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showing posts of January 2017
 
by lunarg on January 31st 2017, at 15:55
When using credentials in Powershell, you usually use Get-Credential, which essentially creates PSCredential objects. Creating such an object prompts the user to enter a username and password, which is not really usable in unattended scripts. There's a method where you can specify an unencrypted password but this is not secure. Fortunately, there's also a method where you can store the encrypted password in a file and use it to set the password.

To create a password file, run this from a Powershell window:

Read-Host -AsSecureString | ConvertFrom-SecureString | Out-File path-to-file

You will not get a real prompt: simply type the password will show * in the console. Type the password twice  ...
by lunarg on January 31st 2017, at 08:55
When installing Sonicwall NetExtender 8.0.241 or later on Windows 7, you may get the following error:

"Damaged version of net extender detected on your system. Please re download net extender"

The reason for this error is you probably are missing Windows Update KB3033929, which adds SHA256 support into Windows. Because SHA256 certificates are now the new norm, the latest Sonicwall certificates also use this hashing algorithm. Without the update, Windows 7 and Server 2008R2 do not have support for SHA256.

You can resolve the issue by installing the update, then reinstalling NetExtender:

Download and install KB3033929.

Uninstall Sonicwall NetExtender (via Control Panel).

Delete  ...
by lunarg on January 30th 2017, at 11:33
Since Mac OSX Lion (10.7), it is possible to open a Terminal from a Finder window, similar to "Open Command Prompt" in Windows. The feature is available as a service and is by default disabled, but when enabled, it allows you to click a folder and then perform "Open Terminal", which will launch a terminal window at the specified folder.

To enable the "Open Terminal" service:

From Finder, click the Finder application menu, then under the Services menu, click Services Preferences.Alternatively, open System Preferences, click Keyboard, then Shortcuts and in the left pane, click Services.

In the right pane, scroll down to Files and Folders, and look for New Termi  ...
by lunarg on January 23rd 2017, at 11:03
In a hybrid Exchange environment, you may get an error when attempting to log in to Office 365 when performing a management task involving Office 365. When clicking the "Sign in to Office 365" link, the following error is displayed:

critical error
The web page isn't loading correctly. Please reload the page by refreshing your browser.

Technical information: Unable to set the property "mkt" of a null reference or undefined

Not really a solution, but you can work around the issue by performing these steps:

In EAC, navigate to Hybrid.

Click Modify.

Click Sign in to Office 365, type in your Office 365 username and password.

Once logged in, click on the Enterprise tab and try per  ...
by lunarg on January 23rd 2017, at 10:17

If you have the Exchange Management Tools installed, you can easily import the Exchange module into a standard Powershell by running the Add-PSSnapin cmdlet.

Depending on the Exchange version, the module to add is slightly different:

Exchange 2007Microsoft.Exchange.Management.PowerShell.Admin
Exchange 2010Microsoft.Exchange.Management.PowerShell.E2010
Exchange 2013Microsoft.Exchange.Management.PowerShell.SnapIn

If you're not sure about the version, you can also use wildcard characters:

Add-PSSnapin *Exchange*

If you don't want to install the management tools, you can also use PS remoting to remotely access the management shell from a standard Powershell.

by lunarg on January 23rd 2017, at 08:57
One of the most pertinent changes to Windows 10 is how updates are being installed. Unless your computer is using WSUS or some other corporate solution, you do not have the ability to select which updates to install and which not to install. This includes drivers and feature updates (such as the Anniversary Update). While it is usually recommended to install all updates, sometimes it is not wanted, e.g. because of system instability, or simply, because you don't want a particular update (e.g. Anniversary Update). To meet customer's demand, Microsoft has released a tool to reintroduce the "hide an update" function of older Windows versions.

The tool allows you to "hide" s  ...
by lunarg on January 19th 2017, at 16:49

With PowerCLI, you can generate all sorts of lists. To retrieve the configured and reported OS version of your VMs, try running this one-liner:

Get-VM | Sort | 
   Get-View -Property @("Name", "Config.GuestFullName", "Guest.GuestFullName", "Guest.IpAddress") | 
   Select -Property Name, 
       @{N="Configured OS";E={$_.Config.GuestFullName}},
       @{N="Running OS";E={$_.Guest.GuestFullName}},
       @{N="IP Address";E={@($_.Guest.IpAddress)}} | 
   Export-CSV -Delimiter ";" -Path "vms.csv"
by lunarg on January 19th 2017, at 14:49
ADMT stands for Active Directory Migration Tool and is used to migrate AD objects (such as users, groups, computers, etc.) from one AD forest or domain to another, supporting complex scenarios in the process.

Why Microsoft hides their most useful tools is a mystery though. So here are the download links. You will need to accept some EULAs and have a Microsoft Account if you wish to download it though.

Navigate to https://connect.microsoft.com/site1164/program8540.

If you have not done so, you will have to log on with a Microsoft Account and join the program and accept its EULA things.

Then, you will be able to click through to the download page and download ADMT version 3.2, and, if req  ...
by lunarg on January 10th 2017, at 14:42
If your ESX host has lost connection to the vCenter server, but you can still directly access the host's management, and can find nothing else wrong with the vCenter server or its network connection to the host, you may want to the free space on your ESX host.

Logs and other temporary files may have filled up one or more ramdisk partitions (e.g. when you don't have a persistent scratch partition, it gets mounted on /tmp). This can cause any of the following issues:

Connection loss between the ESX host and vCenter server;

Errors when attempting to reconnect or add an ESX host to a vCenter server;

Errors while attempting to activate or configure HA;

Other unexplainable errors...

You can   ...
by lunarg on January 10th 2017, at 14:38
If the scratch partition (/tmp) gets filled up, check for the presence of the file ql_ima.log. If it is present, you are bothered by a bug from an older version of the qla4xxx driver. Even if you use Update Manager, this driver does not get updated automatically. The solution is add the driver to Update Manager or download and install the update manually.

This procedure describes the manual installation of the update on your ESX host. There's no need to put the host in maintenance mode but you will have to reboot to use the new driver.

Download the driver (you need a VMware account):

VMware 5.5

VMware 6.0

Unpack the download and copy the file qla4xxx-634.55.28.0-offline_bundle-1682448.z  ...
by lunarg on January 9th 2017, at 16:33
A new Powershell module, called Azure AD v2 is available to manage Office365 from Powershell, and is now the preferred method for managing Office365 tenants from Powershell. Unlike the older MSOnline module, you need to download and install this version from the Powershell Gallery, for which there is no direct download link.

Windows 10 already has the PowershellGet module needed to download modules from Powershell Gallery, so all you need to do is run the following in an elevated Powershell:

Install-Module AzureAD

You may get a message about NuGet provider is required to continue. You can safely confirm this.

Everything pre-Windows 10 and starting from Windows 7 SP1 and 2008R2 SP1, you n  ...
 
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