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This is a detailed description about how to set up an OpenSUSE 11.4 server (x86_64) 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, 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 2 (i.e., ISPConfig runs on it out of the box).

This tutorial explains how you can configure Lighttpd to set the Expires HTTP header and the max-age directive of the Cache-Control HTTP header of static files (such as images, CSS and Javascript files) to a date in the future so that these files will be cached by your visitors' browsers. This saves bandwidth and makes your web site appear faster (if a user visits your site for a second time, static files will be fetched from the browser cache). This tutorial was written for Debian Squeeze.

In this short guide I will show you how you can install the new Mozilla Firefox 4.0 browser (released March 22, 2011) on an Ubuntu 10.10 desktop. Fortunately, there's a Launchpad PPA repository that has Firefox 4.0 .deb packages, so we can easily install it through Ubuntu's package manager.

Secure file transfer gets too little attention, perhaps because it is too easy. For secure file transfer without the need of special programs or clients, nothing more is needed than to have the OpenSSH server installed and running. It has a built-in SFTP subsystem that is available to any account that can log in. In other words, for basic SFTP access, nothing needs to be done other than have an account accessible via SSH.

The following tutorial will extend the "Perfect Server.... " for ISPConfig 3 with BIND & Courier installed on Debian Squeeze. It explains how to change default ports (ssh, ispconfig, webmin), how to install some useful applications (webmin, roundcube, atop, htop, multitail, tiger etc), how to update awstats periodically (more than once a day) or whenever you want, how to create clients' data backups (periodically) accessible under their folder and finally it explains how to tweak your system for performance (mysqltuner, tuning-primer) or security (custom firewall rules, (D)Dos Deflate, fail2ban modified).

This document can be used as a guide to installation of MyDLP Appliance. It also describes the basic usage. MyDLP is an easy, simple and open DLP (data loss prevention) solution, licensed under GPLv3. MyDLP 1.0 was released on 10 November 2010. MyDLP Appliance is a distribution based on Ubuntu Server. The distribution comes as a easy to deploy key solution. Protecting customer records, securing confidential files, data flow enforcements... this is all achievable within 30 minutes.

Solr is the popular, blazing fast open source enterprise search platform from the Apache Lucene project. Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document (e.g., Word, PDF) handling. I use this on OpenSUSE and Debian (minor tweaks on Debian, just paths to correct but it's almost the same).

This guide shows how you can upgrade your OpenSUSE 11.3 desktop and server installations to OpenSUSE 11.4.

This is a detailed description about how to set up an OpenSUSE 11.4 64bit (x86_64) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable) with PHP, CGI and SSI support, Postfix mail server with SMTP-AUTH, TLS and virtual mail users, BIND DNS server, Pureftpd FTP server, MySQL server, Dovecot POP3/IMAP, Quota, Firewall, etc.

This guide explains how to set up WebDAV with Apache2 on a CentOS 5.5 server. WebDAV stands for Web-based Distributed Authoring and Versioning and is a set of extensions to the HTTP protocol that allow users to directly edit files on the Apache server so that they do not need to be downloaded/uploaded via http://FTP. Of course, WebDAV can also be used to upload and download files.

This How-To document guides you through installing ASSP (Anti-Spam SMTP Proxy) on an Ubuntu 10.04 (LTS) Server or Debian 5.0 in the simplest way possible. It *may* work on later versions but I have no way of knowing how these instructions will work for you. Installing Ubuntu/Debian is beyond the scope of this document and it is assumed you already have the core Ubuntu/Debian OS with no predefined software collections installed.

This tutorial explains how you can integrate ClamAV into PureFTPd for virus scanning on an OpenSUSE 11.3 system. In the end, whenever a file gets uploaded through PureFTPd, ClamAV will check the file and delete it if it is malware.

This guide explains how you can install and use KVM for creating and running virtual machines on a Debian Squeeze 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.

This tutorial will tell you how to install Camfrog Server 5.0 Linux on Ubuntu 10.10 (Maverick Meerkat). When I first saw that Camfrog Server 5.0 was released I was excited until I realized it was only for RedHat AS/ES 4.x 5.x, CentOS 4.x 5.x, Fedora 6.x 7.x 8.x operating systems. Then I realized you can convert rpm packages to deb packages using alien; you can even have alien install the rpm automatically after converting it.

This tutorial explains how you can configure Apache2 to set the Expires HTTP header and the max-age directive of the Cache-Control HTTP header of static files (such as images, CSS and Javascript files) to a date in the future so that these files will be cached by your visitors' browsers. This saves bandwidth and makes your web site appear faster (if a user visits your site for a second time, static files will be fetched from the browser cache). This tutorial was written for Debian Squeeze.

This tutorial shows how to upgrade a Debian Lenny (Debian 5.0) installation on a Xen based Virtual Private Server (VPS) to Squeeze (Debian 6.0) including kernel update, dependency based boot sequencing and conversion to UUIDs. If you do it the usual Debian way just with apt-get dist-upgrade you will most likely end up with an unbootable system. This is mainly because the update of grub fails.

This tutorial explains the installation of a Samba fileserver on Ubuntu 10.10 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.

Nagios is a monitoring solution for complex IT infrastructures, Nagios is easy to implement and can be extended by custom-modules, called plugins. In this howto I explain how to install Nagios on a Debian Lenny host and make the configuration for it. Furthermore we are going to install a second Debian machine which we monitor with remote and local plugins.

This tutorial describes how you can set up an development environment for building Android apps on a Debian Squeeze desktop using Eclipse, the Android SDK, and PhoneGap. I will describe how to build Android apps from the command line with PhoneGap and from the GUI with Eclipse and PhoneGap and how to test them in an Android emulator and on a real Android device. PhoneGap allows you to develop your Android applications using web technologies such as HTML, CSS, and JavaScript (e.g. with JavaScript libraries such as jQuery/jQTouch), and it will turn these web apps into native Android apps (in fact, PhoneGap supports multiple platforms such as Android, iPhone, Palm, Windows Mobile, Symbian, so you can use the same sources to create apps for multiple platforms).

I prefer the RoundCube solution over the default in ISPConfig 3. I also find it useful to have the webmin installed in all my systems. In this post you can see a very fast way to have both of them installed, in companion with the great support of fail2ban. Finally I want to access all of them over SSL (even phpmyadmin -- see the tip in the end).