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Debian

System encryption on Debian Etch

Post date: August 16, 2006, 16:08 Category: Security Views: 4984 Comments
Tutorial quote: In this article I will describe how to setup a nearly complete encrypted system using Debian Etch and cryptsetup with LUKS. The goal is: encrypt all partitions except /boot. The user should enter a password at boot time or provide a keyfile on an USB device to decrypt the root partition. Keyfiles for additional partitions are located on the root, so the user does not need to enter a password for every partition.
Linux

Easy peasy full system backup

Post date: August 12, 2008, 12:08 Category: Miscellaneous Views: 3162 Comments
Tutorial quote: You know how when someone accidentally deletes their files or their hard drive crashes or some other apocalyptic event occurs, the first thing people ask is “where is your backup”? Of course, we’ve all seen it (*ahem* been there ). It’s a bit unintuitive, because backups have no equivalent in the real world. If you drive your car into a lake, there’s no way to get it back. But making backups is the single best way to prevent losing your stuff. So do it!
Linux

How to create System Image

Post date: November 17, 2008, 11:11 Category: System Views: 3361 Comments
Tutorial quote: Suppose you have a 40GB hard disk and a removable hard disk whose capacity is 60GB, and you want to backup all the files from the hard disk to the removable disk. With "dd", it is a very easy task. Again, suppose your hard disk's Unix device name is /dev/sda and the removable disk is /dev/sdb. The following command can copy all the content from /dev/sda to /dev/sdb:
Linux

Replacing A Failed Hard Drive In A Software RAID1 Array

Post date: January 30, 2007, 17:01 Category: System Views: 3506 Comments
Tutorial quote: This guide shows how to remove a failed hard drive from a Linux RAID1 array (software RAID), and how to add a new hard disk to the RAID1 array without losing data.
Linux

Building a Linux Cluster, Part 3: How To Get Started

Post date: April 25, 2005, 14:04 Category: Network Views: 2582 Comments
Tutorial quote: In the previous two articles in this series, we examined some of the whys and whats of building Linux clusters. This article concludes our series by concentrating on the hows of cluster building. We've seen that a clustered approach to certain computing solutions can save lots of money in hardware and support costs. Now our job is to produce a method of building clusters that's repeatable and predictable—we don't want to give back our hard-won savings in project cost overruns.
Ubuntu

Disk ARchive (Backup and Restore) using dar and kdar(dar Frontend)

Post date: January 12, 2007, 18:01 Category: System Views: 3614 Comments
Tutorial quote: Dar is a shell command that makes backup of a directory tree and files. Its features include splitting archives over several files, CDs, ZIPs, or floppies, compression, full or differential backups, strong encryption, proper saving and restoration of hard links and extended attributes, remote backup using pipes and external command (such as ssh), and rearrangement of the “slices” of an existing archive. It can now run commands between slices, encrypt archives, and quickly retrieve individual files from differential and full backups. Dar also has external GUI like kdar for Linux,thanks to the well documented API.
Unix+clones

Reset your Settings for any Program

Post date: November 11, 2007, 05:11 Category: Desktop Views: 2961 Comments
Tutorial quote: Ever messed with settings and majorly screwed something up? I have.

Yesterday I was trying to pull a stunt by trying to embed Konsole in my KDE desktop and when I restarted the X server I had no desktop icons and couldn’t even get back to my settings to change it back! I was thinking OMG, RRR (Repartition, Reformat, Reinstall) time.

But wait, what if I just clear out my settings? Kind of a crude way of doing it, but it worked.
Ubuntu

Creating MySQL Backups With AutoMySQLBackup On Ubuntu 9.10

Post date: February 19, 2010, 11:02 Category: Miscellaneous Views: 2976 Comments
Tutorial quote: AutoMySQLBackup is a shell script that lets you take daily, weekly and monthly backups of your MySQL databases using mysqldump. It can back up multiple databases, compress the backups, back up remote databases, and email the logs. This tutorial explains how to install and use it on an Ubuntu 9.10 server.
Fedora

How To Back Up Your Files With Areca On Fedora 9

Post date: June 1, 2008, 08:06 Category: Miscellaneous Views: 4032 Comments
Tutorial quote: Areca is a personal file backup software developed in Java. It allows you to select files or directories to back up, filter, encrypt and compress their content, and store them on your backup location. Areca supports incremental backups and generates backup reports, which can be stored on your disk or sent by email. This guide explains how to install and use it on a Fedora 9 desktop (GNOME).
Windows

Three Ways To Access Linux Partitions (ext2/ext3) From Windows On Dual-Boot Systems

Post date: January 20, 2008, 12:01 Category: Miscellaneous Views: 6442 Comments
Tutorial quote: If you have a dual-boot Windows/Linux system, you probably know this problem: you can access files from your Windows installation while you are in Linux, but not the other way round. This tutorial shows three ways how you can access your Linux partitions (with ext2 or ext3 filesystem) from within Windows: Explore2fs, DiskInternals Linux Reader, and the Ext2 Installable File System For Windows. While the first two provide read-only access, the Ext2 Installable File System For Windows can be used for read and write operations.
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