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SugarCRM is a webbased CRM solution written in PHP. SugarCRM is available in different flavours called "Editions" ("Community" (free), "Professional", and "Enterprise"). For a detailed overview of the different editions, have a look at the SugarCRM website. In this tutorial I will describe the installation of the free Community Edition on Fedora 10. With the modules My Portal, Calendar, Activities, Contacts, Accounts, Leads, Opportunities, Cases, Bugtracker, Documents and Email, SugarCRM Community Edition offers everything that can be expected from a CRM solution.

This tutorial shows how you can set up an Ubuntu 9.04 (Jaunty Jackalope) desktop that is a full-fledged replacement for a Windows desktop, i.e. that has all the software that people need to do the things they do on their Windows desktops. The advantages are clear: you get a secure system without DRM restrictions that works even on old hardware, and the best thing is: all software comes free of charge.

On April 23, the new Ubuntu 9.04 (Jaunty Jackalope) was released. This guide shows how you can upgrade your Ubuntu 8.10 desktop and server installations to Ubuntu 9.04.

This tutorial shows how to set up an Ubuntu Jaunty Jackalope (Ubuntu 9.04) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig 2 (i.e., ISPConfig runs on it out of the box).

uSbuntu Live Creator is a free software for Windows that allows you to create a bootable USB stick with Ubuntu 8.10 on it. This software also offers a new option for virtualization to run Ubuntu directly into Windows and without any setup or installation - this is done by using a portable version of VirtualBox. uSbuntu Live Creator not only supports Ubuntu 8.10, but also Kubuntu 8.10 and Xubuntu 8.10.

In my previous guide about how to set up Enomalism2 on Ubuntu 8.10 I concentrated on just one KVM host. This tutorial is an extension to that article in that it shows how to add further Ubuntu 8.10 KVM hosts to the setup that can then be managed from one single control panel.

This tutorial explains the installation of a Samba fileserver on Ubuntu 8.10 and how to configure it to share files over the SMB protocol as well as how to add users. Samba is configured as a standalone server, not as a domain controller. In the resulting setup, every user has his own home directory accessible via the SMB protocol and all users have a shared directory with read-/write access.

Enomalism ECP (Elastic Computing Platform) provides a web-based control panel that lets you design, deploy, and manage virtual machines on one or more host systems (in the case of multiple systems, we speak of a cluster or cloud). This article shows how you can use Enomalism (also know as Enomaly) to manage KVM guests on one Fedora 10 server.

This guide explains how you can install and use Piwik for generating website analytics. The reports generated by Piwik are similar to the ones generated by Google Analytics. Piwik is an Open-Source (GPL) tool that you can download and host on your own servers which means you are in full control over your data. In addition to that, Piwik's functionality can be extended by plugins.

This short article explains how you can move/convert a Xen guest that uses disk images to LVM volumes. Virtual machines that use disk images are very slow and heavy on disk IO, therefore it is often better to use LVM. Also, LVM-based guests are easier to back up (using LVM snapshots).

Portable Ubuntu for Windows is an Ubuntu system running as a Windows application. All Ubuntu applications appear as a window on the Windows desktop, and you can even copy&paste between Ubuntu and Windows applications (in both directions). You can also copy Portable Ubuntu to your thumb drive and carry it with you (you don't need to "install" Portable Ubuntu on Windows - all you need is the Portable Ubuntu folder). This guide shows how to use Portable Ubuntu on a Windows XP desktop.

This tutorial shows how to set up a CentOS 5.3 server (x86_64) that offers all services needed by ISPs and web hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Dovecot POP3/IMAP, Quota, Firewall, etc. In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig (i.e., ISPConfig runs on it out of the box).

SugarCRM is a webbased CRM solution written in PHP. SugarCRM is available in different flavours called "Editions" ("Community" (free), "Professional", and "Enterprise"). For a detailed overview of the different editions, have a look at the SugarCRM website. In this tutorial I will describe the installation of the free Community Edition on Debian Lenny. With the modules My Portal, Calendar, Activities, Contacts, Accounts, Leads, Opportunities, Cases, Bugtracker, Documents and Email, SugarCRM Community Edition offers everything that can be expected from a CRM solution.

iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes on CentOS 5.x (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 OpenLDAP as the backend.

This guide explains how you can install and use KVM for creating and running virtual machines on a CentOS 5.2 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM). KVM is short for Kernel-based Virtual Machine and makes use of hardware virtualization, i.e., you need a CPU that supports hardware virtualization, e.g. Intel VT or AMD-V.

In this tutorial, I will describe how to install and configure Asterisk 1.6 on a Debian system to work with PostgreSQL in order to manage CDR (Call Detail Records) and real-time configuration. For this we will use a clean and up-to-date Debian Etch/Lenny system.

In this tutorial I will describe how to install and configure MyDNS-NG and MyDNSConfig 3 on Debian Lenny. MyDNS-NG is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. MyDNSConfig is an easy to use web-based interface to MyDNS-NG. MyDNSConfig can create all types of DNS records that are available in MyDNS and adds features like user management and access privileges.

This article is a short introduction to cron jobs, their syntax, and how to set them up. A cron job is a scheduled task that is executed by the system at a specified time/date.

This tutorial shows how to prepare an Ubuntu 8.10 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.

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.