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RedHat

Getting started with RHEL4's built-in LVM tools

Post date: June 3, 2005, 16:06 Category: System Views: 6781 Comments
Tutorial quote: Many Unix administrators I know (you know who you are), always used to smirk when I talked about Linux. They could always point to the fact that regardless of whatever I could say, they had journaling file systems, which they could manage using various Logical Volume Management (LVM) tools, and I couldn't touch that.

Well, not any more! Not only does Red Hat offer ext3 as their default file system, but they offer great management tools to boot. As we know, ext2 had a great lifespan, but it was not an enterprise-ready file system that could handle large disk partitions, fast recovery from systems crashes, or large amounts of files. Journaling file systems give you the ability to recover almost instantly from a crash, as you do not need to run fsck after a restart. Similar to how databases recover from crashes, a journaling file system tracks changes to file system metadata and pretty much guarantees that either all or no updates have completed. Of course, these file systems also need elaborate tools to help better configure and manage them accordingly.
Ubuntu

List of Email Clients Available in Ubuntu Linux

Post date: August 28, 2008, 17:08 Category: Software Views: 3853 Comments
Tutorial quote: An e-mail client, aka Mail User Agent (MUA), aka e-mail reader is a front end computer program used to manage e-mail.

Solaris

Restoring a Sun system using JumpStart technology

Post date: April 13, 2005, 05:04 Category: Installing Views: 4744 Comments
Tutorial quote: If a server crash and the file systems are corrupted or totally destroyed, then the only way to recover the data is to restore from backups. If it is only user data that is corrupted, the task is in general simple, but if the system disk fails, then there is a little bit more work involved in order to to recover the system. This article explains how to backup Sun systems using ufsrestore over NFS, and how to use Sun's JumpStart technology to restore Sun servers and workstations over the network.
Fedora

Automatic And Up-To-Date Fedora 9 Installations With Kickstart And Novi

Post date: October 30, 2008, 12:10 Category: Miscellaneous Views: 3969 Comments
Tutorial quote: Kickstart allows you to do automatic Fedora/RedHat/CentOS installations. This is useful and time-saving if you have to deploy tens or hundreds of similar systems (e.g. workstations). Kickstart reads the installation settings from a Kickstart configuration file. The problem with Kickstart is that it usually uses the distribution's packages from the time the distribution was released, i.e., it does not consider updates which means you would have to update each system manually after the Kickstart installation. This guide explains how you can do up-to-date Kickstart installations with the help of a tool called novi.
CentOS

Managing OpenVZ With HyperVM On CentOS 5.2

Post date: February 5, 2009, 12:02 Category: Installing Views: 5643 Comments
Tutorial quote: HyperVM is a multi-platform, multi-tiered, multi-server, multi-virtualization web based application that will allow you to create and manage different virtual machines each based on different technologies across machines and platforms. Currently it supports OpenVZ and Xen virtualization and is available for RHEL 4/5 as well as CentOS 4 and CentOS 5. This tutorial shows how to install it on a CentOS 5.2 server to control OpenVZ containers. I will also explain how to manage OpenVZ containers with HyperVM on a remote CentOS 5.2 server ("slave").
Ubuntu

Open-Source Classroom Management With iTALC On Ubuntu 7.10

Post date: March 27, 2008, 11:03 Category: Desktop Views: 3727 Comments
Tutorial quote: This document describes how to set up iTALC on Ubuntu 7.10. iTALC is an open-source classroom management solution that lets you view and control other computers in your network. It lets you remote-control other computers, show the teacher's screen on all students' computers, lock workstations, send text-messages to students, power on/off and reboot remote computers, etc.
Ubuntu

SAMBA (Domaincontroller) Server For Small Workgroups With Ubuntu 5.10 "Breezy Badger"

Post date: December 14, 2005, 19:12 Category: Network Views: 4515 Comments
Tutorial quote: This is a detailed description about the steps to set up a Ubuntu based server (Ubuntu 5.10 - Breezy Badger) to act as file- and print server for Windows (tm) workstations in small workgroups. This howto uses the tdb backend for SAMBA to store passwords and account information. This is suitable for workgroups for up to 250 users and is easier to setup than an LDAP backend. A second howto covering the installation of LDAP + SAMBA will be published soon.
Gentoo

EVMS Howto for Gentoo Linux

Post date: April 15, 2005, 04:04 Category: Hardware Views: 5332 Comments
Tutorial quote: EVMS stands for Enterprise Volume Management System. It's a all-in-one utility written by IBM to manage disk partitions, logical volumes, software RAID and even filesystems.

It does everything from installing the partition table to mounting volumes, fscking and resizing them. It has a plugin mechanism which allow a user to extend EVMS with external drivers.
Linux

Monitor Network data transfer using Vnstat

Post date: October 28, 2008, 05:10 Category: Network Views: 5141 Comments
Tutorial quote: If you want to monitor and manage your Internet bandwidth, perhaps to make sure your ISP is not overbilling you, try vnStat, an open source, Linux-based application that gives you a clear picture of your bandwidth usage. This utility got the command-line options and also got the UI part which give the output in form of a graph and is simple to install and easy to use.
Ubuntu

Gufw - Simple GUI for ufw (Uncomplicated Firewall) in Ubuntu

Post date: September 29, 2008, 06:09 Category: Software Views: 4996 Comments
Tutorial quote: Gufw is an easy to use Ubuntu / Linux firewall, powered by ufw.Gufw is an easy, intuitive, way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports port(s), and many others! Gufw is powered by ufw, runs on Ubuntu, and anywhere else Python, GTK, and Ufw are available.
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