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Debian

Stack Smashing Protection for Debian

Post date: June 23, 2006, 22:06 Category: Security Views: 2875 Comments
Tutorial quote: Since we last covered the use of Stack Smashing Protection (SSP) the default compiler for Debian Sid has been upgraded to include it, with no need for custom patching. Read on for a brief demonstration of how it can be used to prevent attacks.

The default C compiler for Sid, which will be used in Etch too, is GCC v4.1. This releasecontains the SSP patch which previously needed to be applied manually (we demonstrated applying this patch for GCC v3.4 a long time ago).

Since the SSP patch is included in the compiler by default it is suddenly a lot easier to start working with it.
Gentoo

GCC extension for protecting from stack-smashing attacks

Post date: April 20, 2005, 10:04 Category: Security Views: 3081 Comments
Tutorial quote: The Stack-Smashing Protector (SSP, formerly ProPolice) is perhaps one of the most sophisticated yet simplistic protective compiler technologies to date which makes use of canary values by rearranging local variables and function pointers. When (ssp) is enabled it can prevent many forms of the common return-to-libc attack. It is implemented as a patch to GCC which will automatically insert protection code into your programs at compile time. It is developed by Hiroaki Etoh at IBM.
Debian

How To Speed Up Drupal 7.7 With Boost And nginx (Debian Squeeze)

Post date: August 21, 2011, 18:08 Category: Miscellaneous Views: 2171 Comments
Tutorial quote: This tutorial shows how you can speed up your Drupal 7.7 installation on a LAMP stack (Debian Squeeze) with the help of Boost and nginx. Boost provides static page caching for Drupal enabling a very significant performance and scalability boost for sites that receive mostly anonymous traffic. Boost makes sure that your logged-in users always get fresh content by not caching pages for logged-in users. In a first step I will show how to make your site faster by enabling Boost on a normal LAMP stack (Apache2, PHP, MySQL), and in a second step I explain how to make your site even faster by using nginx as a reverse proxy sitting in front of Apache and delivering the static HTML pages cached by Boost. nginx delivers static files a lot of faster than Apache and uses less memory/CPU.
OpenSUSE

Ext4 support on OpenSuse 11.1

Post date: January 5, 2009, 10:01 Category: System Views: 3981 Comments
Tutorial quote: Kernel 2.6.28 Released

Torvald released the final version of Linux Kernel 2.6.28. It's not a big change since RC 9, but it finally appeared as final after lots of discussion on LKML whether to postpone the release or release earlier and make the merge window longer as the developers goes on long holidays.

Here's some summary of Kernel 2.6.28 (taken from KernelNewbies): Linux 2.6.28 adds the first version of Ext4 as a stable filesystem, the much-expected GPU memory manager which will be the foundation of a renewed graphic stack, support for Ultra Wide Band (Wireless USB, UWB-IP), memory management scalability and performance improvements, a boot tracer, disk shock protection, the phonet network protocol, support of SSD discard requests, transparent proxy support, several new network drivers, controlable IO CPU affinity, high-resolution poll()/select(), support of a minimal "dummy" policy in SELinux, tracing improvements, x86 x2APIC support, a fb driver for VIA UniChrome devices, Mitac Mio A701 ARM-based smartphone support, some new drivers, improved device support, and many other small improvements and fixes.
Debian

Using mixmaster to send anonymous email

Post date: January 26, 2007, 07:01 Category: Network Views: 31277 Comments
Tutorial quote: This is a document that explains how to install mixmaster and how to use it to send email, in an anonymous and secure fashion.

Mixmaster is described by the debian package system as:

Mixmaster is the reference implementation of the type II remailer protocol which is also called Mixmaster.

An anonymous remailer is a computer service that privatizes your email. A remailer allows you to send electronic mail to a Usenet news group or to a person without the recipient knowing your name or your email address. Anonymous remailers provide protection against traffic analysis.
Debian

How To Combat Viruses Using Your Postfix Configuration

Post date: September 18, 2006, 14:09 Category: Security Views: 3381 Comments
Tutorial quote: In this guide you will learn how to tweak the HowtoForge mail guide for Postfix (+Auth SMTP + Quota), setup to give better Virus protection.
OpenSUSE

Protection from malware using Squid proxy server

Post date: September 28, 2008, 09:09 Category: Security Views: 4393 Comments
Tutorial quote: Malware (for "malicious software") is any program or file that is harmful to a computer user. Thus, malware includes computer viruses, worms, Trojan horses, and also spyware, programming that gathers information about a computer user without permission.
Ubuntu

Virus Protection With AVG Antivirus On Ubuntu Feisty Fawn

Post date: September 10, 2007, 22:09 Category: Security Views: 3899 Comments
Tutorial quote: This tutorial shows how you can install and use AVG Antivirus on an Ubuntu Feisty Fawn desktop. Although there are not many Linux viruses out there, this can be useful if you often exchange files with Windows users - it can help you to not pass on any Windows viruses (that do not do any harm to Linux systems) to Windows users. AVG Antivirus for Linux is free for private and non-commercial use.
Ubuntu

Virus Protection With F-PROT Antivirus On Ubuntu Feisty Fawn

Post date: September 24, 2007, 08:09 Category: Security Views: 3786 Comments
Tutorial quote: This tutorial shows how you can install and use F-PROT Antivirus on an Ubuntu Feisty Fawn desktop. Although there are not many Linux viruses out there, this can be useful if you often exchange files with Windows users - it can help you to not pass on any Windows viruses (that do not do any harm to Linux systems) to Windows users. F-PROT Antivirus for Linux is free for home use.
Fedora

How To Harden PHP5 With Suhosin On Fedora 7

Post date: July 25, 2007, 23:07 Category: Security Views: 3287 Comments
Tutorial quote: This tutorial shows how to harden PHP5 with Suhosin on a Fedora 7 server. From the Suhosin project page: "Suhosin is an advanced protection system for PHP installations that was designed to protect servers and users from known and unknown flaws in PHP applications and the PHP core. Suhosin comes in two independent parts, that can be used separately or in combination. The first part is a small patch against the PHP core, that implements a few low-level protections against bufferoverflows or format string vulnerabilities and the second part is a powerful PHP extension that implements all the other protections."
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