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Search results for Gnu Queue: Linux Clustering Made Easy

Debian

High-Availability Storage With GlusterFS On Debian Lenny

Post date: June 9, 2009, 11:06 Category: Installing Views: 4317 Comments
Tutorial quote: This tutorial shows how to set up a high-availability storage with two storage servers (Debian Lenny) that use GlusterFS. Each storage server will be a mirror of the other storage server, and files will be replicated automatically across both storage servers. The client system (Debian Lenny as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86-64 servers with SATA-II RAID and Infiniband HBA.
SuSe

Making a DVD from CDs

Post date: December 4, 2005, 16:12 Category: Installing Views: 4027 Comments
Tutorial quote: People have requested to have a single DVD instead of the 5 CD's. The reasons for this are various. I have written a program called makeSUSEdvd that can make the DVD in a very easy manner. First download the CD's. These can be either the NOVELL SUSE CD's or the openSUSE cd's. You do not need to burn them, just put them in one directory with only the 5 CD's in it. You will need the root password. If you do not have that, the program is not good and you should do it by hand.
Debian

Striping Across Four Storage Nodes With GlusterFS On Debian Lenny

Post date: July 12, 2009, 10:07 Category: Installing Views: 3650 Comments
Tutorial quote: This tutorial shows how to do data striping (segmentation of logically sequential data, such as a single file, so that segments can be assigned to multiple physical devices in a round-robin fashion and thus written concurrently) across four single storage servers (running Debian Lenny) with GlusterFS. The client system (Debian Lenny as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86-64 servers with SATA-II RAID and Infiniband HBA.
Unix+clones

Sharing photographs online

Post date: July 18, 2005, 22:07 Category: Software Views: 3094 Comments
Tutorial quote: It is so convenient to take pictures on digital cameras that (it has been argued) we are all becoming better photographers: we take more pictures and therefore are able to choose only the best for printing and sharing. It is easy to experiment, see the results quickly, and share them with friends. The Internet makes sharing photographs very simple and a lot of fun.
Unix+clones

How To Automate Spamcop Submissions

Post date: May 26, 2006, 07:05 Category: Network Views: 3460 Comments
Tutorial quote: Spamcop is a service which provides RBLs for mailservers in order to reject incoming mail from spammers.

Their philosophy is to process possible spam complaints from users. When they receive a certain amount of complaints during a time-period then they will blacklist the offender. This system is dependant on spam reporting from users. However, their submission process is not very user-friendly.

As I have said above, Spamcop is pretty much dependant on the user input. If no one submits and verifies spam, then they will have no blacklist. However that whole submission and verification process is a bit annoying. Why should I bother to actually submit spam to spamcop and have it verified? If I just delete it, that will take less time...

The human being isn't really made to do repeating things. This gets quickly boring and hence my idea to automate this submission and verfication process.
In this howto I will show you how I achieved that. All I do is just putting the spam into certain folders and our good old friend cron does the rest.
FreeBSD

Bluetooth Security Review, Part 1

Post date: April 30, 2005, 00:04 Category: Security Views: 3542 Comments
Tutorial quote: Bluetooth (BT) wireless technology provides an easy way for a wide range of devices to communicate with each other and connect to the Internet without the need for wires, cables and connectors. The technology seams to be very interesting and beneficial, yet it can also be a high threat for the privacy and security of Bluetooth users.
Unix+clones

Bypass any Firewall or Throttling ISP with SSH

Post date: October 22, 2007, 06:10 Category: Network Views: 4973 Comments
Tutorial quote: On some networks it’s impossible to use BitTorrent. For example, if you’re at work, school, or connected to Comcast or a public hotspot. But there’s an easy solution to overcome this problem. By using a secure connection (SSH), you can bypass almost every firewall or traffic shaping application.
Unix+clones

Learn REXX fast

Post date: September 1, 2005, 01:09 Category: Programming Views: 3729 Comments
Tutorial quote: If you’ve programmed under IBM operating systems, you’ve undoubtedly heard of Rexx. Rexx is the scripting and command language IBM bundles with all its mainframe, mid-range, and lower-end operating systems. What you might not be aware of is that Rexx also runs on almost every other operating system in the known universe. You can download Rexx free for all versions of Windows®, Linux, UNIX®, BSD, Mac OS, and DOS, and many other systems. It even runs on the three major operating systems for handheld devices: Windows CE, Palm OS, and Symbian/EPOC32.

What this means is, if you learn Rexx, you’ll know a scripting language that runs everywhere from mainframes to handhelds—and everything in between. Rexx is a general-purpose language that's powerful enough for mainframes yet flexible enough for other platforms. Best of all, Rexx is easy to learn.
Linux

How To Migrate Mailboxes Between IMAP Servers With IMAP TOOLS

Post date: October 27, 2011, 08:10 Category: Miscellaneous Views: 20515 Comments
Tutorial quote: This guide explains how you can migrate mailboxes between IMAP servers with IMAP TOOLS. IMAP TOOLS is a collection of Perl scripts that allow you to do various tasks with IMAP servers and also POP3 servers. In this article I will focus on the scripts imapcopy.pl (copies messages and mailboxes from one IMAP server to another) and pop3toimap.pl (copies POP3 messages to an IMAP server). Both scripts support SSL. If you specify port 993 (995 for POP3) then an SSL connection is initiated. If the port number is 143 (110 for POP3) then it will try a non-SSL connection. With any other value the port will be tested to see if it supports SSL. If so, SSL will be used to make the connection; otherwise a non-SSL connection will be made.
Fedora

Back Up Your Files With Fwbackups On Fedora 8

Post date: February 28, 2008, 12:02 Category: Desktop Views: 3769 Comments
Tutorial quote: This document describes how to set up, configure and use Fwbackups on a Fedora 8 desktop. The result is an easy-to-use backup system for desktop usage. Fwbackups creates partial backups which can be stored locally or on a removable device. You have also the option to run scheduled backups.
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