Request for the permission of type 'System.Net.SocketPermission,  System, Version=4.0.0.0, Culture=neutral,  PublicKeyToken=b77a5c561934e089' failed.

In order to fix this there are three solutions:

1. Instead of MySQL, use Microsoft SQL server.

2. Move to a hosting provider that supports a full trust environment or get your own server.

3. Ask your hosting provider to update the medium trust policy with SocketPermission. The steps will be explained here:

Open the following file in a text editor:

C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config\web_mediumtrust.config

Or when you are running 64 bit:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\web_mediumtrust.config

Inside the SecurityClasses tag, add the following line:

<SecurityClass Name="SocketPermission" Description="System.Net.SocketPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>

Scroll down and look for the following PermissionSet:

<PermissionSet version="1" Name="ASP.Net">

Add the following inside this PermissionSet:

<IPermission class="SocketPermission" version="1" Unrestricted="true" />

That’s all, a restart of IIS is, as far as I know, not necessary.

After building the HTPC I first installed Ubuntu 10.10 using a USB stick. Then I used this guide to install XBMC.

In order to have smooth playback of movies you need to enable the NVidia drivers. I noticed some strange artefacts and glitches in Gnome (not XBMC) after a while. When the screen is refreshed (e.g. when you switch a user, or start XBMC) everything is normal again but after a while it starts to happen again. I haven’t found a solution yet…

Finally some useful links to new XBMC users:

• Uitzending gemist plugin including Dutch radio stations (see also this page)
• 12 Essential Tips to Using XBMC as the Perfect Media Hub

I will use the following parts:

• Motherboard: Asus AT5IONT-I (review)
• Case: Jetway JC-110-B
• Hard disk: Western Digital Caviar GreenPower WD20EARS, 2TB
• RAM: 2x Kingston ValueRAM KVR1333D3S9/2G
• Optical drive: Sony NEC Optiarc AD-7700S
• Remote: USB IR Media Remote

The total price is around 300 Euro.

Update March 24: The APlus Cupid 2 wasn’t available any more so I changed to the Jetway JC-110-B.

First thing you need to do is add a log4net section in your web.config if you don’t have one yet.

<configSections>
 ...
 <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
 ...
</configSections>

Then add the log4net section, and configure an appender and logger.

<log4net>
 <appender name="DebugSQL" type="log4net.Appender.TraceAppender">
 <layout type="log4net.Layout.PatternLayout">
 <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
 </layout>
 </appender>
 
 <logger name="NHibernate.SQL" additivity="false">
 <level value="DEBUG"/>
 <appender-ref ref="DebugSQL" />
 </logger>
</log4net>

That’s all. Don’t forget to configure log4net in the Global.asax.

protected void Application_Start()
{
 log4net.Config.XmlConfigurator.Configure();
 ...
}

In this window select your MIDI Controller inputs in the MIDI Inputs list. Press Ok and go to View → Input Monitor to view the MIDI input of your controller.

For all buttons and keys on your controller the MIDI note is listed in the NOTE column. Unfortunately when using the knobs and sliders on my Digital Jockey 2 no information was shown about the channel used. Please post a comment if you know how to extract this information or if there are better tools to view MIDI data.

In Traktor open the Controller Manager (in the Preferences window). Now press the Add Out.. button and choose Output → Beat Phase Monitor. For deck A modify the following settings:

• Note: Ch01.Note.G0
• Type of controller: LED
• Modifier Conditions are all empty
• Interaction mode: Output
• Assignment: Deck A
• Controller range min: 0
• Controller range max: 0.5
• Midi range min: 0
• Midi range max: 127
• Both Blend and Invert are off

Repeat this step for deck B, but now change Assignment to Deck B and Note to Ch01.Note.G5.

The first thing to do is create a new user.  Go to Start and click with the right mouse button on Computer and choose Manage from the submenu. In the left column choose Local Users and Groups and open the Users folder. Now create a new user (Action → New User or right mouse button → New User):

Click Create and close the window. The next thing to do is change the permission of your music folder:

1. Open Properties of your music folder
2. Open the Security tab and press the Edit button
3. In the Permissions window, choose Add
4. Enter the name of your Traktor user and press OK
5. Make sure the Traktor user is selected and in the permissions list check Deny for the Write permission

The final step is running Traktor as the newly created user. To do so go to Start and navigate to the Traktor shortcut. Now hold Shift and right click on the shortcut. Choose Run as different user and enter the Trakor user credentials. Since you start Traktor using a different user you need to reconfigure the application, but Traktor has no permission to modify your files any more.

Now startup LEd. In order to create a new paper go to File → New and on the Template tab choose Paper. In the file tree, open your .tex file. You will see something like this:

\documentclass{article}
 
\title{...}
\author{...}
\date{...}
 
\begin{document}
\maketitle
 
\section{...}
 
\section{...}
 
\end{document}

You can change the dots for anything you like and add text under the \section tags:

\section{Introduction}
Lorem ipsum dolor sit amet...

Now it’s time to compile the LaTeX document; press the green arrow button in the toolbar or F9. Press the blue arrow or F7 to create a PDF file (the file is stored in the same folder as your .tex file):

In scientific papers it’s quite common to refer to other papers. In order to manage this we use BibTeX. First create a .bib file adding a new file to the project: File → New and choose “Bibliography file in BibTeX format”. Name the file for example mybib and make sure to add it to the right project. Add the following example text to your .bib file:

@article{miles09,
 author = {Richard Miles},
 title = {Who is John Doe?},
 year = {2009},
 journal = {The Unknown Magazine},
 volume = {1},
 number = {1},
 pages = {20--42}
}

In your .tex file, add the following commands before the \end{document} tag to enable the bibliography:

\bibliographystyle{plain}
\bibliography{mybib}

Now if you want to cite something simply type \cite and a window will popup containing all the entries in your bibliography:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. \cite{miles09}

Compile the bibliography file by pressing the blue book icon or F6. Then compile your LaTeX file and create a PDF. As you can see the bibliography is included in your document:

That’s all for now, for more information about the BibTeX format see this page. Enjoy LaTeX!