New WIndows Update Client Patch KB3050265 June 2015 Can save you from valuable memory issues on Client Computers & Servers

18 06 2015

This patch solves a very big issue where a scan for updates causes svchost.exe with wuauserv service take a lot of machine memory in the form of private working set,

Without this patch I observed on a windows 7 client the memory usage of svchost go from 250 (megs) to 1.3 (gigs) and when it’s done scanning the memory wasn’t freed in it’s entirety.

If you calculate the frequency of scans for updates and the amount of servers / workstation / VMs all together you will find that this patch can save a whole lot of precious resources.

Check it out here:

https://support.microsoft.com/en-us/kb/3050265

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Monitor-Backlog and take actions with custom conditions

3 04 2014

Hi Again,
I needed a quick way to place a folder where files from clients in my environment are being constantly sent and imported elsewhere under closer watch for backlogging and performance troubleshooting, the responsiveness of a business process was reliant on how fast the files from the clients gets processed,
I wanted the following abilities:
– it had to be temporary as I just wanted to get a rough idea on the times of day I get bottlenecks if any
– I didn’t want to interrupt / burden the server with too frequent queries
– I wanted to do something that I can use later / recycle in some form for other uses
– I had to get an idea visually of how bad things are meaning i needed couple of condition (severities)
Read the rest of this entry »





How to disable Kerberos to test NTLM

24 07 2012

So today I encountered an issue where i wanted to mimic the behavior of a server 2003 in an un-trusted forest to which i had no physical access to, The issue was that I was trying to take advantage of the NTLM Passthrough  authentication like described here:

http://support.microsoft.com/kb/102716

And it was successful for some of the authentication requests from a winPE 3 based task sequence, At some point during the task sequence I received what looked like an innocent error in from the task sequence, something about that the task sequence couldn’t find the WIM image during the “Apply OS Image” step, when i looked in the server 2003 BDP event viewer i saw an event for “Unknown User Name or Bad Password” and i know the password is correct because that same task sequence run daily in the organization i work in,

To cut a long story short (i’ll post that adventure on a later post) Read the rest of this entry »





Using Aladdin eToken from inside a virtual machine (VirtualBox etc.)

19 06 2010

Hey,

I’m a real fan of VirtualBox and i use version 3.2.4 on my windows 7 ultimate 64bit,

Today i tried using a usb etoken from Aladdin on my windows XP pro guest and to my surprise it didn’t work,

i looked all over the documentation and tried to filter my usb token, i tried what not and it refused to work,

when performing the command “VBoxManage list usbhost”  i could see all my other usb devices like my usb printer, usb drive etc. and in the filter screen i was offered to filter everything usb But not the etoken,

then it hit me! Read the rest of this entry »