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Security related tutorials


Enhancing Apache with mod_security

Post date: April 12, 2005, 18:04 Category: Security Views: 3387 Comments
Tutorial quote: Like probably quite a few of you, I run and admin some websites (some for fun, some for work), and as many of you surely do, some of these websites are mounted on a CMS. CMS are not the 8th wonder of the world, however some of them are pretty good, and they save you a lot of time by automating tons of tasks... however, as in every piece of code there exists, all of them are insecure and buggy (in fact, every piece of software is insecure and buggy to a degree)

So, searching for tools and ways to prevent people from breaking into my site without authorization, I began my search and found a great piece of software: mod_security for Apache.

Create an Encrypted Loopback Device

Post date: April 12, 2005, 18:04 Category: Security Views: 3945 Comments
Tutorial quote: A loopback device is a very special device that allows you to mount a normal file as it was a physical device. loopbacks can be encrypted: this becomes very useful sometimes.

Consider, as na example, that you need to encrypt a few files, nothing big, let's say 100 MB or so. Encrypting an entire partition could be too much. Then a cryptoloop could be the right solution to your problem.

Linux Security HOWTO

Post date: April 12, 2005, 17:04 Category: Security Views: 3450 Comments
Tutorial quote: This document is a general overview of security issues that face the administrator of Linux systems. It covers general security philosophy and a number of specific examples of how to better secure your Linux system from intruders. Also included are pointers to security-related material and programs.

Bind chroot howto

Post date: April 12, 2005, 17:04 Category: Security Views: 3157 Comments
Tutorial quote: This document describes how to install the DNS server Bind on Debian so that it runs out of a chroot jail for security reasons.

Monitoring all filesystem modifications

Post date: April 12, 2005, 07:04 Category: Security Views: 4268 Comments
Tutorial quote: After loading this kernel module you can monitor all file system alterations by simply typing: cat /dev/fsysmon

It's original purpose was to feed a daemon with data but nevertheless I found it to be even more useful as a standalone project.
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