Using a Synology Disk Station for Wake On Lan

For my work I need to be able to access my home lab “server” frequently but in no way it needs to be always-on. This leaves me with the struggle of leaving it on and, for most of the time, consuming unnecessary  electricity or accept the fact that I can’t use it without proper planning.

So I was thinking of a way to have the best of both worlds, no waste of electricity but being able to use it whenever I want.

I thought of a system where I would run a script each evening shutting down the system. The script will prompt for the shutdown so when I’m still using it I am able to cancel the shutdown. This is the easy part, but how to get it on again…… What about that legacy Wake-On-Lan (WOL) protocol?

I started with just a simple WOL program on my Windows 8 company laptop and I was able to turn on the “server”. That’s cool but that doesn’t help because when I’m not at home this just doesn’t work. After a lot of thinking I though about that cool Synology Diskstation I have on my desk.

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Citrix NetScaler Traffic Domains ins and outs

Citrix NetScaler Traffic Domains are a way of segmenting network traffic for different applications or even tenants. You are able to use a traffic domain to create fully isolated network environments on a single NetScaler instance. An instance is a single appliance or a HA setup of two appliances.

Citrix NetScaler Traffic Domains were introduced with NetScaler 10.0. At first NetScaler Traffic Domains started as a somewhat hidden feature which you could only configure by CLI. As of version 10.1 Traffic Domains are fully configurable in the NetScaler GUI which makes it a lot simpler to use.

In a way NetScaler Traffic Domains could compete with the NetScaler SDX platform. With Traffic Domains we segment networks on a single NetScaler instance instead of the SDX where we create a virtual appliance per network segment.

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Apple OSX Mavericks Mail slow and memory consuming

If you are like me and you have been using Apple OSX for a while you might notice that the Mail application has the tendency to slow down after a while. Since Mavericks OSX Mail it also consumes a huge amount of memory.

After searching on the Apple support forum I finally found a solution that solved most of my memory usage and performance issues with Mail.

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Citrix NetScaler 10.x java applet hangs while starting

I’m verry happy to announce that since the 10.1 build 122.11 all is fine again and there is no need to change Java settings. If you are not able to upgrade right now please continue reading.

Normally I’m not all that in to short articles about fixing bugs but this one is nagging so many people I couldn’t resist in jumping in.

Some time ago I started running into issues with the Citrix NetScaler Java applets build in to the GUI. I ignored it for a while because I’d always had my own laptop with me that worked every single time . So here I was thinking I was so smart because I had the only working system in the world……. But then one day it just stopped working, it would load the applet up to 1% and then froze.

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Citrix XenDesktop 7 Advanced Image Management

With the release of Citrix XenDesktop 7 two provsioning methods are now available which fully support  hosted shared (HDC) and hosted private (HDC). The first provisioning method is Citrix Provisioning Services (PVS) and the second is Machine Creation Services (MCS).

There are a couple of important differences between the two provisioning methods which you need to know before choosing the right method for your design. In one of my earlier articles I showed a decision tree which helps choosing between both methods. I would recommend to read this great article about storage resource usage, by Nick Rantalan, as well.

This article focusses on a very important difference between Citrix Provisioning Services and Machine Creation Services, Advanced Image Management.

Advanced Image Management

Advanced Image Management (AIM) is more than simply assigning an image to a specific machine or a group of machines. It’s about a proper way of upgrading and assigning images according to DTP principles in a simple and time efficient manner. Automation plays an important part of AIM as it saves time and more importantly leaves out the possibility of human errors. Andrew Morgan wrote an excellent article about why you want to prevent human errors by using automation.

PVS offers great image versioning functionality, automated DTP and even automated image updates with the integration of third party solutions like Microsoft System Center Configuration Manager. This Citrix article explains the functionality in fine detail.

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Citrix XenDesktop 7 VDA installation issue on Windows 2008 R2

Citrix XenDesktop 7 VDA

Citrix XenDesktop 7 VDA

This will be a short article about an issue I ran into automating the Citrix XenDesktop 7 VDA installation.

As described on the Citrix edocs a silent install of the XenDesktop 7 VDA should be really straightforward. This is exactly what I was seeing when installing the VDA on Microsoft Windows 7, Windows 8 and Windows Server 2012.

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