Git: Clone a project over a http proxy


like subversion it is also possible to anonymously checkout the latest version of a project over a http proxy server.

Define the proxy server
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Windows: Backup with diskshadow.exe


Windows Server 2008 and alter version are shipped with a tool called diskshadow. This program can be used to create snapshots of disks and expose them as Folder or as DriveLetter means files are in a consistent state and you can save openfiles.

Some examples. Starting diskshadow. It accept a  parameter /l  for a logfile. And a Parameter /s for a (diskshadow) script file to execute. diskshadow has the same “look and feel” like diskpart 🙂  and start with a prompt:

Microsoft DiskShadow version 1.0
Copyright (C) 2013 Microsoft Corporation
On computer:  windev,  12.06.2014 20:28:33

First set diskshadow in defined state with reset

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VMware: PowerCli Scripts in native Powershell


when you want to execute your PowerCli script you have to start the “VMware vSphere PowerCLI” shell before. But, for example Schedule Tasks, it whould be nice that the script load the PowerCli environment itself. Then you simply have to start your script like this

%Systemroot%\System32\WindowsPowerShell\v1.0\powershell.exe -File YourPowerCliScript.ps1

To load the PowerCli script Environent in your powershell script add this lines at the top of your script.
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VMware vSphere: Create a linked clone with Powercli


linked clones have some advantages:

  • New virtual machines are rapidly deployed. The initial task is only to reference to a snapshot of an existing virtual machine. No virtual disk file(s) will be copied at this time.
  • They save disk space. Because only the space difference to the origin snapshot is allocated.

I found no option in the vSphere respective the Webclient to create one, but PowerCli provides this. Lets do it.
Connect to vCenter

Connect-VIServer vcenter.subdomain.domain.local

Define the virtual machine which is the origin of the linked clone, and the Snapshotname on which the linked clone based.


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Windows: Cannot bring up Cluster Networkname Resources


a customer has, accidentally, deleted multiple Active Directory Computer objects which correspond to Network Name Resources of a Windows Cluster 🙁 .

The cluster network name itself was also affected and no backup of the AD Database to restore the objects was available.

All solutions that I’ve found to get the cluster working again are based on the restore of the AD objects.

But there is also another way respective hack 🙂 . This works for me on a Windows 2008 R2 Cluster.
Typical error are:

  • Event ID 1207 is logged to the Eventlog: “Unable to get Computer Object using GUID” “There is no such object on the server.”
  • Or in the C:\Windows\Cluster\Reports\cluster.log file (exported with cluster.exe log g)
    Network Name <Clustername>: Unable to Logon. winError 1326

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