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Gentoo

HOWTO Linux Virtual Hosting Server

Post date: April 9, 2006, 14:04 Category: Software Views: 7337 Comments
Tutorial quote: This document will explain how to install and configure a mail server capable of handling hundreds of domains and users. This how-to uses Postfix, Courier-imap, Mysql, and Apache as the core of this virtual system. If these packages don't appeal to you, Gentoo has a number of how-to's built around other MTA's or databases.
Unix+clones

Unattended rdiff-backup HOWTO

Post date: April 3, 2006, 08:04 Category: Software Views: 4390 Comments
Tutorial quote: This page describes how to set up rdiff-backup to run, as a non-root user, unattended from a crontab. We will utilize features of rdiff-backup and OpenSSH to secure the setup as much as possible.
Unix+clones

Two-in-one DNS server with BIND9

Post date: April 1, 2006, 05:04 Category: Software Views: 4413 Comments
Tutorial quote: This tutorial shows you how to configure BIND9 DNS server to serve an internal network and an external network at the same time with different set of information. To accomplish that goal, a new feature of BIND9 called view is used. As a tutorial it'll walk you through the whole set up, but initial knowledge of BIND and DNS is required, there are plenty of documents that cover that information on the Internet.
Linux

Network Monitoring with Zabbix

Post date: March 31, 2006, 21:03 Category: Software Views: 5530 Comments
Tutorial quote: ZABBIX is software that monitors numerous parameters of a network and the health and integrity of servers. ZABBIX uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event. This allows a fast reaction to server problems. ZABBIX offers excellent reporting and data visualisation features based on the stored data. This makes ZABBIX ideal for capacity planning.
Debian

How To Set Up A Load-Balanced MySQL Cluster

Post date: March 31, 2006, 19:03 Category: Software Views: 4155 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

PostgreSQL Database Server Configuration in Debian

Post date: March 24, 2006, 17:03 Category: Software Views: 2611 Comments
Tutorial quote: PostgreSQL is a fully featured object-relational database management system. It supports a large part of the SQL standard and is designed to be extensible by users in many aspects. Some of the features are: ACID transactions, foreign keys, views, sequences, subqueries, triggers, user-defined types and functions, outer joins, multiversion concurrency control. Graphical user interfaces and bindings for many programming languages are available as well.
Debian

Installing SVN with apache on debian

Post date: March 20, 2006, 20:03 Category: Software Views: 3289 Comments
Tutorial quote: Today I started to set up a SVN repository for our final year project. I tried to setup a SVN server using Apache2 so that the SVN repository is available to the client through the WebDAV/DeltaV protocol. Read on for a trial-and-error introduction.

The Version Control with Subversion book (by Ben Collins-Sussman, Brian W. Fitzpatrick & C. Michael Pilato) was very useful to me when I struggled with SVN. The e-version of the book also available for free.
Unix+clones

Installing and securing Squid

Post date: March 13, 2006, 15:03 Category: Software Views: 5279 Comments
Tutorial quote: Squid is a high-performance proxy caching server for web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid supports SSL, extensive access controls, and full request logging. By using the lightweight Internet Cache Protocol, Squid caches can be arranged in a hierarchy or mesh for additional bandwidth savings.

After the installation and base configuration of squid we will add another layer of security by chrooting it.
Unix+clones

HOW TO: Setup RoundCube Webmail on Your Server

Post date: February 28, 2006, 07:02 Category: Software Views: 7497 Comments
Tutorial quote: I recently heard about a new webmail client from my friend Justin, who’s infatuated with it. RoundCube, a “browser-based multilingual IMAP client with an application-like user interface,” is the latest and greatest webmail client.
Unix+clones

Easy Automated Snapshot-Style Backups with Linux and Rsync

Post date: February 1, 2006, 00:02 Category: Software Views: 3472 Comments
Tutorial quote: This document describes a method for generating automatic rotating "snapshot"-style backups on a Unix-based system, with specific examples drawn from the author's GNU/Linux experience. Snapshot backups are a feature of some high-end industrial file servers; they create the illusion of multiple, full backups per day without the space or processing overhead. All of the snapshots are read-only, and are accessible directly by users as special system directories. It is often possible to store several hours, days, and even weeks' worth of snapshots with slightly more than 2x storage. This method, while not as space-efficient as some of the proprietary technologies (which, using special copy-on-write filesystems, can operate on slightly more than 1x storage), makes use of only standard file utilities and the common rsync program, which is installed by default on most Linux distributions. Properly configured, the method can also protect against hard disk failure, root compromises, or even back up a network of heterogeneous desktops automatically.
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