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Linux

Creating DjVu Documents Linux HOWTO

Post date: July 16, 2006, 16:07 Category: Miscellaneous Views: 3683 Comments
Tutorial quote: This document explains some of the uses of djvulibre implementation of DjVu for creating quality DjVu documents in linux. DjVu format features bitmap document compression and hypertext structure. It is used by numerous web sites all around the world for storing and distributing digital documents including scanned documents and high-resolution pictures. One of the advantages of DjVu files is that they are notably small, often smaller than PDF or JPEG files with the same content. This makes DjVu a helpful tool for digitizing books and journals, especially scientific ones.

Below it is considered the case when a DjVu document is created from a number of separate JPEG files each containing a single page. Here JPEG format is not a limitation, and the examples can cover arbitrary image formats. Conversion from PDF to DjVu is also discussed. Usage of scanner software is not explained: refer to the relevant documentation.
OpenSUSE

gscan2pdf - Scan multiple Documents, import images to PDF & DjVu

Post date: August 27, 2008, 21:08 Category: Desktop Views: 3889 Comments
Tutorial quote: gscan2pdf is a simple but a very efficient GUI to scan documents of multiple pages and convert them into PDFs or DjVu format. You can also import images from image files into PDF files and vice versa. gscan2pdf only takes two clicks are required to scan several pages and then save all or a selection as a PDF file, including metadata if required.
Gentoo

Bandwidth limiting howto

Post date: June 13, 2005, 02:06 Category: Network Views: 4232 Comments
Tutorial quote: Linux has a very powerful mechanism for controlling network bandwidth usage. As being powerful inevitably implies being complex, this feature is documented in lengthy and exhaustive documents in great details. These documents however can prove to be excessive in their length and language to users who are looking for simple solutions for simple questions. This guide aims to give a short and practical introduction on how to solve some common issues that users tend to experience on an everyday basis.
Debian

Creating .deb-Packages With Checkinstall

Post date: April 12, 2005, 17:04 Category: Miscellaneous Views: 2472 Comments
Tutorial quote: Checkinstall is a nice tool to create simple .deb-packages that you can use in your local network (e.g. if you have to install the same piece of software on multiple computers running Debian). It lets you compile and install software from the sources like before, but with the difference that you end up with a simple Debian package which also means that you can easily uninstall the software you just compiled by running dpkg -r!

I will demonstrate the use of checkinstall by compiling and installing the anti-virus software ClamAV on a Debian system.

This howto is meant as a practical guide; it does not cover the theoretical backgrounds. They are treated in a lot of other documents in the web.
Linux

LDAP Authentication In Linux

Post date: August 26, 2006, 06:08 Category: Security Views: 5471 Comments
Tutorial quote: This howto will show you howto store your users in LDAP and authenticate some of the services against it. I will not show howto install particular packages, as it is distribution/system dependant. I will focus on "pure" configuration of all componenets needed to have LDAP authentication/storage of users. The howto assumes somehow, that you are migrating from a regular passwd/shadow authentication, but it is also suitable for people who do it from scratch.
Debian

Creating self signed SSL Certificates Using Openssl

Post date: February 3, 2006, 01:02 Category: Network Views: 2628 Comments
Tutorial quote: Easy howto on how to create self signed ssl certificate for apache.
Debian

Creating A Fully Encrypted Para-Virtualised Xen Guest System Using Debian Lenny

Post date: May 3, 2009, 10:05 Category: Miscellaneous Views: 3408 Comments
Tutorial quote: This document explains how to set up a fully encrypted para-virtualized XEN instance. In this howto, the host system is running Debian Etch, while the guest system to be installed will be using Debian Lenny. If you are concerned about your privacy, you might want to consider using hard disk encryption to protect your valuable private data from spying eyes. Usually, the easiest way would be to use your distribution's installer to set up a fully encrypted system; I think most recent Linux distributions support this. However, when you are using XEN to provide virtualization, there are situations where you might not want to encrypt your whole computer with all guest instances, but instead only encrypt one OS instance. This howto will deal with exactly this situation. It assumes that the XEN host system is already up and running.
Debian

How To Set Up A Load-Balanced MySQL Cluster

Post date: March 31, 2006, 19:03 Category: Software Views: 3821 Comments
Tutorial quote: This tutorial shows how to configure a MySQL 5 cluster with three nodes: two storage nodes and one management node. This cluster is load-balanced by a high-availability load balancer that in fact has two nodes that use the Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).

In this document I use Debian Sarge for all nodes. Therefore the setup might differ a bit for other distributions. The MySQL version I use in this setup is 5.0.19. If you do not want to use MySQL 5, you can use MySQL 4.1 as well, although I haven't tested it.

This howto is meant as a practical guide; it does not cover the theoretical backgrounds. They are treated in a lot of other documents in the web.
PC-BSD

Creating PC-BSD Packages (.pbi's)

Post date: September 1, 2005, 02:09 Category: Software Views: 5910 Comments
Tutorial quote: I've found a neat, clean and fast way of creating PBI's that works 100%. and im writing this HOW-TO to explain it.
Arch

Creating An RSS Feed With PHP And MySQL

Post date: September 6, 2009, 19:09 Category: Programming Views: 5696 Comments
Tutorial quote: Learn to create a custom RSS feed for your website content. These easy to build XML feeds can extend the reach of your content and grow your audience. This howto shows how to build and serve an RSS feed from your MySQL database.
Web-based applications and online marketing solutions - LumoLink