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MySQL Master Master Repliction

Post date: September 18, 2006, 14:09 Category: Benchmarks Views: 5799 Comments
Tutorial quote: When we need to replication mysql servers with each other some time for synchronizing for HA. In my case I need the mysql servers for which two masters must be synchronized with each other so that if any one drops down, other could take care of the one and data must not be lost. Similarly when one goes up, it will still be used as slave for the live one.

Here is a basic step by step tutorial, that will cover the mysql master and slave replication and also will describe the mysql master and master replication.
Linux

Measuring the Performance of HTTP Web Servers using ApacheBench (ab)

Post date: January 24, 2010, 06:01 Category: Benchmarks Views: 4713 Comments
Tutorial quote: ApacheBench is a command line utility for measuring the performance of HTTP web servers, in particular the Apache HTTP Server. It was designed to give an idea of the performance that a given Apache installation can provide. In particular, it shows how many requests per second the server is capable of serving.
Debian

High-Availability Load Balancer With HAProxy/Wackamole/Spread On Debian Etch

Post date: January 6, 2009, 12:01 Category: Installing Views: 3603 Comments
Tutorial quote: This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy, Wackamole, and Spread on Debian Etch. The load balancer sits between the user and two (or more) backend Apache web servers that hold the same content. Not only does the load balancer distribute the requests to the two backend Apache servers, it also checks the health of the backend servers. If one of them is down, all requests will automatically be redirected to the remaining backend server. In addition to that, the two load balancer nodes monitor each other using Wackamole and Spread, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service. HAProxy is session-aware, which means you can use it with any web application that makes use of sessions (such as forums, shopping carts, etc.).
Debian

Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Keepalived On Debian Etch

Post date: October 29, 2007, 09:10 Category: Network Views: 4691 Comments
Tutorial quote: This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and keepalived on Debian Etch. The load balancer sits between the user and two (or more) backend Apache web servers that hold the same content. Not only does the load balancer distribute the requests to the two backend Apache servers, it also checks the health of the backend servers. If one of them is down, all requests will automatically be redirected to the remaining backend server. In addition to that, the two load balancer nodes monitor each other using keepalived, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service. HAProxy is session-aware, which means you can use it with any web application that makes use of sessions (such as forums, shopping carts, etc.).
Debian

Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Heartbeat On Debian Etch

Post date: November 7, 2007, 11:11 Category: Network Views: 4495 Comments
Tutorial quote: This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and heartbeat on Debian Etch. The load balancer sits between the user and two (or more) backend Apache web servers that hold the same content. Not only does the load balancer distribute the requests to the two backend Apache servers, it also checks the health of the backend servers. If one of them is down, all requests will automatically be redirected to the remaining backend server. In addition to that, the two load balancer nodes monitor each other using heartbeat, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service. HAProxy is session-aware, which means you can use it with any web application that makes use of sessions (such as forums, shopping carts, etc.).
Debian

Installing And Using OpenVZ On Debian Etch

Post date: May 25, 2008, 09:05 Category: Installing Views: 2887 Comments
Tutorial quote: In this HowTo I will describe how to prepare a Debian Etch server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.
Debian

Retrieving Emails From Remote Servers With getmail (Debian Etch)

Post date: June 15, 2007, 22:06 Category: Software Views: 3361 Comments
Tutorial quote: Getmail is a program for retrieving emails from remote servers; it is very similar to fetchmail, but more flexible. For example, it can be configured to deliver mails directly to a Maildir or mbox mailbox without the need for an MTA such as Postfix, but of course it can also pipe the mails through an MTA if you want. Getmail can use so called filters such as SpamAssassin and ClamAV to scan the mails, and you can even tell getmail to delete mails on the original server only after a certain number of days.
Debian

Installing And Using OpenVZ On Debian Squeeze (AMD64)

Post date: February 17, 2011, 15:02 Category: Installing Views: 2675 Comments
Tutorial quote: In this HowTo I will describe how to prepare a Debian Squeeze server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.
Debian

Installing And Using OpenVZ On Debian Lenny (AMD64)

Post date: March 1, 2009, 12:03 Category: Installing Views: 3055 Comments
Tutorial quote: In this HowTo I will describe how to prepare a Debian Lenny server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.
Debian

How To Block Spammers/Hackers With mod_defensible On Apache2 (Debian Etch)

Post date: July 8, 2008, 09:07 Category: Network Views: 3548 Comments
Tutorial quote: mod_defensible is an Apache 2.x module intended to block spammers/hackers/script kiddies using DNSBL servers. It will look at the client IP and check it in one or several DNSBL servers and return a 403 Forbidden page to the client. This guide shows how to install and use it with Apache 2 on a Debian Etch server.
Web-based applications and online marketing solutions - LumoLink