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How To Install Zimbra Collaboration Suite (ZCS) On Ubuntu
This guide shows how to install the Zimbra Collaboration Suite (ZCS) on Ubuntu 6.10 (Edgy Eft) and 6.06 (Dapper Drake) server systems. Zimbra is a full-featured, open source collaboration suite - email, group calendaring, contacts, and web document management and authoring. It has a feature-rich AJAX web interface and is compatible with clients such as Microsoft Outlook, Apple Mail, and Novell Evolution so that mail, contacts, and calendar items can be synchronised from these to the ZCS server. It can also be synchronized to many mobile devices. ZCS makes use of many existing open source projects such as Postfix, MySQL, and OpenLDAP.
Creating a dd/dcfldd Image Using Automated Image & Restore (AIR)
Automated Image & Restore (AIR) is an open source application that provides a GUI front end to the dd/dcfldd (Dataset Definition (dd)) command. AIR is designed to easily create forensic disk/partition images. It supports MD5/SHAx hashes, SCSI tape drives, imaging over a TCP/IP network, splitting images, and detailed session logging. To date, the AIR utility has only been developed for use on Linux distributions. In its simplest form, AIR provides a convenient interface to execute the dd set of commands. It eliminates the risk of "fat fingering" an error in the shell terminal and ultimately makes using the dd command more user-friendly for those who are not as experienced. Please note that using the AIR front end still requires some basic knowledge of how the dd (or dcfldd) commands work.
The Perfect Desktop - Part 3: Ubuntu 6.10 Edgy Eft
With the release of Microsoft's new Windows operating system (Vista), more and more people are looking for alternatives to Windows for various reasons. This tutorial is the third in a series of articles where I will show people who are willing to switch to Linux how they can set up a Linux desktop (Ubuntu 6.10 Edgy Eft in this article) that fully replaces their Windows desktop, i.e. that has all 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 runs also on older hardware, and the best thing is: all software comes free of charge.
Setting the SUID/SGID bits: Giving a program YOUR permissions when it runs
Normally, when a program runs under Linux, it inherits the permissions of the user who is running it, thus if I run a program under my account, the program runs with the same permissions that I would have if that program were me. Thus, if I cannot open a certain file, the program I am running also cannot open the file in question. If I set the SUID or SGID bit for a file, this causes any persons or processes that run the file to have access to system resources as though they are the owner of the file.
How To Roll A Kernel the Ubuntu/Debian Way
The Linux kernel is the heart of your Ubuntu Operating System. The kernel that comes with Ubuntu should contain all of the drivers you need, but just in case you would like to tweak your kernel or if for some reason you need to recompile for some special reason this guide will help you.
Configuration Automation & Centralized Management With Puppet on Ubuntu
This is a step by step tutorial on how to install the server component of Puppet (puppetmaster) on one machine, and the Puppet client (puppetd) on another. We then perform a simple test to make sure Puppet is working properly. If you're not familiar with Puppet, it's a configuration automation tool that allows you to centralize management of the various *nix flavors running on your network. Puppet supports central management of the important aspects of your systems, such as: files, packages, users, services, cron, mounts, etc.
Set Up A Fileserver For Small/Medium Enterprises With SME Server 7.1
This tutorial shows how to set up a fileserver for small and medium enterprises with SME Server 7.1. SME Server is an open-source Linux server distribution (released under the GPL) based on CentOS that can turn a computer into a gateway, firewall, fileserver, printserver, mailserver (including webmail), etc. In this article we will focus on the fileserver aspect of SME Server.
Creating a read-only mirror of your SVN repository with SVK
Say, you've got an SVN for your OpenSource project and would like to mirror it to some remote location that hosts opensource projects (such as SourceForge.net or dev.java.net). I'll skip the phase of an account and project registration and assume you've already got your credentials and SVN repo url. I also assume you are on Debian or Ubuntu and your SVN is up and running under Apache httpd.
The Perfect Desktop - Part 2: Mandriva Free 2007
With the release of Microsoft's new Windows operating system (Vista), more and more people are looking for alternatives to Windows for various reasons. This tutorial is the second in a series of articles where I will show people who are willing to switch to Linux how they can set up a Linux desktop (Mandriva Free 2007 in this article) that fully replaces their Windows desktop, i.e. that has all 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, and the best thing is: all software comes free of charge.
An Explanation of Pointers (C++)
Pointers are basically the same as any other variable. However, what is different about them is that instead of containing actual data, they contain a pointer to the memory location where information can be found. This is a very important concept, and many programs and ideas rely on pointers as the basis of their design, linked lists for example.