For those who are unfamiliar with Desktop Virtualization, Train Signal is providing a free video series “Intro To Desktop Virtualization on YouTube.
Be sure to check out these websites and twitter accounts as well if you want to keep track of what Train Signal is doing:
http://www.trainsignal.com
@TrainSignal
@davidmdavis
What you have to keep in mind though, is that you’re already running a hypervisor when you have Client Hyper-V installed in Windows 8. Installing and running VMware Workstation might cause problems. So unfortunately you cannot run them at the same time. This is also true for other virtualization products like by example virtualbox.
As a workaround you can either uninstall or (temporarily) disable Hyper-V. When you want to switch between Hyper-V and VMware Workstation it is ofcourse best to just temporarily disable Hyper-V.
In this forum post, a couple of methods are described to (temporarily) disable Hyper-V. It includes creating a seperate boot menu entry to boot with Hyper-V disabled and modifying the setting either through registry or a command. All methods do require a reboot however.
PS:
Sometimes you want to be able to quickly create a GPO report for an Active Directory domain. And ofcourse you can do this manually using the GUI as well, but with a PowerShell script you can automate and schedule it.
So here’s my script that will automatically save a time stamped GPO report for the current domain.
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
[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 ?
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.
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.
In a previous blog post I explained how to enable the Active Directory Recycle Bin which allows you to restore deleted active directory object.
But even though it’s great to be able to restore objects, it is even better to prevent accidental deletion. What accidental deletion basically does, is modify the permissions on an AD object to Deny Everyone so you won’t be able to delete it by accident.
More information about protection from accidental deletion can be found in “Preventing Unwanted/Accidental deletions and Restore deleted objects in Active Directory” and “Windows Server 2008 Protection from Accidental Deletion“.
In Windows Server 2012 with all the new cmdlets, it has become much easier to enable protection from accidental deletion.
By example, you could use these commands:
#Get-ADobject class names
get-adobject -filter * | select objectclass | group objectclass
#Protect specific AD object classes from accidental deletion
get-adobject -filter * | where{($_.ObjectClass -eq “container”) -or ($_.ObjectClass -eq “organizationalunit”) -or ($_.ObjectClass -eq “user”) -or ($_.ObjectClass -eq “group”) -or ($_.ObjectClass -eq “computer”)} | Set-ADObject -ProtectedFromAccidentalDeletion $true
#Protect all AD organizational units from accidental deletion
Get-ADOrganizationalUnit -filter * | Set-ADOrganizationalUnit -ProtectedFromAccidentalDeletion $true
#Protect all AD objects from accidental deletion
Get-ADobject -filter * | Set-ADObject -ProtectedFromAccidentalDeletion $true
blog.bjornhouben.com 