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Ubuntu

How To Upgrade Ubuntu 9.10 To 10.04 (Desktop & Server)

Post date: April 30, 2010, 13:04 Category: Miscellaneous Views: 4321 Comments
Tutorial quote: Yesterday the new Ubuntu 10.04 (Lucid Lynx) was released. This guide shows how you can upgrade your Ubuntu 9.10 desktop and server installations to Ubuntu 10.04.
Debian

Speedup DNS requests with a local cache

Post date: April 26, 2006, 09:04 Category: Network Views: 3529 Comments
Tutorial quote: One common server bottleneck is DNS lookups. Many common server tasks such as from looking up hostnames to write Apache logfiles and processing incoming mail require the use of DNS queries. If you're running a high-traffic system it might be useful to cache previous lookups.
Ubuntu

Installing Tomcat6 With SUN-Java & Apache2 Integration On Ubuntu 10.04

Post date: February 2, 2011, 13:02 Category: Installing Views: 3356 Comments
Tutorial quote: Apache Tomcat (or Jakarta Tomcat or simply Tomcat) is an open source servlet container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, and provides a "pure Java" HTTP web server environment for Java code to run. Tomcat should not be confused with the Apache web server, which is a C implementation of an HTTP web server; these two web servers are not bundled together. Apache Tomcat includes tools for configuration and management, but can also be configured by editing XML configuration files.
Debian

Automated distributed backups for laptops

Post date: February 14, 2006, 21:02 Category: Network Views: 3346 Comments
Tutorial quote: This document will describe the setup I made for automating the backup tasks for all laptops here in the house. My servers use the same backup server and infrastructure, but right now they don't have the checks and scripts because they are online 24/7 and my backup server is triggering the backup process. This is however not true at all for the laptops.

Laptops can be at different places, powered down, suspended, put to sleep etc. So I needed a different approach for them.
Ubuntu

Installing Xen On An Ubuntu 7.10 Server From The Ubuntu Repositories

Post date: November 6, 2007, 10:11 Category: Installing Views: 4048 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install Xen on an Ubuntu Gutsy Gibbon (Ubuntu 7.10) server system (i386). You can find all the software used here in the Ubuntu repositories, so no external files or compilation are needed.
CentOS

Configuring Samba 3.0 To Use The ADS Security Mode (CentOS)

Post date: June 25, 2007, 23:06 Category: Installing Views: 5283 Comments
Tutorial quote: The intent of this article is to show you how to configure your Linux machine and Samba server to participate in a Windows 2003 Active Directory domain as a Member Server using Kerberos authentication. This involves using the security = ADS security mode in Samba.
Linux

Hardening Linux: a 10 step approach to a secure server

Post date: June 22, 2005, 10:06 Category: Security Views: 4505 Comments
Tutorial quote: The Internet has become a far more dangerous place than it was 20 years ago. Nowadays, Operating System and application security is an integral part of a server configuration and, while firewalls are very important, they are not the panacea.

This list of steps is intended as a guideline with a practical approach. We’ll try to provide a complete picture without getting into unnecesary details. This list won’t replace a good book on secure systems administration, but it will be useful as a quick guide.

Before we get started it’s worth to mention that security is not a status: it’s just a process. The correct initial setup of the server only provides a good start and helps you get half the way through. But you actually need to walk the other half of the road, by providing proper security vigilance, monitoring and updating.
Unix+clones

High Performance MySQL

Post date: December 1, 2006, 04:12 Category: Optimizing Views: 6800 Comments
Tutorial quote: The operating system your MySQL server runs on and the server's configuration can be just as important to your server's performance as the indexes, schema, or queries themselves. In this chapter, we will help you understand how to tune your server to improve performance, as opposed to tuning schema or queries. We'll be looking at changes to your hardware, operating system, and MySQL configuration to see what effects they have on overall performance.

We assume that you've already made efforts to boost the performance of your queries. If you haven't done that already, stop now and read Chapter 4 and Chapter 5 to get a handle on optimizing your queries and your application code. Only then should you worry about server settings. Hardware is often not the solution to MySQL performance problems. Poorly optimized queries can slow you down far more than not having the latest CPU or SCSI disk. To put this in perspective, one of the MySQL AB trainers even says that changing hardware might, in the best cases, give you a 10-fold performance increase. But tuning queries (and schemas) can often give you 1000-fold performance increase. Seriously.

Some topics covered in this chapter are platform-specific. The authors' knowledge of the various platforms on which MySQL runs is limited. In many cases, you'll need to consult your local documentation for various operating system tools and specifics.

We start with an overview of the factors that limit performance and then look more in depth at RAID, hardware, and operating system issues. The chapter finishes with a discussion of techniques you can use to locate, identify, and fix bottlenecks.
Ubuntu

Howto Install Nginx webserver in Ubuntu 8.04 (Hardy Heron)

Post date: August 4, 2008, 07:08 Category: Software Views: 5060 Comments
Tutorial quote: Nginx (pronounced “engine x”) is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. Written by Igor Sysoev in 2005, Nginx now hosts between 1% and 4% of all domains worldwide. Although still in beta, Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption.

Ubuntu

How To Upgrade Ubuntu 8.04 (Hardy) To 8.10 (Intrepid) (Desktop & Server)

Post date: October 31, 2008, 10:10 Category: Miscellaneous Views: 4416 Comments
Tutorial quote: Today the new Ubuntu 8.10 (Intrepid Ibex) has been released. This guide shows how you can upgrade your Ubuntu 8.04 desktop and server installations to Ubuntu 8.10.
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