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Ubuntu

Recover your deleted jpeg pictures from filesystem or camera memory card - recoverjpeg

Post date: October 10, 2010, 05:10 Category: Desktop Views: 2386 Comments
Tutorial quote: Deleted or lost files can usually be recovered from failed or formatted drives and partitions, CD-ROMs and memory cards using the free software available in the Ubuntu repositories. The data is recoverable because the information is not immediately removed from the disk.
Unix+clones

The lost art of named pipes

Post date: April 15, 2005, 21:04 Category: System Views: 2819 Comments
Tutorial quote: A "named pipe" -- also known as a FIFO (First In, First Out) or just fifo -- is an inter-process communication mechanism that makes use of the filesystem to allow two processes to communicate with each other. In particular, it allows one of these to open one end of the pipe as a reader, and the other to open it as a writer. Let's take a look at the FIFO and how you can use it.
Ubuntu

QuickStart, The Swiss Army Knife For Ubuntu 8.04 Desktop

Post date: August 17, 2008, 10:08 Category: Desktop Views: 3227 Comments
Tutorial quote: In this article I will show how to install and use QuickStart on an Ubuntu 8.04 desktop. QuickStart is like a Swiss army knife, it allows you to do various things on your Ubuntu desktop: creating and restoring backups, running scheduled backups, backing up configuration files, installing some common applications, installing DVD codecs, deleting unnecessary files, etc.
Debian

Creating Simple Virtual Hosts With mod_mysql_vhost On Lighttpd (Debian Etch)

Post date: August 7, 2008, 09:08 Category: Installing Views: 2933 Comments
Tutorial quote: This guide explains how you can use mod_mysql_vhost to create simple virtual hosts on a lighttpd web server on Debian Etch. With mod_mysql_vhost, lighttpd can read the vhost configuration from a MySQL database. Currently, you can store the domain and the document root in the MySQL database which results in very simple virtual hosts. If you need more directives for your vhosts, you would have to configure them in the global section of lighttpd.conf, which means they would be valid for all vhosts. Therefore, mod_mysql_vhost is ideal if your vhosts differ only in the domain and document root.
Ubuntu

Recover deleted files from NTFS filesystem from Ubuntu Linux - Ntfsundelete

Post date: October 10, 2010, 05:10 Category: Security Views: 4133 Comments
Tutorial quote: If you have accidentally deleted files from your hard drive, don't panic! You can easily recover deleted files whether you are using a Windows PC (NTFS) or Linux OS. You can undelete files with almost guaranteed success. The most important thing is to act as soon as you realize that the files are lost.
Solaris

Restoring a Sun system using JumpStart technology

Post date: April 13, 2005, 05:04 Category: Installing Views: 3998 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.
Unix+clones

MySQL Master Master Repliction

Post date: September 18, 2006, 14:09 Category: Benchmarks Views: 5799 Comments
Tutorial quote: When we need to replication mysql servers with each other some time for synchronizing for HA. In my case I need the mysql servers for which two masters must be synchronized with each other so that if any one drops down, other could take care of the one and data must not be lost. Similarly when one goes up, it will still be used as slave for the live one.

Here is a basic step by step tutorial, that will cover the mysql master and slave replication and also will describe the mysql master and master replication.
Ubuntu

How to disable locking on lid-close : Ubuntu (6.10)

Post date: December 14, 2006, 09:12 Category: Desktop Views: 2593 Comments
Tutorial quote: Recently a friend of mine was asking how to disable locking (prompting for a password) after resuming from closing the laptop lid. I did a little bit of digging and here is how to turn that option off.
Linux

Backing Up and Restoring Using the cpio Command in Linux and Unix

Post date: May 26, 2006, 18:05 Category: System Views: 2743 Comments
Tutorial quote: The cpio command is one of the most commonly used Linux back up tools.

The cpio command has two unusual features

Unlike tar , in which the files to back up are typed in as part of the command, cpio reads the files to work with from the standard input (in other words, the screen).

This feature means that cpio must be used as part of a multiple command or with a redirection pipe. Examples of this usage are shown in the tables below.

cpio must always be used with one of three flags. Flags are options that set the mode in which the command runs. Only one flag can be used at a time, and it must come before any other options. In addition, the choice of flags limits the options that can be used. Each flag also has a gnu option that can used in its place. The gnu option gives a convenient name for each flag: extract, create, and pass- through.
Linux

Storing Files/Directories In Memory With tmpfs

Post date: December 9, 2008, 12:12 Category: Miscellaneous Views: 2956 Comments
Tutorial quote: You probably know that reading from RAM is a lot of faster than reading files from the hard drive, and reduces your disk I/O. This article shows how you can store files and directories in memory instead of on the hard drive with the help of tmpfs (a file system for creating memory devices). This is ideal for file caches and other temporary data (such as PHP's session files if you are using session.save_handler = files) because the data is lost when you power down or reboot the system.
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