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Solaris

Set up a multipurpose Solaris web server

Post date: January 26, 2007, 07:01 Category: Miscellaneous Views: 9947 Comments
Tutorial quote: This HOWTO explains how to set up a multipurpose Solaris web server.
Debian

How To Set Up Software RAID1 On A Running LVM System (Incl. GRUB Configuration) (Debian Etch)

Post date: March 25, 2008, 10:03 Category: System Views: 3775 Comments
Tutorial quote: This guide explains how to set up software RAID1 on an already running LVM system (Debian Etch). The GRUB bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one).
Unix+clones

High Performance MySQL

Post date: December 1, 2006, 04:12 Category: Optimizing Views: 6459 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.
Linux

How To Set Up VMware Tools On Various Linux Distributions

Post date: October 2, 2007, 07:10 Category: Miscellaneous Views: 8720 Comments
Tutorial quote: This document explains how to set up the VMware Tools in the following guest operating systems: Ubuntu 7.04, Fedora 7, PCLinuxOS 2007 and Debian Etch. Installing VMware Tools in your guest operating systems will help maximize performance, provide mouse synchronization and copy & paste functionality. This article also shows a way of making VMware Tools start automatically when you start a guest operating system.
Ubuntu

How To Set Up Database Replication In MySQL On Ubuntu 9.10

Post date: January 12, 2010, 12:01 Category: Miscellaneous Views: 3385 Comments
Tutorial quote: This tutorial describes how to set up database replication in MySQL. MySQL replication allows you to have an exact copy of a database from a master server on another server (slave), and all updates to the database on the master server are immediately replicated to the database on the slave server so that both databases are in sync. This is not a backup policy because an accidentally issued DELETE command will also be carried out on the slave; but replication can help protect against hardware failures.
Debian

How To Set Up An SSL Vhost Under Apache2 On Ubuntu 9.10/Debian Lenny

Post date: January 21, 2010, 13:01 Category: Miscellaneous Views: 4105 Comments
Tutorial quote: This article explains how you can set up an SSL vhost under Apache2 on Ubuntu 9.10 and Debian Lenny so that you can access the vhost over HTTPS (port 443). SSL is short for Secure Sockets Layer and is a cryptographic protocol that provides security for communications over networks by encrypting segments of network connections at the transport layer end-to-end. We use the mod_ssl Apache module here to provide strong cryptography for Apache2 via SSL by the help of the Open Source SSL toolkit OpenSSL.
Ubuntu

Creating Snapshot Backups Of Your Desktop With TimeVault On Ubuntu 7.10

Post date: December 20, 2007, 12:12 Category: Miscellaneous Views: 3788 Comments
Tutorial quote: This document describes how to set up, configure and use TimeVault on Ubuntu 7.10. The resulting system provides a powerful backup system for desktop usage. TimeVault is a simple front-end for making snapshots of a set of directories. Snapshots are a copy of a directory structure or file at a certain point in time. Restore functionality is integrated into Nautilus - previous versions of a file or directory that has a snapshot can be accessed by examining the properties and selecting the 'Previous Versions' tab.
Debian

How To Set Up SSL Vhosts Under Nginx + SNI Support (Ubuntu 11.04/Debian Squeeze)

Post date: September 13, 2011, 09:09 Category: Miscellaneous Views: 5824 Comments
Tutorial quote: This article explains how you can set up SSL vhosts under nginx on Ubuntu 11.04 and Debian Squeeze so that you can access the vhost over HTTPS (port 443). SSL is short for Secure Sockets Layer and is a cryptographic protocol that provides security for communications over networks by encrypting segments of network connections at the transport layer end-to-end. In addition to that I will show how to make use of SNI (Server Name Indication) to allow multiple SSL vhosts per IP address.
SuSe

How To Set Up A USB-Over-IP Server And Client With OpenSUSE 11.2

Post date: January 31, 2010, 12:01 Category: Miscellaneous Views: 5932 Comments
Tutorial quote: This tutorial shows how to set up a USB-over-IP server with OpenSUSE 11.2 as well as a USB-over-IP client (also running OpenSUSE 11.2). The USB/IP Project aims to develop a general USB device sharing system over IP network. To share USB devices between computers with their full functionality, USB/IP encapsulates "USB I/O messages" into TCP/IP payloads and transmits them between computers. USB-over-IP can be useful for virtual machines, for example, that don't have access to the host system's hardware - USB-over-IP allows virtual machines to use remote USB devices.
Debian

How To Set Up A Loadbalanced High-Availability Apache Cluster

Post date: April 28, 2006, 06:04 Category: Network Views: 4652 Comments
Tutorial quote: This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another "Single Point Of Failure", we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.
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