Splunk App Development Tips – Working with Splunk This is a collection of useful tips and resources for developing Splunk apps. For an explanation of the available app types please see my earlier article on the topic. Read more
Splunk App Development Tips – Which App Type to Choose When you start with developing apps for Splunk the first big question you hit is a bit unexpected: which technology do you work with, which app type do you choose? Read more
Citrix ShareFile Sync on a New Computer with Existing Data Switching over to a new computer is certainly fun for a geek, but getting back to a perfectly tuned configuration can be a lot of work, whether you synchronize (part […] Read more
Customizing and Installing the Lenovo W540 Having made the switch from my trusty Lenovo T520 to the W540 here is my account of what works well and what does not. If you wonder what made me […] Read more
What DNS Pointer Records and Tweetups Have in Common Tools that monitor network traffic typically work with IP addresses, not server names. Humans, on the other hand, seem to prefer names over cryptic numbers. Most tools deal with that […] Read more
Now you can PROVE that it’s not Citrix but the backend! You have been there: end-users are complaining and your boss demands an explanation why “Citrix is slow” – again. You, the XenApp/XenDesktop admin, desperately look at Task Manager and Perfmon, […] Read more
Finding the Perfect Laptop, 2014 Edition My current laptop is nearly three years old. That is a pretty long time, and I have contemplated getting a new machine more than once in the last years. I […] Read more
Determining the Size of a Folder without Access or Permissions Imagine you need to determine the size of a directory, but you do not have access to it and cannot change the permissions, either. Such a situation is common with […] Read more
Error Connecting to C$: Device Attached to the System is not Functioning When I tried to connect to the administrative file share C$ on my wife’s computer I got the error A device attached to the system is not functioning. The other […] Read more
Migrating from Citrix UPM back to Roaming Profiles This article is part of Helge’s Profile Toolkit, a set of posts explaining the knowledge and tools required to tame Windows user profiles. As you may be aware Citrix Profile […] Read more
Some of the Best Splunk Marketing Slogans Extracted from Splunk.exe If you have ever been to a conference with a Splunk booth you will have noticed their t-shirts. They are all black with a cool slogan printed in white. When […] Read more
Solved: Citrix Desktop Service Fails to Start, Logs Event 1006 I am sure you all love XenDesktop VDAs that just won’t register. Although this is becoming less and less of a problem I had another case recently. Read more
Workaround for Unexpected Error in PowerCfg -SleepStudy PowerCfg is a nifty little tool for analyzing and configuring all kinds of things related to battery usage and power plans. In Windows 8.1 PowerCfg learned how to analyze the […] Read more
Race Condition – a Troubleshooting Tale The most obscure effects often have the simplest explanations – once you know where to go looking for them. Luckily uberAgent tells you exactly what is going on. Read more
Block-Based Encrypted Cloud Backup with Duplicati 2.0 I am an infrastructure guy (by heart – and a developer by nature). As such, topics like maintaining my own webserver (which I don’t – yet) or configuring backup deeply […] Read more
GPU Acceleration and Battery Life During Video Playback on Windows 8.1 This is what I have been doing for the past few days: draining the battery of my new Dell Venue Pro 11, a Windows 8.1 tablet (the real deal, not […] Read more
How to Send Data from C# to Splunk via the REST API Splunk has a very extensive REST API – which is just a fancy way of saying that many of its capabilities are accessible via standard HTTP(S) requests. While much of […] Read more
Configuring Citrix ShareFile Sync from PowerShell When you have a cloud-based file sharing service it makes a lot of sense to synchronize part or all of the data with your desktop computer. Citrix ShareFile offers the […] Read more
Remote Management of Windows PCs in an Isolated Security Zone With the advent of BYO it has become fashionable to regard PCs as untrusted devices that should be isolated in a dedicated security zone. Read more
Persistent VDI in the Real World – Sizing This is the third article in a multi-part series about building and maintaining an inexpensive scalable platform for VDI in enterprise environments. Previously in this Series In the last article […] Read more
Persistent VDI in the Real World – Storage This is the second article in a multi-part series about building and maintaining an inexpensive scalable platform for VDI in enterprise environments. Previously in this Series I started this series […] Read more
Monitoring any Application’s Startup Duration with uberAgent 1.6 Application startup duration is an essential component of user experience. If you want to make sure that UX on your Windows machines is acceptable you need to monitor the time […] Read more
Persistent VDI in the Real World – Architecture This is the first article in a multi-part series about building and maintaining an inexpensive scalable platform for VDI in enterprise environments. Requirements Before we can even start to think […] Read more
Workaround: “554 rejected due to spam content” sending e-mail It sometimes happens when I reply to an e-mail from somebody who is asking about my products that the receiving mail server rejects my message with the code “554 rejected […] Read more
Shutting Down Unused Persistent XenDesktop VMs When you use XenDesktop the only way it makes sense you may find that Citrix has not really put much effort into making that a smooth experience. Read more
How to Process Terabytes – per Day (or: my account of Splunk .conf 2013) Processing several terabytes of data per day is not too uncommon and easily possible with Splunk – that is one of the many things I learned at .conf 2013 in […] Read more
The Unofficial Atlantis Ilio FAQ This is a collection of answers to questions around Atlantis Ilio you are likely to have when using the appliance in production. Read more
uberAgent Now Monitors RES Workspace Manager Logon Times, Too Whether user profiles are loading slowly or group policy processing is taking too long – uberAgent for Splunk tells you exactly what is causing slow logons. uberAgent always supported a […] Read more
Error Message Explained: User Profile Service Failed the Logon This article is part of Helge’s Profile Toolkit, a set of posts explaining the knowledge and tools required to tame Windows user profiles. Many errors related to user profiles result […] Read more
Script: Gracefully Shut Down all VMs on a Given Set of Hosts (VMware/XenDesktop) Cleanly shutting down all virtual machines on a given set of hosts is not as trivial as it might seem – especially if you want to be able to restore […] Read more
