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Unix+clones

Split and Reassemble Files

Post date: September 20, 2006, 20:09 Category: Software Views: 4186 Comments
Tutorial quote: There always comes a time, where you wish that file was only a few kilobytes/megabytes smaller. Wether it be so it can fit onto your floppy disk, CDR etc, or so you can meet the attachment limit on an e-mail server. This isn't really a command that you would use everyday, but it might come in handy.
Linux

Back Up Linux And Windows Systems With BackupPC

Post date: January 28, 2007, 21:01 Category: System Views: 4484 Comments
Tutorial quote: This tutorial shows how you can back up Linux and Windows systems with BackupPC. BackupPC acts as a server and is installed on a Linux system, and from there it can connect to all Linux and Windows systems in your local network to back them up and restore them without interfering with the user's work on that system. On the clients minimal to no configuration is needed. BackupPC supports full and incremental backups, and it comes with a neat web frontend for the administrator and normal user so that backups and recoveries can be managed through a web browser. It should be noted, however, that BackupPC does file-based backups, not bit-wise backups like Ghost4Linux, for example, so it is not made for disk/partition imaging.
Debian

Distributed Storage Across Four Storage Nodes With GlusterFS On Debian Lenny

Post date: June 25, 2009, 11:06 Category: Installing Views: 3176 Comments
Tutorial quote: This tutorial shows how to combine four single storage servers (running Debian Lenny) to one large storage server (distributed storage) 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.
SuSe

Installing FreeNX Server on SUSE 10

Post date: December 27, 2005, 15:12 Category: Network Views: 7170 Comments
Tutorial quote: Not long ago, I reviewed SUSE Linux 10 and found that they had included the latest version of FreeNX (a free version of NoMachine's NX Server) on the installation media. I'd never really tried FreeNX at that point but had heard some good things about it, so I thought I'd give it a shot. Well, once it was installed and working I have to say I was immediately impressed by how simple it was to setup and how well (read: fast) it performed over a WAN connection. I was literally able to get my desktop at home from anywhere else in the world and get near-local speed. Normally, working on a remote system is alright until you need to type in any shape or form. There was almost no delay from the time I'd press a key to the time it would show up on the screen. This is what sold me on FreeNX and prompted me to offer to write a HOWTO on the topic. I was overwhelmed with email from our readers asking that I write it... so here we are!
Debian

How To Combat Viruses Using Your Postfix Configuration

Post date: September 18, 2006, 14:09 Category: Security Views: 3383 Comments
Tutorial quote: In this guide you will learn how to tweak the HowtoForge mail guide for Postfix (+Auth SMTP + Quota), setup to give better Virus protection.
Linux

NFS over CIPE-VPN tunnels

Post date: May 23, 2005, 16:05 Category: Network Views: 2871 Comments
Tutorial quote: The Network File System (NFS) is a standard protocol for sharing file services with Linux and Unix computers. It is a distributed file system that enables local access to remote disks and file systems and is based on the client\server architecture. Although easy to configure, it is typically used only to transfer data over an intranet or LAN because of its transparency and security potholes when exposed to the risks of the Internet. However, it still can be employed -- without compromising security -- to share files over the Internet by configuring it to run on a Virtual Private Network (VPN) connection. This article will show you how to set up NFS to run over a CIPE-VPN connection between two Linux systems.
Debian

Striping Across Four Storage Nodes With GlusterFS On Debian Lenny

Post date: July 12, 2009, 10:07 Category: Installing Views: 3253 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.
OpenBSD

Using OpenBSD

Post date: April 26, 2006, 14:04 Category: Miscellaneous Views: 8573 Comments
Tutorial quote: Many people responded to the call for OpenBSD and OpenSSH donations by purchasing an OpenBSD CD set. Those CDs are beginning to arrive in the mail, and when they do, how are you going to use them? If you're a software enthusiast who has never used OpenBSD before, you might enjoy installing it by yourself and figuring it out as you go. If, however, you're looking for a more practical approach to using OpenBSD as a desktop or server operating system, here's a guide to get you started.
Debian

Majordomo Configuration

Post date: April 10, 2006, 18:04 Category: Network Views: 2315 Comments
Tutorial quote: Majordomo is a program which automates the management of Internet mailing lists. Commands are sent to Majordomo via electronic mail to handle all aspects of list maintenance. Once a list is set up, virtually all operations can be performed remotely by email, requiring no intervention upon the postmaster of the list site.
CentOS

Distributed Replicated Storage Across Four Nodes With GlusterFS (CentOS 5.4)

Post date: March 23, 2010, 13:03 Category: Installing Views: 3421 Comments
Tutorial quote: This tutorial shows how to combine four single storage servers (running CentOS 5.4) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network. If you lose one server from replication1 and one from replication2, the distributed volume continues to work. The client system (CentOS 5.4 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.
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