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Set Up DKIM On Postfix With dkim-milter (CentOS 5.2)
DKIM is an authentication framework which stores public-keys in DNS and digitally signs emails on a domain basis. It was created as a result of merging Yahoo's domainkeys and Cisco's Identified Internet mail specification. It is defined in RFC 4871. We will be using the milter implementation of dkim http://dkim-milter.sf.net on CentOS 5.2.
The Perfect Server - CentOS 5.2 [ISPConfig 3]
This tutorial shows how to prepare a CentOS 5.2 server for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache web server, Postfix mail server, MySQL, MyDNS nameserver, PureFTPd, SpamAssassin, ClamAV, and many more.
OpenVPN Server On CentOS 5.2
So your users need access to Exchange and data from outside your organisation. Sure you can set up RPC over HTTPS and various other tools to access the data. I just find OpenVPN very good, convenient and reliable.
How To Set Up Apache2 With mod_fcgid And PHP5 On CentOS 5.2
This tutorial describes how you can install Apache2 with mod_fcgid and PHP5 on CentOS 5.2. mod_fcgid is a compatible alternative to the older mod_fastcgi. It lets you execute PHP scripts with the permissions of their owners instead of the Apache user.
Managing OpenVZ With HyperVM On CentOS 5.2
HyperVM is a multi-platform, multi-tiered, multi-server, multi-virtualization web based application that will allow you to create and manage different virtual machines each based on different technologies across machines and platforms. Currently it supports OpenVZ and Xen virtualization and is available for RHEL 4/5 as well as CentOS 4 and CentOS 5. This tutorial shows how to install it on a CentOS 5.2 server to control OpenVZ containers. I will also explain how to manage OpenVZ containers with HyperVM on a remote CentOS 5.2 server ("slave").
Set Up A Linux PlayStation 3 Media Server (CentOS 5.2)
The Sony PlayStation 3 is a DLNA compatible device, DLNA is a framework where home electronics can share digital media and content seamlessly. This tutorial is a followup to the previous howto on Ubuntu. Given that I like most others use CentOS as their server distribution of choice, I find it fitting to run my DLNA server on it as well. Although several other open source media servers exist, I chose to use Fuppes due to its ease of use as well as built in support for transcoding.
Installing PowerDNS (With MySQL Backend) And Poweradmin On CentOS 5.2
This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a CentOS 5.2 system. PowerDNS is a high-performance, authoritative-only nameserver - in the setup described here it will read the DNS records from a MySQL database (similar to MyDNS), although other backends such as PostgreSQL are supported as well. Poweradmin is a web-based control panel for PowerDNS.
ZRM 2.1: Backing Up MySQL Partitioned Tables
MySQL 5.1 is generally available for production use. One of the key features of MySQL 5.1 is partitioning. This how to shows how to install and configure Zmanda Recovery Manager for MySQL (ZRM) 2.1 to perform backup and recovery of MySQL partitioned tables.
How To Create A FreeRADIUS 2.1.1-6 RPM Package On CentOS 5.2
This is just a short tutorial showing how to create an RPM version of FreeRADIUS 2.1.1-6 on CentOS 5.2. This version of FreeRADIUS is not yet included in the CentOS 5 repositories.
Server Monitoring With munin And monit On CentOS 5.2
In this article I will describe how you can monitor your CentOS 5.2 server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.