I don’t care-as-a-Service

Written by Ingmar Verheij on November 15th, 2015. Posted in Cloud, Geen categorie

I dont care as-a-serviceAfter many years of making fuzz about Cloud, it’s happening. Cloud is hotter than ever and companies are now seriously considering to change their strategy. Some choose a “Cloud where possible” strategy where others go for a “Cloud unless” approach.

So what is it that makes companies are so focussed on Cloud (after the industry hyped this for many years)? IMHO there’s a very simple reason: they don’t care about technology because they don’t want to care.

And you know what? It makes sense. Companies run a business, they provide services to their customers. They’re not an IT shop, they need IT to drive their business. This is a fundamental statement I’ve heard throughout my entire career told by every customer.

Companies don’t care how IT does it, it just needs to work. They need a service.

And there you go, there’s the one reason companies are moving to “Cloud”. Or better, they’re consuming services from other companies that specialised in that service. IT departments had their chance, for many years, to help businesses. They failed, miserably, over and over again.

Bediening WTW, altijd op de verkeerde plek?

Written by Ingmar Verheij on January 31st, 2015. Posted in Other

Brink 4 standenschakelaar

Sinds een jaar of twee woon ik een nieuwbouw woning waarin een WTW (warmeterugwinunit) zit om het huis van frisse lucht te voorzien en energie te besparen. Zo’n WTW installatie kan met behulp van een schakelaar in verschillende standen worden gezet. Sommige schakelaars zijn tevens voorzien van een indicatie-led voor het vervangen van de filters (dit is bij mij ook het geval).

Het idee van de standen is eenvoudig: 1 – ik ben op vakantie (laag) , 2 – ik ben thuis (normaal), 3 – ik kook / douche (hoog). Oftewel, als je gaat koken / douchen dan wordt er aangeraden om de schakelaar tijdelijk (30 min) in stand 3 te zetten. Nu vind ik koken discutabel wanneer je een afzuigkap hebt maar voor douchen valt iets te zeggen, het wordt immers best vochtig in een huis (waarin geen ventilatieroosters zitten).

Update 7-2: Componenten besteld, eerste resultaten luchtvochtigheid en accu (zie onderaan).


Mijn dilemma

Ietwat onhandige locatie voor een schakelaar...Waarom zit deze schakelaar ALTIJD op de verkeerde plek? In de meeste huizen zit de knop OF in de keuken OF in de badkamer. In mijn geval is de locatie van de knop nog iets aparter, hij hangt naast de WTW-unit (op zolder, in een kast)… Daar ben ik overigens pas na 2 jaar achter gekomen (en dus ook dat er een indicatie-led is voor het vervangen het filter).

Zit de knop in de keuken dan moet je naar beneden als je gaat douchen en als de knop wel in de badkamer zit dan moet je eraan denken om de knop van 2 > 3 te zetten en na 30 min weer van 3 > 2. Dat laatste is probleem, maar als IT’er ben ik van nature lui aangelegd (“dat kan beter”).

One Content Switch to rule them all!

Written by Ingmar Verheij on August 17th, 2014. Posted in Netscaler

One content switch to rule them allThe Content Switch (CSW) is a beautiful feature that enables you to use a single point of entry – your NetScaler – to host multiple services (like XenDesktop, XenMobile and Sharefile). Based on the content (and context) requested the CSW will direct the traffic to the server offering the best service suitable for the task.

Since I visit sites that restrict outgoing traffic to known ports (sometimes only port 80 and 443), and only have a single IP in my home lab, I needed a solution that allows me to demo several Citrix products using the same entry point. In this article I’ll show you how you can use the CSW to host several Citrix products (XenDesktop, XenMobile and ShareFile) using a single IP and port.

Disclaimer: Parts in this setup are not supported and therefore shouldn’t be used in production environments!

Disable “Allow the computer to turn off the device to save power” for all WiFi adapters

Written by Ingmar Verheij on May 1st, 2014. Posted in Other

When a Windows computer enters sleep mode it ensures that WiFi adapters enters the device power state D3 (Sleep) and on resume ensure it puts it back to the device power state D0 (Full on).

Windows assumes that if a driver says it supports sleep states it handles this correctly, but this setting is known to cause some spontaneous disconnects with the access point (AP). Optionally Windows can be configured to place the WiFi adapters in device power state D4 (Off).

I wrote a PowerShell script that disables the “Allow the computer to turn off this device to save power” setting for all WiFi adapters (contact me if you want it to disable ALL network adapters).

Run and compile .NET code in RES Workspace Manager (using PowerShell)

Written by Ingmar Verheij on April 30th, 2014. Posted in PowerShell, Workpace Manager

There are occasions where you need a custom solution to fulfill a requirement which cannot be solved with existing applications or tools. This is usually where scripting comes into the picture, nowadays we tend to built most scripts using Microsoft PowerShell as it’s a very powerful framework with a huge repository of cmdlets. Nonetheless there are situation where PowerShell has no built-in cmdlet (or third party cmdlet is available) and you’d have to revert to API’s or .NET code.

Wouldn’t it be a shame if you’d have to write and compile .NET code using an IDE like Visual Studio before you can use that code? Well, there’s a solution!