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MySQL Database Tutorials

Post date: January 31, 2011, 07:01 Category: Software Views: 3510 Comments
Tutorial quote: Many people tell me they aren’t very fond of scripts, because the install frightens them a bit. And it’s true: creating a database, importing tables, your site’s root path… if you don’t know what you’re doing, this looks pretty complicated.
Luckily, it is not, once you get the hang of it.

KVM & OpenVZ Virtualization And Cloud Computing With Proxmox VE

Post date: February 17, 2009, 12:02 Category: Installing Views: 18981 Comments
Tutorial quote: Proxmox VE (virtual environment) is a distribution based on Debian Etch (x86_64); it provides an OpenSource virtualization platform for running virtual machines (OpenVZ and KVM) and comes with a powerful, web-based control panel (it includes a web-based graphical console that you can use to connect to the virtual machines). With Proxmox VE, you can even create a cluster of virtualization hosts and create/control virtual machines on remote hosts from the control panel. Proxmox VE also supports live migration of virtual machines from one host to the other. This guide shows how you can use Proxmox VE to control KVM and OpenVZ virtual machines and how to create a small computing cloud with it.

Custom Monitoring MySQL and SNMP with BixData

Post date: February 3, 2007, 00:02 Category: Software Views: 3157 Comments
Tutorial quote: With BixData you can monitor your servers as well as VMware and Xen. BixData includes pre-built plugins for things like CPU, Memory, Disk, etc. but any good monitoring tool needs to be customizable. BixData includes the basic ability to run scripts and record their exit values, similar to Nagios Plugins. BixData 2.7 adds support for importing data in more complex formats. This allows you to monitor almost anything. I'll go through the steps showing you how to monitor MySQL locally where an agent is installed and then the steps to monitor a device remotely through SNMP. The advantage of BixData is that any data available through a BixAgent works with the standard tools such as the situation room, scoreboards, notifications and the reporting system. All data are stored in standard SQL tables and are easily accessible.

Creating a WebDAV server with apache2

Post date: May 26, 2005, 16:05 Category: Network Views: 4864 Comments
Tutorial quote: I needed a way to share information (both read and write) as easy as possible with friends in a quite restricted environment (firewall). In many cases, WebDAV which uses standard HTTP port 80 for comunication is a good solution for a file server application.

Benchmarking Filesystems Part II

Post date: January 6, 2006, 22:01 Category: Benchmarks Views: 4675 Comments
Tutorial quote: After the last article was published, I have received more than a dozen requests for a second filesystem benchmark using the 2.6 kernel. Since that time, I have converted entirely to XFS for every Linux machine I use, so I may be a bit bias regarding the XFS filesystem. I tried to keep the hardware roughly the same. Instead of a Western Digital 250GB and Promise ATA/100 controller, I am now am using a Seagate 400GB and Maxtor ATA/133 Promise controller. The physical machine remains the same, there is an additional 664MB of swap and I am now running Debian Etch. In the previous article, I was running Slackware 9.1 with custom compiled filesystem utilities. I've added a small section in the beginning that shows the filesystem creation and mount time, I've also added a graph showing these new benchmarks. After the first round of benchmarks, I received a sleuth of e-mails asking for the raw numbers. The numbers are now included in tables at the end of this e-mail for both the last and current set of benchmarks.

Creating A DNS Cache With djbdns

Post date: May 5, 2007, 22:05 Category: Installing Views: 3709 Comments
Tutorial quote: Building a local DNS cache will speed up your internet connection since the time for the translation job (converting domain names into IP addresses) will become negligible with the assumption that the DNS cache gets the information from the parent DNS.

Unattended, Encrypted, Incremental Network Backups

Post date: August 12, 2005, 18:08 Category: Network Views: 3184 Comments
Tutorial quote: This article describes a complete system for creating a centralised backup system, complete with strong encryption. Incremental backups are used to minimize the bandwidth, and time, used.

How to set up the SUSE Linux Virtual I/O Server

Post date: May 28, 2005, 00:05 Category: Network Views: 4023 Comments
Tutorial quote: Reduce your operation costs for complex environments by creating efficient and flexible virtualisation capabilities. Nigel Griffiths describes the benefits of the IBM® POWER5™ servers and provides examples on how to set up the environment for pSeries®, p5, and eServer™ OpenPower systems.

Creating Screencasts With recordMyDesktop On Ubuntu 9.04

Post date: August 6, 2009, 11:08 Category: Desktop Views: 2120 Comments
Tutorial quote: recordMyDesktop is a desktop session recorder for GNU/Linux that attemps to be easy to use, yet also effective at its primary task. It produces files using only open formats. These are theora for video and vorbis for audio, using the ogg container. This tutorial shows how to install and use recordMyDesktop on Ubuntu 9.04.

Configuring Apache for Maximum Performance

Post date: February 12, 2006, 09:02 Category: Optimizing Views: 3796 Comments
Tutorial quote: Apache is an open-source HTTP server implementation. It is the most popular web server on the Internet; the December 2005 Web Server Survey conducted by Netcraft [1] shows that about 70% of the web sites on Internet are using Apache.

Apache server performance can be improved by adding additional hardware resources such as RAM, faster CPU, etc. But most of the time, the same result can be achieved by custom configuration of the server. This article looks into getting maximum performance out of Apache with the existing hardware resources, specifically on Linux systems. Of course, it is assumed that there is enough hardware resources - especially enough RAM that the server isn't swapping frequently. First two sections look into various Compile-Time and Run-Time configuration options. The Run-Time section assumes that Apache is compiled with prefork MPM. HTTP compression and caching is discussed next. Finally, using separate servers for serving static and dynamic contents is covered. Basic knowledge of compiling and configuring Apache and Linux are assumed.
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