fujitsu-celsius-j550-front-and-back

The Perfect Workstation: Fujitsu Celsius J550

When it comes to selecting a general-purpose workstation I tend to be looking for the impossible: high performance, superb reliability, quiet operation, moderate price. Amazingly, there exists at least one device with all those qualities: the Fujitsu Celsius J550. The Perfect Workstation The perfect workstation should be: reliable fast silent well-supported energy-efficient user-upgradeable small …and […]

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ubuntu-vm-after-compacting

Faster Trimming & Compacting of Hyper-V Ubuntu VMs

A while ago I described how to compact an Ubuntu VHDX running on Hyper-V using the sfill command. Running sfill, however, can take hours. Luckily, there is a much faster alternative. Ubuntu Trim and Hyper-V Ubuntu running in a Hyper-V virtual machine has been supporting the trim command since version 14.04 (details). The OS issues […]

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<a href="https://www.flickr.com/photos/gsfc/15618006994/in/photolist-pN7nmE-rjQRm5-dSzo2A-qEAQKJ-qGTuRP-bUzuxV-riVjBA-ee6PqM-8F1eDH-4zms5-eT6whT-nbxsKE-qxoLMF-r74Pq9-cbVu4q-qD8Npg-cE76Ss-fKNeRp-nFYwha-cPfnQ5-odyR5t-roCJtM-pLpPTc-d3dknb-98h4hb-bUAZv8-eapSfS-hKVoUG-iKmjBG-cbYeYU-pzW58P-iNpH9k-cb8LYQ-rhwFbz-nE3N2P-hKUZhk-dyR2S9-eSgcRg-hTZDmD-cbXSau-ov1BHP-dqgxB6-7GLbNG-hKUYMH-e7JueS-cbXSeU-aMSetv-hKW5R2-nev3ch-bUx8Q2/">Hubble’s High-Definition Panoramic View of the Andromeda Galaxy</a> by NASA Goddard Space Flight Center under <a href="https://creativecommons.org/licenses/by/2.0/">CC</a>

What’s Wrong with Group Policy

Over the years I have worked with Group Policy in many different ways. My experience ranges from helping an enterprise client establish a brand new set of policies for physical PCs and VDI machines to authoring ADM/ADMX/ADML files. Last year I presented and wrote a very detailed analysis of the impact of Group Policy on […]

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VHDX size in Hyper-V Manager

Compacting Hyper-V VHDX Files of Ubuntu Linux VMs

Note: if your guest OS supports the trim command you can use the faster method described in this article. If you configured your Hyper-V virtual machines with dynamically expanding virtual disks you will find that the VHDX files backing the virtual disks always grow in size, they never shrink. Eventually this becomes a problem either […]

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Splunk - open in search-900

Splunk Accelerated Data Models – Part 3

This article is based on my Splunk .conf 2015 session and is the second in a mini-series on Splunk data model acceleration. Make sure to read parts 1 and 2 first. Searching Accelerated Data Models Which Searches are Accelerated? The high-performance analytics store (HPAS) is used only with Pivot (UI and the pivot command) and […]

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Splunk - Checking the data model acceleration status

Splunk Accelerated Data Models – Part 2

This article is based on my Splunk .conf 2015 session and is the second in a mini-series on Splunk data model acceleration. Make sure to read part 1 first. Under the Hood HPAS Population The high-performance analytics store (HPAS) is populated by scheduled searches that run every 5 minutes. The HPAS spans a user-defined time […]

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Splunk data model acceleration

Splunk Accelerated Data Models – Part 1

This article is based on my Splunk .conf 2015 session and is the first in a mini-series on Splunk data model acceleration. Why Accelerate? Have you ever seen this? Splunk is great and very fast with needle in a haystack searches, e.g. find a specific keyword in millions of events. It is not so fast […]

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Citrix Synergy 2016 Call for Topics: Get Rid of the Video Requirement (Open Letter)

It smacks of lazy reviewers looking for eye-candy. Simon Crosby, former Citrix CTO Citrix Synergy Team, I am writing to you as a guy who has presented many times at Synergy. This year alone I had three sessions, one in cooperation with my community peers Aaron Parker and Shawn Bass, the other two on my […]

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uberAgent- XenApp 7.6. slow logon gap

Citrix XenApp 7.6 Logon Slow – Long Black Screen Phase

Update 2015-04-28: Citrix provides the limited release hotfix ICATS760WX64009 that fixes this issue. More information below. During the research for my session about the XenApp 7.6 logon process, to be presented at Citrix Synergy and BriForum London, I noticed that the logon to my XenApp 7.6 lab server was taking a bit long. Longer, in […]

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Timerange-pan-and-zoom

What’s New in uberAgent 3.0

One of the (many) great things about Splunk is that data, once indexed, is not being tampered with. Of course you can choose for how long you want to retain your data, but Splunk won’t go and average multiple older events into one, because that would flatten peaks and remove potentially important detail. This means […]

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<a href="https://www.flickr.com/photos/puuikibeach/9074797310/">Pillar of Darkness Expedition: 1913</a> by <a href="https://www.flickr.com/photos/puuikibeach/">davidd</a> under <a href="https://creativecommons.org/licenses/by/2.0/">CC</a>

Splunk Scripted Input Secrets

Splunk’s Universal Forward has the neat capability of executing arbitrary scripts while capturing their output and sending that to Splunk. This feature allows you to turn any executable, batch file or PowerShell script into a Splunk data source, making the data collection options basically limitless. This post explains a few tricks that are difficult to […]

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