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Search results for Create and Manage Virtual Machines Using VirtualBox in Ubuntu

Linux

Removing A User

Post date: April 8, 2006, 00:04 Category: System Views: 4361 Comments
Tutorial quote: Employee turnover in most organizations runs high. So unless you run a small shop with a stable user base, you need to learn how to clean up after an employee leaves. Too many so-called system administrators do not understand the stakes involved when they manage users. Disgruntled former employees can often cause significant trouble for a company by gaining access to the network.

To remove a user, you need to learn to manage all of his or her files, mailboxes, mail aliases, print jobs, recurring –(automatic) personal processes such as the backing up of data or remote syncing of directories, and other references to the user. It is a good idea at first to disable the account in /etc/passwd, after which you can search for the user's files and other references. Once all traces of the user have been cleaned up, you can remove the user completely—but if you remove the entry from /etc/passwd while these other references exist, you have a harder time referring to them .

When you remove a user, it's a good idea to follow a pre-determined course of action so you don't forget any important steps; it may even be a good idea to make a checklist so that you have a routine. Following, you will find several items requiring attention.
Gentoo

HOWTO Linux Virtual Hosting Server

Post date: April 9, 2006, 14:04 Category: Software Views: 7268 Comments
Tutorial quote: This document will explain how to install and configure a mail server capable of handling hundreds of domains and users. This how-to uses Postfix, Courier-imap, Mysql, and Apache as the core of this virtual system. If these packages don't appeal to you, Gentoo has a number of how-to's built around other MTA's or databases.
Debian

dmcrypt

Post date: January 25, 2006, 22:01 Category: Security Views: 4693 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.
Linux

Building a Linux virtual server

Post date: June 9, 2005, 14:06 Category: Software Views: 3309 Comments
Tutorial quote: With the explosive growth of the Internet, the workload on servers providing Web, email, and media services has increased greatly. More and more sites are being challenged to keep up with the growing demands and are employing several techniques to avoid overloading their servers. Building a scalable server on a cluster of computers is one of the solutions that is being effectively put to use. With such a cluster, the increasing requests can be easily managed by simply adding one or more new servers to the existing cluster as required. In this article we will look at setting up one such scalable, network load-balancing server cluster using a virtual server via the Linux Virtual Server Project.
Unix+clones

How to create/edit/embed subtitles in videos using Jubler and Avidemux

Post date: June 22, 2008, 14:06 Category: Multimedia Views: 8137 Comments
Tutorial quote: This guide describes how to create your own subtitles for a video clip using Jubler and after that how to embed them on the clip using Avidemux.
Linux

Manage Your Music Efficiently in Linux

Post date: August 4, 2008, 19:08 Category: Multimedia Views: 3830 Comments
Tutorial quote: Today PC's have become a major source of entertainment ... Whether its listening Music, watching Movies , playing Games or chatting in past time.. PC has does it all to keep you entertained for a long period of time.. PC has now turned to a jukebox now apart from what they are mainly meant for !

Today people generally store their Music in their PC .. Keeping Music in PC has lots of advantages like you have a Soft copy always accessible from anywhere, can easily backup/delete music collection, saves space by not utilizing DVD's/Cd's considering Online Music Shops. Easy management and Quicker Search..

Keeping Music in Cd's and similar stuff is hard.. As you just can't carry every Media's with you and compiling you favorite song collection to Cd's and DVD's will consume too much recourse.. With the arrival of Portable Media player like iPod, Walkman, Zen and others carrying music was so easy..

But to keep your Music collection updated and proper you must keep them in proper way.. A properly tagged and named music file will be easy to find else you will just waste your time searching the Gb's of your Disk..

So why waste time ? Just go through the guide and you will know how to easily and efficiently manage your Music Collection in GNU/Linux OS..
Ubuntu

Virtual Users/Domains With Postfix, Courier, MySQL, SquirrelMail (Ubuntu 11.10)

Post date: November 8, 2011, 08:11 Category: Installing Views: 20298 Comments
Tutorial quote: This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Ubuntu

Installing Cherokee With PHP5 And MySQL Support On Ubuntu 11.04

Post date: August 14, 2011, 18:08 Category: Installing Views: 2622 Comments
Tutorial quote: Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on an Ubuntu 11.04 server with PHP5 support (through FastCGI) and MySQL support.
Ubuntu

Installing Cherokee With PHP5 And MySQL Support On Ubuntu 9.04

Post date: August 9, 2009, 13:08 Category: Installing Views: 2182 Comments
Tutorial quote: Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on an Ubuntu 9.04 server with PHP5 support (through FastCGI) and MySQL support.
Ubuntu

Installing Cherokee With PHP5 And MySQL Support On Ubuntu 9.10

Post date: February 16, 2010, 12:02 Category: Installing Views: 2915 Comments
Tutorial quote: Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on an Ubuntu 9.10 server with PHP5 support (through FastCGI) and MySQL support.
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