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Fedora+Core

Tripwire on your Fedora Box

Post date: April 16, 2005, 00:04 Category: Security Views: 5616 Comments
Tutorial quote: Tripwire is an Intrusion Detection System. This can be used to alert users whenever their system is compromised. Tripwire detects and reports changes in system files. It will alert you through email whenever a change is detected. If the change is due to normal system activity, you can instruct Tripwire not to report the change to that file in future. If the change is not due to normal system activity, then it is a clear indication that something is wrong and you need to act immediately and fix the issue. Thus tripwire comes very handy to maintain the integrity of the system.

There is lot of information on the web about Tripwire. Some people might argue that AIDE (Advanced Intrusion Detection Environment) is better than tripwire and so on. This comparison is beyond the scope of this article. This is an introductory article for novice users who are interested in installing Tripwire on their Fedora Box. Advanced users can refer to the web for relevant information or they can contact appropriate mailing lists like fedora users mailing list.
Debian

Little-known APT utilities for Debian desktop users

Post date: July 30, 2006, 18:07 Category: Desktop Views: 3254 Comments
Tutorial quote: The Advanced Packaging Tool (APT) is a distinguishing feature of Debian-based systems. APT was the first major alternative in GNU/Linux to boast automatic dependency resolution. Most GNU/Linux users know it through the apt-get command, a utility that calls on the lower-level dpkg command. However, other APT-based utilities remain largely unknown to desktop users. Some of these utilities offer a range of functionality far beyond those of the basic tools.
Unix+clones

Classic AmigaOS Emulation - A Guide for WinUAE

Post date: June 12, 2005, 23:06 Category: Emulation Views: 4483 Comments
Tutorial quote: WinUAE has reached a "v1.0 public"-state (!) and includes many improvements including OpenGL/DirectX display filters (for enhancing graphic output), Catweasel support (hardware for reading classic Amiga formatted diskettes with today's diskdrives) and an overall more cleanly designed user interface. For most people who are unfamiliar with AmigaOS and the use of Amiga emulators, setting up a usable AmigaOS emulation environment can be a daunting task. I have often heard of even veteran computing professionals feeling like complete computing newbees again when being confronted with all the Amiga jargon floating around on Amiga forums. With this article I intend to help provide information and pointers to resources for getting familiar with classic Amiga emulation while focussing on the freely available WinUAE emulator for the Windows platform. With this guide setting up an advanced classic emulation environment shoulld be possible for any PC user.

This article also includes many WinUAE screenshots, videos and information on acquiring and using freely available software.
Debian

dmcrypt

Post date: January 25, 2006, 22:01 Category: Security Views: 5056 Comments
Tutorial quote: Device-mapper is a new infrastructure in the Linux 2.6 kernel that provides a generic way to create virtual layers of block devices that can do different things on top of real block devices like striping, concatenation, mirroring, snapshotting, etc... The device-mapper is used by the LVM2 and EVMS 2.x tools. dm-crypt is such a device-mapper target that provides transparent encryption of block devices using the new Linux 2.6 cryptoapi. Writes to this device will be encrypted and reads decrypted. You can mount your filesystem on it as usual. But without the key you can't access your data. It does basically the same as cryptoloop only that it's a much cleaner code and better suits the need of a block device and has a more flexible configuration interface. The on-disk format is also compatible.
OSX

Mac OS X Server Migration Guide

Post date: June 8, 2005, 05:06 Category: System Views: 4110 Comments
Tutorial quote: This guide contains the following chapters:

Chapter 1, “Migrating the Previous Version of Mac OS X Server,” details the steps to follow if you have the previous version of Mac OS X Server and want to migrate to the new
version.

Chapter 2, “Migrating Macintosh Manager or At Ease for Workgroups,” explains the steps involved in migrating existing Macintosh Manager or At Ease for Workgroups users,
workgroups, and documents to Mac OS X Server.

Chapter 3, “Migrating AppleShare IP,” provides information about migrating existing information from an AppleShare IP server to Mac OS X Server.
Debian

Building A Virtual Server (VPS) With Debian 3.1 (Sarge) And OpenVZ

Post date: March 20, 2006, 20:03 Category: System Views: 3927 Comments
Tutorial quote: In this HowTo I will describe the steps to be taken to prepare a server for OpenVZ virtual machines on Debian 3.1 (Sarge) 32Bit Linux. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernal patch is licensed under the GPL license, and the user-level tools are under the QPL license.
OSX

Mac OS X Server Administrator's Guide

Post date: June 8, 2005, 05:06 Category: System Views: 7300 Comments
Tutorial quote: Includes information on how Mac OS X Server software works
and strategies for using it with your network
Solaris

Configuring networking

Post date: April 13, 2005, 03:04 Category: Network Views: 6055 Comments
Tutorial quote: Networking information in Solaris is stored in text files. Configuration is done by filling in the appriopriate data to these files and invoking specific commands in a terminal window.
Unix+clones

Downloading without a Browser

Post date: November 29, 2005, 19:11 Category: Software Views: 3651 Comments
Tutorial quote: Ever had to download a file so huge over a link so slow that you'd need to keep the web browser open for hours or days? What if you had 40 files linked from a single web page, all of which you needed -- will you tediously click on each one? What if the browser crashes before it can finish? GNU/Linux comes equipped with a handy set of tools for downloading in the background, independent of the browser. This allows you to log out, resume interrupted downloads, and even schedule them to occur during off-peak Net usage hours.
Debian

Nagios and Oreon (Nagios web front end) installation and Configuration

Post date: July 18, 2006, 17:07 Category: Software Views: 3952 Comments
Tutorial quote: Nagios is a host and service monitor designed to inform you of network problems before your clients, end-users or managers do. It has been designed to run under the Linux operating system, but works fine under most *NIX variants as well. The monitoring daemon runs intermittent checks on hosts and services you specify using external "plugins" which return status information to Nagios. When problems are encountered, the daemon can send notifications out to administrative contacts in a variety of different ways (email, instant message, SMS, etc.).

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