Entries by Ingmar Verheij

Configuring proxy server on a Synology NAS

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A proxy server can be useful to reduce the number of requests and data when browsing over the internet. Especially when files are downloaded repeatedly, like opening facebook multiple times a day or downloading the same file frequently (updating multiple vm’s). Since I have a Synology NAS I wanted to experiment with a squid proxy […]

How to disable the DHCP server on an Apple Airport

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Author: Ingmar Verheij The Apple Airport (extreme) is “in my humble opinion” a very good access point for home and small office use. As with other Apple products it’s really a dummy-proof products that’s easy to setup and use. But for the more adventurous user the it might feel as if you’re force to do […]

(Non)paged memory pool limit, it might be smaller then you expect

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Author: Ingmar Verheij A Windows operating systems divides memory in two spaces: user-mode and kernel-mode. By default 2GB is assigned to kernel mode (1GB if the /3GB switch is used, which is not the case). The user-mode memory is for regular application usage, the kernel-mode memory is for “special” purposes. Part of the kernel memory […]

WinDbg: Couldn’t load mismatched pdb for ntkrpamp.exe

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Author: Ingmar Verheij When using a  debugging tool (like WinDbg) the debugging tool needs symbol files to display and interpret data. The symbol files (.pdb – program database) are provided by the software vendor, it is not part of the debugging software. If your system is connected to the internet providing the Microsoft symbol files […]

Netscaler X – Connection limit to CFE exceeded

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Author: Ingmar Verheij When you try to connect to the admin console (dashboard) of a NetScaler X you get the error “Connection limit to CFE exceeded”. If you login via SSH is seems the credentials are invalid. Users with a different username are able to login. In this example vtsha_admin is unable to login, nsroot […]

Who needs PXE for Citrix Provisioning Services?

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Author: Ingmar Verheij With Citrix Provisioning Services (PVS) the content of a disk can be streamed to a (virtual / physical) machine via the network. A (virtual) machine that boots needs a bootstrap to locate a PVS server (that has a vDisk available) and the ability to stream the disk to the machine. The bootstrap, […]

Manage Citrix NetScaler X with IE9

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Author: Ingmar Verheij After an upgrade of a NetScaler from 9.3 to NetScaler X (NetScaler 10) I wasn’t able to manage it from Internet Explorer 9 (IE9).  All you would see is a grey bar on top and a white screen I’’ve only been able to test this with a non-default (nsroot) username . This […]

The Citrix XML server explained and demystified

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The Citrix XML server is a component of Citrix XenApp and XenDesktop that’s used to enumerates available resources and provide secure tickets for users that to use the WebInterface or CloudGateway. In this article I’ll explain what the services the XML service provide, how it does it job and all you need to know about […]

Configure hostname via DHCP

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Author : Ingmar Verheij A system can be identified on a network with a MAC address, IP address or its hostname. The hostname is the most readable form for humans, especially because you have the ability to change the hostname (unlike a MAC address and only partially for an IP address). Giving the device a […]

RES WM11: Workspace Composer hangs at “Preparing applications”

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Author: Ingmar Verheij Users who logon with RES Workspace Manager 2011 experienced a long delay ( > 1minute) and mentioned that the Workspace composer hangs at “Preparing Applications”. After the delay the desktop was shown as expected. Short version The delay was caused by a check  for the existence of executables (forced by the “Hide […]