In a previous blog post I’ve already shown this script that use PowerCLI to get the percentage of physical and virtual servers from your VMware environment for each Virtual Center server. This script however only took into account ESX hosts and VM’s in each Virtual Center server separately.
This means that:
- The UCS blades weren’t taken into account as physical servers.
- No percentage was being calculated for each physical location.
This new script automates determining for each location the number of physical and virtual servers in VMware vSphere and Cisco UCS.
PS: You can get more detailed information from the script, but it has been disabled using comments by default.
Tags: automation, Cisco, Cisco UCS, Cisco Unified Communication System, corporate social responsibility, CSR, Green IT, Microsoft, PowerCLI, Powershell, Script, Scripting, UCS, virtual center, virtual infrastructure, virtualcenter, virtualisation, virtualization, VMware, VMware vSphere, vSphere, Windows
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.
Tags: automation, corporate social responsibility, CSR, Green IT, Microsoft, PowerCLI, Powershell, Script, Scripting, virtual center, virtual infrastructure, virtualcenter, virtualisation, virtualization, VMware, VMware vSphere, vSphere, Windows
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
Tags: Apple, chrome, Cisco, firefox, Google, google chrome, IE, Internet Explorer, Intrusion Prevention System, IPS, IPS signature, Java, Microsoft, Microsoft IE, Microsoft Internet Explorer, Mozilla, mozilla firefox, MS IE, Oracle, OS X, plug-in, plug-ins, plugin, plugins, security, security issue, Signature, US-CERT, vulnerability, Windows, Windows 7, Windows 8, Windows Server 2003, Windows Server 2008, Windows Server 2008R2, Windows Server 2012, Windows Vista, Windows XP
Microsoft Virtual Academy (MVA) is hosting 3 virtualization related Jump Starts in January and February:
- Introduction to Hyper-V Jump Start (January 24th, 2013)
- Microsoft Virtualization for VMware Professionals Jump Start (January 30th, 2013)
- 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.
Tags: Cloud, Free, high availability, Hyper-V, hypervisor, ICT, Introduction to Hyper-V Jump Start, jump start, Learning, Microsoft Virtual Academy, Microsoft Virtualization for VMware Professionals Jump Start, MVA, networking, Private Cloud, Public Cloud, storage, System Center, System Center 2012, virtualization, VMware, VMware vSphere, VMware vSphere 5.1, Windows, Windows Server 2012
[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 ?
Tags: Apple, chrome, Cisco, firefox, Google, google chrome, IE, Internet Explorer, Intrusion Prevention System, IPS, IPS signature, Java, Microsoft, Microsoft IE, Microsoft Internet Explorer, Mozilla, mozilla firefox, MS IE, Oracle, OS X, plug-in, plug-ins, plugin, plugins, security, security issue, Signature, US-CERT, vulnerability, Windows, Windows 7, Windows 8, Windows Server 2003, Windows Server 2008, Windows Server 2008R2, Windows Server 2012, Windows Vista, Windows XP
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.
Tags: Citrix, Citrix XenServer, Client Hyper-V, ESXi, home lab, Hyper-V, Hyper-V 3.0, hypervisor, Microsoft, multiple hypervisors, nested esxi, nested hypervisor, Server 2012, test lab, virtualization, VMware, VMware ESXi, VMware ESXi 5.1, VMware Fusion, VMware vSphere, VMware vSphere 5.1, VMware Workstation, VMware Workstation 9, Windows, Windows 2012 Server, Windows 8, Windows Server 2012, workstation, XenServer
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.
Tags: Active Directory, AD, automation, Microsoft, Powershell, protect from accidental deletion, protected from accidental deletion, Script, Scripting, Windows, Windows Server, Windows Server 2008, Windows Server 2012
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
Tags: accidental deletion, Active Directory, AD, automation, Microsoft, Powershell, protect from accidental deletion, protection from accidental deletion, Script, Scripting, Windows, Windows Server, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012
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