Wake on lan on M2N-E motherboard with Debian/Ubuntu (Linux?) installed

From time to time you have those funny solutions to hardware bugs. 3 years ago I built a file server based on the latest version of Debian. Since I bought the board I could not wake the server on the onboard NVidia network card. I temporary solved the problem by placin a 2nd NIC, but I’m fed up with the 2 cables running to the server so I finally found a solution:

Reverse the MAC-address when you perform a wake-on-lan and the magic happens.

Tested on Debian 2.6.28-11-server from a Windows 7 x64 workstation.

Thanks to: http://ubuntuforums.org/showthread.php?t=234588&page=3

 

 

Log user sessions

Ever wanted to log terminal server / citrix user sessions in a plain and simple text file, than this is your tool: tsuserlog.

http://support.citrix.com/article/CTX114179

Fences

Today I discovered the “free for personal use” Fences from Stardock. The Program rules jamongously (and yes I know that word does not exist). If Microsoft should have put 1 new feature in Windows 7 than it should have been esthetic shortcut grouping for the Windows desktop.

http://www.stardock.com/products/fences/

 

Speeding up Gigabit file transfer between Linux and Vista

Gigabit samba transfers between Vista machines and Linux servers might be appearing slow from time to time. I used 2 things to speed up the process. I am not completely satisfied with the results, because speeds seam to be quite variable (from 90MB/s to 25 MB/s), but the following 2 steps appeared to be an improvement:

• Enable jumboframes in on your Vista machines (can be configured in your NIC properties) and on your linux machine (add mtu 9000 to your /etc/network/interfaces configuration)
• Disable remote differential compression on your Windows machine, this is a feature you can disable by using Control Panel > Programs and Features > Turn Windows Features on or off

I use Yukon gigabit onboard network cards, cat 5e cabling and a Dlink DGS-1008D/E gigabit switch. My linux target is a 5-disk mdadm array on Debian with a 2.6.18-6-amd64 kernel.

TS Gateway in NLB setup

http://blogs.msdn.com/rds/archive/2009/03/24/improving-ts-gateway-availability-using-nlb.aspx

How to save a password in a RDP file

http://www.petri.co.il/forums/showthread.php?t=25204

Something to test.

How to create a new local repository in XenServer

xe sr-create content-type=”localSR” host-uuid=171e4df0-3bfc-489b-93c3-6e3db186f19b type=ext device-config:device=/dev/cciss/c0d2 shared=false name-label=”Local Storage 3“

Change the green parts according to your configuration. The /dev/ mapping you will find in the current storage repositories; make sure you check this first, so you don’t mess with the existing repositories.

How to create a XenServer storage repository

http://support.citrix.com/article/CTX116322

Citrix secure gateway certificate and the Java Client

A problem which I encountered at a customer, was that an imported root & intermediary certificate from Thawte did not work when using the Citrix Xenapp Java client. Apparently the Java client cannot read in the certificate store of the OS, the files need to be store d separately (see http://support.citrix.com/article/ctx516080).

Configure new certificate for Citrix Secure Gateway

You need to do 3 things to install a new certificate on a secure gateway after you changed your secure gateway URL, thus invalidating your certificate:

1. Change your webinterface URL if webinterface is installed on the same server as the secure gateway. Do this in the access management console.
2. Import the new certificate in the Computer account certificate store via the certificates mmc (Do not user the IE certificate wizard)
3. Use the secure gateway configuration wizard to select the new certificate. The private key needs to be installed on the server.

The wizard will propose to restart the secure gateway service, all users will lose their connection, but will be able to reconnect.

See the little key, private certificate is installed on the server, otherwise it is not.

If you missed step 1 and you are logged in at a customer who only has secure gateway, you will get SSL error 59, because you are trying to connect to a webinterface which does not correspond with the certificate URL. In this case download the ICA file from the webinterface and change your webinterface address in the ICA file. By opening the ICA file you will now be able to connect to the webinterface over secure gateway. Now change the setting in the access management console.