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Ubuntu

Installing Windows XP As A KVM Guest On Ubuntu 8.10 Desktop

Post date: February 15, 2009, 12:02 Category: Miscellaneous Views: 4404 Comments
Tutorial quote: There's a bug in virt-install and virt-manager on Ubuntu 8.10 that does not let you run Windows XP as a guest under KVM. During the Windows installation, the guest needs to be rebooted, and then you get the following error, and Windows XP refuses to boot: "A disk read error occured. Press Ctrl+Alt+Del to restart". This guide shows how you can solve the problem and install Windows XP as a KVM guest on Ubuntu 8.10.
Linux

How to install Linux on Windows using VirtualBox

Post date: August 12, 2008, 14:08 Category: Installing Views: 3063 Comments
Tutorial quote: This guide explains how to install Linux and specifically Ubuntu Linux on Windows XP using SUN's VirtualBox. VirtualBox creates a virtual hard drive in which you can install another guest Operating System (Ubuntu Linux) which you can run along with your host Operating System (Windows XP). This way you can try Linux without being afraid of losing your Windows files.
Unix+clones

CLI Magic: OpenSSH + Bash

Post date: January 25, 2006, 20:01 Category: Network Views: 2929 Comments
Tutorial quote: As a system administrator, I have used OpenSSH's piping abilities more times than I can remember. The typical ssh call gets me access to systems for administration with a proven identity, but ssh is capable of so much more. In combination with bash's subshell invocation, OpenSSH can distribute the heavy work, reduce trace interference on a system under test, and make other "impossible" tasks possible. I've even used it to make Microsoft Windows remote administration easier.

In the examples below, I have tried to avoid GNU-specific idioms for tools which have non-GNU counterparts. This practice improves portability of shell scripts in heterogeneous environments.
Debian

Managing Xen With Xen-Tools, Xen-Shell, And Argo

Post date: November 5, 2006, 21:11 Category: System Views: 4243 Comments
Tutorial quote: This guide describes how to install and use xen-tools, xen-shell, and Argo on a Debian system. All three packages provide useful tools for the administration of virtual Xen machines. Xen-tools is a collection of Perl scripts that allow you to easily create, update, and delete Xen guest domains. The xen-shell provides a command-line interface to owners of Xen domains so that they can manage their Xen domains without the help of the server administrator. And with Argo, you can control Xen domains through a web interface or through a menu on the command line.
Solaris

Configuring Sendmail

Post date: April 13, 2005, 03:04 Category: Network Views: 3977 Comments
Tutorial quote: Sendmail has the reputation of having the most hideous configuration file in the history of mankind. It's extremely long and incredibly cryptic. However, it is this very complexity that has made it the most popular MTA (Mail Transport Agent) on the Internet. Its' flexibility allows sendmail to handle the most demanding, disjointed mail routing and serving configurations you can dream up.
FreeBSD

Lightweight Web Serving with thttpd

Post date: December 1, 2005, 00:12 Category: Software Views: 7760 Comments
Tutorial quote: The Apache HTTP Server is the most popular web server due to its functionality, stability, and maturity. However, this does not make it suitable for all uses: slow machines and embedded systems may have serious problems running it because of its size. Here is where lightweight HTTP servers come into play, as their low-memory footprints deliver decent results without having to swap data back to disk.

Similarly, these small HTTP servers are suitable to serve static content efficiently so as to allow Apache, mod_perl, mod_python, or even servlet containers to handle dynamic requests without tying up memory-hungry children to serve small images. In other words, these applications can serve as a complement to your existing full-featured web server, not as a replacement.

One of these servers is thttpd, a simple, small, portable, fast, and secure HTTP server. Among its features are support for the HTTP/1.1 standard, CGIs, virtual hosts, and IPv6. This article shows how to install and configure this software under NetBSD. I chose NetBSD not only because it is my preferred OS, but also because it has the ability to run on the most disparate old hardware, where thttpd shows its strengths. I had a Macintosh Performa 630 (a 68LC040 chip at 33MHz) running NetBSD/mac68k 2.0 with thttpd on top of it, serving pages to my home network nicely.
Linux

Monitoring disk space and usage

Post date: June 17, 2006, 15:06 Category: Software Views: 4461 Comments
Tutorial quote: Monitoring disk space is a vital part of your job as a UNIX administrator. This article gives you the tools you need to be successful, including the use of df, du, find, and even the use of quotas. Let's get started by taking a look at how useful df can be.
Unix+clones

DNS name serving through NSD

Post date: July 5, 2005, 06:07 Category: Network Views: 3037 Comments
Tutorial quote: Given the sheer importance of name servers in providing Domain Name System (DNS) resolution -- a process used by every Web-facing application to translate domain names into IP addresses and vice versa -- not many people put much thought into the available software alternatives for pulling off this feat. One compelling application is NSD, an alternative to the widely deployed BIND name server.
CentOS

System Monitoring with the Sysstat package

Post date: August 18, 2006, 07:08 Category: System Views: 3559 Comments
Tutorial quote: A system administrator needs to know how systems are performing. Using the Sysstat package, this tutorial will show how to monitor a system for performance.

Linux

Adding Windows Fonts in Linux

Post date: December 3, 2005, 07:12 Category: Desktop Views: 2538 Comments
Tutorial quote: Unlike past times, Linux do come with good fonts. And the font rendering can be made better by choosing to antialiase the fonts. But at times you come across a website which has been designed with the windows user in mind. Such websites are best viewed with one of the windows fonts. If you have windows OS installed on your machine, you can copy the essential fonts from the windows partition to linux and use them to get a better web experience. Here is how you do it.
Web-based applications and online marketing solutions - LumoLink