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Unix+clones

How to scan your Linux-Distro for Root Kits

Post date: May 19, 2006, 18:05 Category: Security Views: 3223 Comments
Tutorial quote: Do you suspect that you have a compromised system ?
Check now for root kits that the intruder may have installed !!!

So... What in the hell is a root kit ???
A root kit is a collection of programs that intruders often install after they have compromised the root account of a system.
These programs will help the intruders clean up their tracks, as well as provide access back into the system.
Root kits will sometimes leave processes running so that the intruder can come back easily and without the system administrator's knowledge !

Solution....
Scripts like chkrootkit will do the job for you automatically.
Unix+clones

CLI Magic: OpenSSH + Bash

Post date: January 25, 2006, 20:01 Category: Network Views: 2974 Comments
Tutorial quote: As a system administrator, I have used OpenSSH's piping abilities more times than I can remember. The typical ssh call gets me access to systems for administration with a proven identity, but ssh is capable of so much more. In combination with bash's subshell invocation, OpenSSH can distribute the heavy work, reduce trace interference on a system under test, and make other "impossible" tasks possible. I've even used it to make Microsoft Windows remote administration easier.

In the examples below, I have tried to avoid GNU-specific idioms for tools which have non-GNU counterparts. This practice improves portability of shell scripts in heterogeneous environments.
OpenSUSE

Mac OS like Dock in openSUSE (Avant Window Navigator)

Post date: September 26, 2008, 16:09 Category: Desktop Views: 3752 Comments
Tutorial quote: Avant Window Navigator (AWN/Awn) is a dock-like navigation bar for the linux desktop that positions itself at the bottom of the screen. It can be used to keep track of open windows and behaves like a normal window list.
Gentoo

Shoutcast Streaming Server Guide

Post date: May 4, 2005, 17:05 Category: Network Views: 6511 Comments
Tutorial quote: This guide explains how to set up a Shoutcast streaming music server. It covers situations when the server and transcoder are on the same machine, and when they are on different macines. The entire installation should take between 15-30 minutes at most.

The system works by taking mp3 files and feeding them into a transcoder. The transcoder in turn re-encodes the music and passes it to the server. The server receives the stream and when listeners connect, the server splits the stream so that each listener can hear the mp3's.
OpenSUSE

Youtube-dl - Download videos from Youtube in openSUSE

Post date: August 13, 2008, 21:08 Category: Desktop Views: 3750 Comments
Tutorial quote: youtube-dl is a small free opensource command-line program to download videos from YouTube.com. youtube-dl is a platform independent tool that works on UNIX, Linux, Mac OSX and Windows. The latest version of Youtube-dl is 2008.08.09 and requires the Python interpreter, version 2.4 or later.
Debian

Full Mail Server Solution With Virtual Domains & Users (Debian Etch, Postfix, MySQL, DoveCot, DSpam, ClamAV, Postgrey, RBL)

Post date: October 31, 2007, 09:10 Category: Installing Views: 4047 Comments
Tutorial quote: This guide describes how to set up a full email solution in Debian Linux (all code is from Debian Etch). I was asked to design a secure, scalable, portable solution for a small company. While the guide references many servers, the company only had 4 physical machines, Xen was used to virtualize the entire solution. That particular aspect of the system is not discussed in this guide, although I will try to get it into the next revision.
OpenSUSE

Katapult - KDE application launcher in openSUSE Linux

Post date: October 26, 2008, 21:10 Category: Desktop Views: 3301 Comments
Tutorial quote: Inspired by QuickSilver for Mac OS X, Katapult is an application launcher for KDE designed to allow faster access to applications, bookmarks, and other items. It is plugin-based, so it can launch anything that is has a plugin for. Its display is driven by plugins as well, so its appearance is completely customizable. It was inspired by Quicksilver for OS X.
BSD

Firewalling with OpenBSD's PF packet filter

Post date: November 27, 2006, 02:11 Category: Network Views: 7440 Comments
Tutorial quote: The tutorial is about firewalls and related functions, with examples from real life with the OpenBSD project's PF (Packet Filter). PF offers firewalling, NAT, traffic control and bandwidth management in a single, flexible and sysadmin friendly system. Targeted at the seasoned or aspiring network administrator, this half day tutorial manuscript will give you some ideas about how to control your network traffic the way you want - keeping some things outside your network, directing traffic to specified hosts or services, and of course, giving spammers a hard time.

Previously hosted at http:/www.bgnett.no/~peter/pf/, but moved to its present location due to some odd technical difficulties at bgnett.no.
Unix+clones

Streaming music with SlimServer

Post date: June 15, 2005, 16:06 Category: Network Views: 3422 Comments
Tutorial quote: Converting your CD collection into MP3 or another digital file format gives you the ability to enjoy the music on your computer and stream it all over the house and the Internet. To do the latter, however, you have to install and configure a streaming server on your computer. That might sound like a daunting task, but there is a streaming server application that makes the whole process pretty painless. SlimServer from Slim Devices is a cross-platform streaming server that runs on Windows, Linux, and Mac OS X and supports a wide range of formats, including AAC, AIFF, FLAC, Ogg Vorbis, MP3, WAV, and WMA. Although it was developed to stream music files to Slim Devices' Squeezebox2 hardware player, it works perfectly with any software MP3 player capable of working with network streams.
Unix+clones

DVD9 > DVD5 guide

Post date: May 7, 2005, 17:05 Category: Software Views: 2991 Comments
Tutorial quote: This guide lets you rip a DVD (all titles or just the main movie) and burn it on a DVD-R (4.7) that will play on your standalone player.
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