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Unix+clones

Have a Bash With This Linux Shell

Post date: April 15, 2005, 05:04 Category: Programming Views: 3085 Comments
Tutorial quote: Any Linux administrator who wishes to remain sane relies heavily on scripting to automate routine tasks, customize jobs, and build the plumbing that connects the different utilities that make a Linux system run smoothly. The Linux world is chock-full of scripting languages: Perl, Python, PHP, Scheme, Tcl, Tk, Ruby, Forth, Smalltalk, Eiffel, and doubtless many more. To get the column started, we'll look at shell scripting with Bash, and scripting with Python and Perl.
Debian

Virtualization With Xen 3.3.1 On Debian Etch

Post date: February 12, 2009, 12:02 Category: Installing Views: 2580 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install Xen 3.3.1 on a Debian Etch (4.0) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware.
Ubuntu

VMware Server 2.0.2-x On Ubuntu Server 10.04 With VMware Remote Console Plug-in

Post date: August 24, 2010, 16:08 Category: Installing Views: 3977 Comments
Tutorial quote: Today I will tell you how to set up a new Ubuntu 10.04 server which runs VMware server 2.0.2-x and the VMware Remote Console Plug-in. With VMware Server you can create and run guest operating systems ("virtual machines") such as Linux, Windows, FreeBSD, etc. under a host operating system. This has the benefit that you can run multiple operating systems on the same hardware which saves a lot of money, and you can move virtual machines from one VMware Server to the next one (or to a system that has the VMware Player which is also free).
Linux

SpamAssassin and Amavisd

Post date: April 14, 2005, 13:04 Category: Network Views: 2634 Comments
Tutorial quote: The bad news is, it's SpamAssassin, not SpammerAssassin. The good news is it kills spam quite effectively, and fits nicely into an anti-spam, anti-virus gateway. This article, which shows how to use SpamAssassin with Postfix, is the first in a series on building an anti-spam and anti-virus gateway. This gateway works equally well for a single PC, or for a large network.
Unix+clones

Using network transfer protocols

Post date: April 15, 2005, 18:04 Category: Network Views: 2135 Comments
Tutorial quote: Let's face it, most of us are in a rut when it comes to moving our files around. We learned how to use a simple FTP client years ago, and maybe even updated to a GUI FTP client when we were feeling particularly adventurous. There are actually a wealth of tools available for transferring files, and some of them perform automation functions that can easily assist your business in building site mirrors, synchronizing directory contents, and more.

Keep in mind that for many of the tools covered here, there's only really room to skim through their features. Some, such as wget and rsync, are full of useful capabilities for those brave enough to read their man pages and experiment.
Ubuntu

Creating Virtual Machines With vmbuilder On Ubuntu 8.10

Post date: December 16, 2008, 12:12 Category: Miscellaneous Views: 3764 Comments
Tutorial quote: vmbuilder is a tool (introduced on Ubuntu 8.10) that allows you to build virtual machines (with Ubuntu as the OS) for multiple virtualization techniques. Currently it supports Xen, KVM, VMware Workstation 6, and VMware Server. You can afterwards copy the virtual machines to another system (a Xen, KVM, VMware Workstation 6, or VMware Server host) and run them there.
CentOS

Installing Xen On CentOS 5.2 (i386)

Post date: November 9, 2008, 12:11 Category: Installing Views: 4873 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install Xen on a CentOS 5.2 system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called virtual machines or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.
Debian

The Perfect Xen 3.0 Setup For Debian

Post date: April 1, 2006, 05:04 Category: System Views: 2657 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install Xen (version 3.0.1) on a Debian Sarge (3.1) system.

Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.
CentOS

Paravirtualization With Xen On CentOS 5.3 (x86_64)

Post date: May 17, 2009, 13:05 Category: Miscellaneous Views: 4653 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install Xen (version 3.0.3) on a CentOS 5.3 (x86_64) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.
Linux

How-to build a LINUX router, firewall, gateway

Post date: June 13, 2010, 09:06 Category: Network Views: 4211 Comments
Tutorial quote: This tutorial shows how you can use a linux box as a bridge, router, firewall and gateway.
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