CentOS

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Efficient High-Available LoadBalanced Cluster On CentOS 5.3 (Direct Routing Method)

Efficient High-Available LoadBalanced Cluster On CentOS 5.3 (Direct Routing Method)

This article explains how to set up an LVS cluster of load balanced virtual servers with Heartbeat and Ldirectord On CentOS 5.3.The load balancer sits between the user and two (or more) backend Apache/IIS web servers that hold the same content. Not only does the load balancer distribute the requests to the two backend Apache/IIS 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.

How To Configure ISA Proxy/Auth Setting For Yum

How To Configure ISA Proxy/Auth Setting For Yum

I was running CentOS in my LAN for my personal use and there are MS ISA servers for proxying and each user has to use his/her user name & password for Internet. So when I used my credentials in my web browser I had no problem but when I was going to do yum no success. After some googling I found this solution.

Installing Lighttpd With PHP5 And MySQL Support On CentOS 5.4

Installing Lighttpd With PHP5 And MySQL Support On CentOS 5.4

Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on a CentOS 5.4 server with PHP5 support (through FastCGI) and MySQL support.

Installing Lighttpd With PHP5 And MySQL Support On CentOS 5.3

Installing Lighttpd With PHP5 And MySQL Support On CentOS 5.3

Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on a CentOS 5.3 server with PHP5 support (through FastCGI) and MySQL support.

How To Build A Low Cost SAN

How To Build A Low Cost SAN

In today's world there is a obvious need of information sharing in every department and network storage can help us to achieve this most growing challenge. Here in this article we are focusing our concentration to make a low-cost SAN.

Paravirtualization With Xen On CentOS 5.4 (x86_64)

Paravirtualization With Xen On CentOS 5.4 (x86_64)

This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.4 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.

Expanding A Root-FS

Expanding A Root-FS

There might be the situation, that your root filesystem runs out of space, so it has to be expanded. With filesystems other than the root filesystem this could easily be done for instance with gparted. With the root filesystem this is not possible, as gparted could only expand filesystems that are not mounted, which is impossible with the root filesystem. The only way to enlarge the root filesystem is to boot from a kind of rescuesystem, Live-CD or the like, and then to expand the root filesystem. The following tutorial describes, how this is achieved by using Systemrescue-CD.

Low Cost SAN

Low Cost SAN

The objective of this document is to provide making of Low Cost SAN using FOSS tools.

CentOS 5.x Samba Domain Controller With LDAP Backend

CentOS 5.x Samba Domain Controller With LDAP Backend

This will show you how to set up a Samba Domain Controller with a local LDAP backend, using CentOS 5.x (tested on 5.3, still successfully running on 5.4).  Includes a web-interface for managing LDAP users/groups/etc.

January 2010 -- Now with support for Windows 7 domain logins (see end of guide).

Set Up A Full-Featured Mail Server With iRedOS: MySQL, Postfix, Dovecot, ClamAV, SpamAssassin, RoundCube/SquirrelMail

Set Up A Full-Featured Mail Server With iRedOS: MySQL, Postfix, Dovecot, ClamAV, SpamAssassin, Amavisd, RoundCube/SquirrelMail

iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes, since iredmail 0.5 it also supports Debian 5.0.1 (it supports both i386 and x86_64). Its object is to make a Linux mail server installation and configuration simple and easy to use. iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users.This tutorial shows how to use the MySQL backend. iRedOS is a customized CentOS 5.3 distribution, where e unnecessary packages were removed. It ships with the lastest version of iRedMail (iredmail0.50); it lets you install iredmail more quickly and smooth.

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