Archive for April, 2012

Script to join ESXi 5 hosts to Active Directory for Directory Services Authentication

I’m getting ready to upgrade a ton of our ESXi hosts to 5 and wanted a quick way to join all of them to AD after. I could probably do a fresh install and incorporate this into my ESXi Config Script, that’s a consideration, but for the time being, a script that targets clusters, folders, vDCs, etc, will work. The script can also target individual ESXi hosts, they do not have to be joined to vCenter.
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Some thoughts on the Cisco Cius Android tablet – User Review

Written April 19th, 2012 by
Categories: End User Computing
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I’ve been using a Cisco Cius 7″ Android tablet for several months now and am starting to have mixed emotions about it. Initially, I loved it, especially since it now has 2.2.2 (Froyo) and Google’s updated Play Store. It also allows side-loading of apps, so I have the Amazon Appstore, plus Cisco’s AppHQ. Overall, it’s fairly snappy, but is Atom-based (at 1.6GHz), so custom ROMs are pretty much non-existent.
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Initial thoughts of the Dell XPS 13 Ultrabook, unofficial review

Written April 13th, 2012 by
Categories: End User Computing
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I received a demo of the Ultrabook and I have to say I’m pleased out of the box.  It’s obvious it took some cues from the ‘other’ laptop, and it’s nice.  First thing I noticed is how light and thin it is.  It’s probably as thick as my Viewsonic G Tablet, and boots faster.  I timed it, from the time I pressed the power button, until I had a mouse pointer without the ‘wait’ signal, was about 20 seconds.  The windows boot logo never even finished!  Craziness.
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Where will virtualization be in 12, 18, and 24 months from now? Please respond with your thoughts…

Written April 13th, 2012 by
Categories: Virtualization
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Everyone has ideas of where virtualization is heading, what it will look like, and how everything’s moving to cloud computing.  I’ve pretty much built our internal cloud, and it’s somewhat limited to PaaS, with a move to include SaaS.  I’m curious to see what everyone thinks about PaaS, IaaS, SaaS, and virtualization overall over the next two years.

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Unable to edit or delete wireless profiles or networks in Windows 8, use netsh wlan to fix!

Written April 9th, 2012 by
Categories: Uncategorized
11 comments

**UPDATE Dec 14, 2012**

As pointed out by Carlos below, the easy way is to simply delete the wireless profile.  Run this from an elevated command prompt:netsh wlan delete profile "SSID-name"

**End Update**

I was playing with my wifi AP and turned SSID broadcast off. Of course, several wireless machines on my network wouldn’t connect because they weren’t configured to connect if the SSID wasn’t broadcast. They all were an easy fix, except for my Windows 8 test laptop. Read the rest of this entry »

Creating your own Root CA with OpenSSL on Windows, and signing vCenter or SRM certs

In This Post, I created certificates for my SRM & vCenter servers where I used a separate signing authority. What if you don’t have one, but still want to use your own certs? You create your own Root Certificate Authority (root CA) via OpenSSL. Here’s how…
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Creating Certificates for VMware SRM or vCenter using openSSL made easy, with Video!

Written April 4th, 2012 by
Categories: Virtualization
10 comments

Some of the documentation around creating certificates for vCenter or SRM seems to be lacking, so I documented a few steps for each and outlined the differences, also created a video :)

This can be done from any machine, as long as openssl is installed. If you’re creating/requesting multiple certs, create folders for each request and work from within there so you don’t mix them up. I use d:\cert\vcenter and d:\cert\srm. I added “D:\OpenSSL-Win32\bin\” to may path variable so it’ll work in any folder I’m in.

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How to determine RAM speeds on Dell’s new 12G servers with Intel Sandy Bridge Xeon E5-2600 Procs

I’m sure many of you have dealt with trying to figure out how much RAM you can shove in a box, say an R720, and still keep RAM speeds up. I actually had some docs from Dell, figures, diagrams, graphs, and a few charts. Even then, it was difficult.

Enter the “Dell 12G Memory Solution Tool”. It is a website that allows you to test RAM & CPU configurations to get optimal speeds. For instance, you can select the R720, 2 CPUs, and that you want 256GB of RAM. That’s a nicely sized box for virtualization. The tool tells me I can get 16x 16GB of 2R4 DIMMS at 1333MHz or 1600MHz. Of course, I’m going to go with the 1600MHz! What if I want to bump the RAM? I checked out 384GB & 512GB to see how they stack up; 384GB gives me the option for 24 16GB DIMMS, but drops my speed to 1066; and 512GB has two options, either 800MHz, or 1333MHz (yes please!).

It also shows you some quick price & power consumption rankings on a 1-5 scale.

Pretty awesome, imo! Here’s the link: http://poweredgecpumemory.com/

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