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Unix+clones

High Performance MySQL

Post date: December 1, 2006, 04:12 Category: Optimizing Views: 6733 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.
Unix+clones

Security Testing your Apache Configuration with Nikto

Post date: August 29, 2006, 16:08 Category: Security Views: 4488 Comments
Tutorial quote: By now you've got the perfect setup for your new Ubuntu 6.0.6 (Dapper Drake) box. You may have even followed the excellent Intrusion Detection and Prevention with BASE and Snort tutorial. And as an added precaution you installed DenyHosts to prevent hack attempts via ssh. But now that you've got your new LAMP server on the internet, how can you tell that your new web server is secure? You test it, of course!
Debian

Majordomo Configuration

Post date: April 10, 2006, 18:04 Category: Network Views: 2995 Comments
Tutorial quote: Majordomo is a program which automates the management of Internet mailing lists. Commands are sent to Majordomo via electronic mail to handle all aspects of list maintenance. Once a list is set up, virtually all operations can be performed remotely by email, requiring no intervention upon the postmaster of the list site.
Solaris

Configuring Sendmail

Post date: April 13, 2005, 03:04 Category: Network Views: 4894 Comments
Tutorial quote: Sendmail has the reputation of having the most hideous configuration file in the history of mankind. It's extremely long and incredibly cryptic. However, it is this very complexity that has made it the most popular MTA (Mail Transport Agent) on the Internet. Its' flexibility allows sendmail to handle the most demanding, disjointed mail routing and serving configurations you can dream up.
Linux

Kernel parameters for enhance security

Post date: October 28, 2008, 05:10 Category: Security Views: 4018 Comments
Tutorial quote: The following list shows tunable kernel parameters you can use to secure your Linux server against attacks.

For each tunable kernel parameters you need to be add it to the /etc/sysctl.conf configuration file to make the change permanent after reboots
Linux

MySQLTuner - Performance Tunning MySQL on Linux

Post date: January 24, 2010, 06:01 Category: Optimizing Views: 5478 Comments
Tutorial quote: MySQLTuner is a script written in Perl that allows you to review a MySQL installation quickly and make adjustments to increase performance and stability. The current configuration variables and status data is retrieved and presented in a brief format along with some basic performance suggestions.
OpenSUSE

Installation and Configuration - Jinzora Streaming Media Server on OpenSuse

Post date: October 4, 2008, 18:10 Category: Multimedia Views: 6503 Comments
Tutorial quote: Jinzora enables you to stream your digital media to any internet connected computer, your home stereo set or a hardware jukebox device. Jinzora can organise & tag your music files and download album covers and reviews. More info: www.jinzora.com
Ubuntu

Tweaking your Synaptics Touchpad (laptops) : Ubuntu (6.06.1 / 6.10)

Post date: December 11, 2006, 15:12 Category: Hardware Views: 7635 Comments
Tutorial quote: This tutorial will outline how to configure your synaptics touchpad (for laptops) via a nice pretty GUI interface. Allowing configuration for general settings (on / off, etc) to scrolling and tapping. You can even change the settings so that you can do a 360 around your touchpad to scroll up/down!
CentOS

Icinga (Monitoring Solution) Installation And Configuration On CentOS

Post date: January 21, 2011, 12:01 Category: Installing Views: 4134 Comments
Tutorial quote: Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. Scalable and extensible, Icinga can monitor complex, large environments across dispersed locations.
Ubuntu

Installing ubuntu-system-panel (USP) On Ubuntu 8.10

Post date: December 11, 2008, 12:12 Category: Desktop Views: 4256 Comments
Tutorial quote: ubuntu-system-panel is a simple launcher for the GNOME desktop, providing easy access to Places, Applications and common configuration items for your computer. This guide shows how to install and configure it on an Ubuntu 8.10 desktop.
Web-based applications and online marketing solutions - LumoLink