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Linux

Creating DjVu Documents Linux HOWTO

Post date: July 16, 2006, 16:07 Category: Miscellaneous Views: 4159 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.
Unix+clones

Create your own init.d scripts

Post date: November 11, 2007, 05:11 Category: System Views: 8126 Comments
Tutorial quote: Have a Linux executable that you would like to run as a daemon? Making your own init.d scripts can be a bit tricky, but I can help you out.

The directory /etc/init.d/ is a location on a Linux file system that contains scripts for changing init states.

For details on Linux run levels look here.

The run levels that are most important to us are 2, 3 and 5.

VERY basic sample init.d script (Replace italics respectively):
Debian

Xen Cluster Management With Ganeti On Debian Etch

Post date: September 16, 2007, 21:09 Category: Miscellaneous Views: 3440 Comments
Tutorial quote: Ganeti is a cluster virtualization management system based on Xen. In this tutorial I will explain how to create one virtual Xen machine (called an instance) on a cluster of two physical nodes, and how to manage and failover this instance between the two physical nodes.
Debian

Xen Cluster Management With Ganeti On Debian Lenny

Post date: March 3, 2009, 12:03 Category: Installing Views: 4176 Comments
Tutorial quote: Ganeti is a cluster virtualization management system based on Xen. In this tutorial I will explain how to create one virtual Xen machine (called an instance) on a cluster of two physical nodes, and how to manage and failover this instance between the two physical nodes.
Unix+clones

How to securely send and retrieve your mail via SSH

Post date: April 18, 2005, 00:04 Category: Network Views: 2426 Comments
Tutorial quote: SSH allows you to create an encrypted network tunnel between your machine and other network. This document will show you how to set up this tunnel and then use it to securely send and retrieve your mail.
Debian

Installing MyDNS-NG & MyDNSConfig 3 On Debian Lenny

Post date: April 9, 2009, 11:04 Category: Installing Views: 3530 Comments
Tutorial quote: 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.
Ubuntu

KVM Guest Management With Virt-Manager On Ubuntu 8.10

Post date: February 10, 2009, 12:02 Category: Miscellaneous Views: 4586 Comments
Tutorial quote: Virt-Manager (Virtual Machine Manager) is a graphical interface for managing KVM and Xen guests on the local and also on remote systems. You can use it to start, stop, pause, create, and delete guests, and you can connect to the guests using the graphical console. This guide shows how you can use it to manage KVM guests on an Ubuntu 8.10 desktop.
Linux

TrueCrypt Tutorial: Truly Portable Data Encryption

Post date: July 2, 2007, 23:07 Category: Security Views: 3837 Comments
Tutorial quote: TrueCrypt is a free software that encrypts data on-the-fly. Right now the newest version released is version 4.3. You can create an encrypted hard drive, a separate partition or a directory with TrueCrypt. It does not simply encrypt the content of files, but their names and the names of the directories they are in as well. Moreover there is no way to check the size of the encrypted directory/HDD/partition. TrueCrypt is available for Windows and Linux.
Debian

Linux virtual server on Debian Sarge

Post date: November 29, 2005, 21:11 Category: System Views: 3628 Comments
Tutorial quote: Linux-VServer allows you to create virtual private servers and security contexts which operate like a normal Linux server, but allow many independent servers to be run simultaneously in one box at full speed. All services, such as ssh, mail, Web, and databases, can be started on such a VPS, without modification, just like on any real server. Each virtual server has its own user account database and root password and doesn't interfere with other virtual servers.
Ubuntu

Installing VirtualBox 2.0.0 On Ubuntu 8.04 Desktop

Post date: September 18, 2008, 10:09 Category: Installing Views: 3402 Comments
Tutorial quote: This tutorial shows how you can install Sun xVM VirtualBox on an Ubuntu 8.04 desktop. With VirtualBox you can create and run guest operating systems (virtual machines) such as Linux and Windows under a host operating system. There are two ways of installing VirtualBox: from precompiled binaries that are available for some distributions and come under the PUEL license, and from the sources that are released under the GPL. This article will show how to set up VirtualBox 2.0.0 from the precompiled binaries.
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