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Author Archives: Bjorn Houben

PowerShell – Get the percentage of physical and virtual servers from your VMware environment

With the current focus on Corporate Social Responsibility (CSR) including Green IT, it might be important to know what percentage of servers has been virtualized.

This script I made will use PowerCLI to get the percentage of physical and virtual servers from your VMware environment for each Virtual Center server. You can specify multiple Virtual Center servers if desired.

 

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Free exam – 74-324 Administering Office 365 for Small Businesses

Microsoft is offering free exam vouchers for 74-324 Administering Office 365 for Small Businesses:
http://blogs.msdn.com/b/mssmallbiz/archive/2013/01/15/we-re-giving-away-2-000-free-administering-office-365-for-small-businesses-exam-74-324-vouchers-here-s-how-to-get-yours.aspx

The supply is limited, so don’t wait too long.

Also be sure to take a look at : Jump start videos for the new exam 74-324 Administering Office 365 for Small Businesses.

[edit 25-01]

Another code can be found here: http://www.digitalwpc.com/GetInvolved/MSPartnerPerspectives/TrainingSpotlight/Pages/Training-Spotlight-Small-Business-Competency-Announcements.aspx?mtag=mpntraining_tw_SBCompAnnouncements#fbid=gbfFqtdRaxn

[edit 25-01]

 
 

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Windows 8 – Windows 8 Upgrade Offer (15 euros) and free Windows Media Center offer ending 31st of January

As some of you might know, at the 31st of January some special Windows 8 related offers are ending:

For more information, including how to perform a clean install when you’ve bough the upgrade, please check my previous post.

 
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Posted by on January 16, 2013 in Microsoft, Windows 8

 

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Security – Java releases update for major Java vulnerability

Last sunday I warned about a major vulnerability in Java.

It wasn’t expected that Java would come have an update available this quickly, but it is good that they did. So be sure to update to Java 7 Update 11 : http://java.com

 

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Free training – Microsoft Virtual Academy (MVA) hosting 3 virtualization related Jump Starts

Microsoft Virtual Academy (MVA) is hosting 3 virtualization related Jump Starts in January and February:

  1. Introduction to Hyper-V Jump Start (January 24th, 2013)
  2. Microsoft Virtualization for VMware Professionals Jump Start (January 30th, 2013)
  3. Microsoft Tools for VMware Migration and Integration (Late February)

I’ve attended a couple of Jump Starts including those of Office 365, Windows 8 and Windows Server 2012 already and I think it’s a great way to quickly get up-to-date about a subject. Also there’s a great team of people working behind the scenes to answer questions and provide more detailed resources. Other attendees often also share their experiences and provide valuable insights.

The links above provide include a course outline and a link to register for the Jump Start.

I hope to see you there.

 

 
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Posted by on January 14, 2013 in ICT, Learning, Microsoft, Windows, Windows 2012

 

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Security – Major Java vulnerability, don’t become a victim

[EDIT 14-01-2013]

Oracle release Java 7 Update 11 to fix this security issue. Be sure to update: http://java.com/

[EDIT]

Normally when I read about security vulnerabilities, I don’t really get a sense of urgency.

With the current Java vulnerability however, I do feel like people have to act quick because there are so many respected companies and even countries actively taking action:

Apparently this vulnerability is actively being exploited already and Oracle hasn’t released a Java fix yet. You might want to consider a combination of the options below:

Personally I like the way FireFox is handling the issue because it blocks by default, but allows users to easily override this behavior for specific sites. Also I’m getting quite fed up with all these Java security vulnerabilities lately 😦

I’d like to know what you’ll be doing. Have you or are you going to disable Java ? Which methods will you use ? Why ?

 

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Home LAB – Virtualization and how to enable nested ESXi and other hypervisors in VMware vSphere 5.1

As a passionate ICT person, I work with multiple virtualization products including Microsoft Hyper-V and VMware vSphere.

At home I’m running Server 2012 with Hyper-V in my home lab and even though it works perfectly, I miss the option to be able to run multiple other hypervisors beneath it like by example multiple Hyper-V, VMware ESXi or Citrix XenServer instances.

With VMware products like VMware Fusion, VMware Workstation you can enable this with only a couple of minor adjustments as described in these great articles:

For me personally, I’ll stay with my Hyper-V based home server and my Windows 8 Client with Client Hyper-V installed. For testing purposes however, I’ll have to use VMware Workstation 9 on my Windows 8 machine.  (even though I have Client Hyper-V installed). This way I can still run other hypervisors when needed.

I still hope though that Microsoft will add a similar feature to Hyper-V in the future.

 

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PowerShell – Slipstream Office 2003 Updates

In yesterday’s post I described how you could extract Office 2003 updates. When they are extracted however, they still need to be slipstreamed into the package. I also created this script to automate the slipstreaming.

Basically for each extracted patch (.msp) file, it runs msiexec with the correct parameters. So if you have other msi packages that need multiple patch (.msp) files applied to it, you could use this script as a foundation as well.

 

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PowerShell – Extract Office 2003 Updates

Not so long ago I had to create a new Office 2003 Administrative Installation Point.

There were 2 choices:

  1. Use the default ISO and have WSUS handle patching after each install.
  2. Slipstream all available patches in the Office 2003 Administrative Installation Point.

Ofcourse option 2 is the best choice, because then the package will be the most secure from the moment the software is deployed. Also it saves bandwidth and time.

To slipstream updates into Office 2003, there are basically 4 steps:

  1. Extract the original Office 2003 files.
  2. Download the updates you want to slipstream.
  3. Extract the updates you want to slipstream.
  4. Slipstream the updates into the extracted Office 2003 files.

You can imagine that the older the source files are, the more updates there are to be slipstreamed. So it is best to use an ISO/CD of Office 2003 with the latest Service Pack.

Still if you have the latest Service Pack, you need to slipstream more than 20 updates. I personally don’t like these kind of manual tasks, so I created this script to do the extraction of the updates for me.

Ofcourse this script can be used to extract other kinds of updates as well..

 

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PowerShell – Determine which Active Directory objects are protected from accidental deletion

In yesterday’s post I showed some commands to protect all or specific Active Directory objects from accidental deletion.

In some situations (by example preparing for a change) you might want to know which objects are protected from accidental deletion and which are not. Also when multiple people make changes in an Active Directory it might prove difficult to keep track of the changes.

To determine the protection status of AD objects, I use a script that checks the ACL of the AD Object. When Everyone is explicitly Denied access, it is protected from accidental deletion.

 

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