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Linux

NFS over CIPE-VPN tunnels

Post date: May 23, 2005, 16:05 Category: Network Views: 2867 Comments
Tutorial quote: The Network File System (NFS) is a standard protocol for sharing file services with Linux and Unix computers. It is a distributed file system that enables local access to remote disks and file systems and is based on the client\server architecture. Although easy to configure, it is typically used only to transfer data over an intranet or LAN because of its transparency and security potholes when exposed to the risks of the Internet. However, it still can be employed -- without compromising security -- to share files over the Internet by configuring it to run on a Virtual Private Network (VPN) connection. This article will show you how to set up NFS to run over a CIPE-VPN connection between two Linux systems.
Debian

How To Set Up A Load-Balanced MySQL Cluster

Post date: March 31, 2006, 19:03 Category: Software Views: 3813 Comments
Tutorial quote: This tutorial shows how to configure a MySQL 5 cluster with three nodes: two storage nodes and one management node. This cluster is load-balanced by a high-availability load balancer that in fact has two nodes that use the Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).

In this document I use Debian Sarge for all nodes. Therefore the setup might differ a bit for other distributions. The MySQL version I use in this setup is 5.0.19. If you do not want to use MySQL 5, you can use MySQL 4.1 as well, although I haven't tested it.

This howto is meant as a practical guide; it does not cover the theoretical backgrounds. They are treated in a lot of other documents in the web.
Debian

Intrusion Detection With BASE And Snort

Post date: July 16, 2006, 16:07 Category: Security Views: 4514 Comments
Tutorial quote: This tutorial shows how to install and configure BASE (Basic Analysis and Security Engine) and the Snort intrusion detection system (IDS) on a Debian Sarge system. BASE provides a web front-end to query and analyze the alerts coming from a Snort IDS system. With BASE you can perform analysis of intrusions that Snort has detected on your network.

Scenario: A linux server running Debian Sarge 3.1 setup according to Falko's - The Perfect Setup - Debian Sarge (3.1).
Let's assume we have one working website (www.example.com) and that the document root is: /var/www/www.example.com/web
The IP of the server is 192.168.0.5 and it's using eth0 as network interface name.
OpenSUSE

TrueCrypt - Free opensource on the fly Disk Encryption tool

Post date: August 7, 2008, 22:08 Category: Security Views: 3368 Comments
Tutorial quote: TrueCrypt is a free opensource software system for establishing and maintaining an on-the-fly-encrypted volume (data storage device). On-the-fly encryption means that data are automatically encrypted or decrypted right before they are loaded or saved, without any user intervention. No data stored on an encrypted volume can be read (decrypted) without using the correct password/keyfile(s) or correct encryption keys. Entire file system is encrypted (e.g., file names, folder names, contents of every file, free space, meta data, etc).
Debian

Protect Your Files With TrueCrypt 5.1a On Debian Etch (GNOME)

Post date: May 13, 2008, 10:05 Category: Desktop Views: 3205 Comments
Tutorial quote: This document describes how to set up TrueCrypt 5.1a on Debian Etch (GNOME). Taken from the TrueCrypt page: "TrueCrypt is a software system for establishing and maintaining an on-the-fly-encrypted volume (data storage device). On-the-fly encryption means that data are automatically encrypted or decrypted right before they are loaded or saved, without any user intervention. No data stored on an encrypted volume can be read (decrypted) without using the correct password/keyfile(s) or correct encryption keys. Entire file system is encrypted (e.g., file names, folder names, contents of every file, free space, meta data, etc)."
Debian

Network profiles for a laptop

Post date: December 23, 2005, 00:12 Category: Network Views: 2541 Comments
Tutorial quote: This article explains how to configure networking in a very pleasant way, so that it works automatically wherever you go. It is adaptable to lots of uses, and may be usefull even if you don't use Wifi but connect to multiple networks.
Linux

Prep for Tomorrow with an IPv6 Testbed

Post date: April 14, 2005, 12:04 Category: Network Views: 2347 Comments
Tutorial quote: Yes, friends, I am afraid you do have to start paying attention to IPv6 (Internet Protocol version 6). It's on its way, it's inevitable, and us ace network admins must learn to use it.
Ubuntu

Database Server With postgresql and pgadmin3 in Ubuntu

Post date: April 20, 2008, 18:04 Category: Software Views: 3514 Comments
Tutorial quote: PostgreSQL is a powerful, open source relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major operating systems, including Linux, UNIX (AIX, BSD,HP-UX, SGI IRIX, Mac OS X, Solaris, Tru64), and Windows. It is fully ACID compliant, has full support for foreign keys, joins, views, triggers, and stored procedures (in multiple languages). It includes
most SQL92 and SQL99 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and
TIMESTAMP. It also supports storage of binary large objects, including pictures, sounds, or video. It has native programming interfaces for C/C++, Java, .Net, Perl, Python, Ruby, Tcl, ODBC, among others.

OSX

Mac OS X Server Administrator's Guide

Post date: June 8, 2005, 05:06 Category: System Views: 6168 Comments
Tutorial quote: Includes information on how Mac OS X Server software works
and strategies for using it with your network
OpenSUSE

SuSE 10.1 Installation Manual

Post date: October 28, 2006, 01:10 Category: Installing Views: 6535 Comments
Tutorial quote: A simple guide to openSUSE 10.1 installation with screenshots. Also explains the process of network install and has a section on post-install configuration.
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