Linux machine.
When you're running an Apache Web server for yourself, you don't think about the user that's running the Apache server itself (typically nobody on Linux systems). But what if you're an ISP with multiple companies being hosted on your system? Or an educational institution with faculty who want to be able to execute their own scripts? Either everything has to be accessible to the Apache nobody user, or you have to run multiple instances of Apache on multiple ports and IP addresses, one of each per user, with the concomitant confusion of configuration files. The solution is the use of the suexec wrapper, which is part of the Apache distribution.
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