How to Virtualize Windows 2008 SBS with Xen on CentOS 5

Installing Windows SBS 2008 as a Xen Fully Virtualized guest using the XEN hypervisor on CentOS 5 is fairly straight forward.

Prerequisites

Starting off we need a CentOS 5 server with at least 4GB of free RAM and enough hard disk space to support SBS. The processors must support x86 Virtualization either Intel VT or AMD V. Virtualization must also be enabled in the system BIOS. If you server supports Hyper-threading you may want to turn it off, as this might improve performance with a Windows 2008 VM. The Xen hypervisor presents the individual hyper-threaded cores as physical cores to ...

— Andrew


How to unprotect PDF files in Linux

Here's a quick and dirty way to remove PDF protections and allow printing of a PDF that has been restricted.

First we need to convert the PDF to Postscript using Ghostscript. Next, we convert the Postscript back to PDF.

Note: The conversion isn't 100% accurate, but should be sufficient for most purposes.

Example:

pdftops Example.pdf Example.ps
ps2pdf Example.ps Example_unprotected.pdf

This only works for an encrypted PDF that allow viewing without a password but not printing or copying.

pdftops and ps2pdf can be installed onto most Linux distributions using your systems package manager.

— Andrew


Proxy for IMAP connections

If you're building a large IMAP cluster and need an IMAP capable proxy then you might want to check out the following:

— Andrew


Windows reserved words

Tales from the Level 3 Helpdesk: A colleague told me an interesting tale about a strange situation he encountered whilst working for a large multinational IT helpdesk. A new user called up and was having trouble with their computer. Their home drive was not being mapped automatically upon login and 3 tech's had given up trying to troubleshoot the situation. A most senior engineer overheard two techs discussing this issue and just casually asked:

His name's not Con, is it?

As it turned out it his first name was, and that was of course the cause of the ...

— Andrew


US DoD Commitment to OSS

The US Department of Defense has reiterated its commitment to Open Source software and released a memo clarifying it's use:

To effectively achieve its missions, the Department of Defense must develop and update its software-based capabilities faster than ever, to anticipate new threats and respond to continuously changing requirements. The use of Open Source Software (OSS) can provide advantages in this regard. This memorandum provides clarifying guidance on the use of OSS and supersedes the previous DoD CIO memorandum dated May 8,2003 (reference (a)).

The memo will soon be posted the DOD Memorandums site:

http://www.defenselink.mil ...

— Andrew


CentOS 5.4 Linux Released

A long time coming. Since upstream vendor Red Hat released their 5.4 back in September. Well worth the wait:

We are pleased to announce the immediate availability of CentOS-5.4 for i386 and x86_64 Architectures.

— Andrew


IBM pushes Ubuntu for Linux desktop effort

IBM announced an extension of its Microsoft-Free PC effort together with Canonical Ubuntu Linux:

The IBM/Canonical offer is an interesting one and the timing against Windows 7 is a brilliant stroke of marketing.

Read more:

— Andrew


London Stock Exchange move to Open Source confirmed

In a move that is sure to ruffle some feathers in Redmond, LSE are set to dump their Windows based trading system, TradElect:

— Andrew


Microsoft's CodePlex Foundation

Microsoft recently announced the creation of the Codeplex Foundation. What does it mean for free software?

Free Software Foundation president Richard Stallman responds:

Original article at http://www.fsf.org/blogs/rms/microsoft-codeplex-foundation

Lest CodePlex Perplex

by Richard M. Stallman President

Many in our community are suspicious of the CodePlex Foundation. With its board of directors dominated by Microsoft employees and ex-employees, plus apologist Miguel de Icaza, there is plenty of reason to be wary of the organization. But that doesn't prove its actions will be bad.

Someday we will be able to judge the organization by its actions ...

— Andrew


Australian Police recommend Linux for Internet banking

Australian Police are now recommending that Windows users keep a clean dual boot Linux image for secure Internet banking:

Cybercrime expert endorses Linux, iPhone when banking online.

Consumers wanting to safely connect to their internet banking service should use Linux or the Apple iPhone, according to a detective inspector from the NSW Police, who was giving evidence on behalf of the NSW Government at the public hearing into Cybercrime today in Sydney.

Read more http://www.itnews.com.au/News/157767,nsw-police-dont-use-windows-for-internet-banking.aspx

— Andrew


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