PDC Emulator: Cannot Sync Time From External NTP Server
Aug28

PDC Emulator: Cannot Sync Time From External NTP Server

KB ID 0001464 Problem I was involved in a question on Experts Exchange this week where the asker could not get their PDC to sync time from an external NTP server. He was seeing an Event ID 12 Error; Time Provider NtpClient: This machine is configured to use the domain hierarchy to determine its time source, but it is the PDC emulator for the domain at the root of the forest, so there is no machine above it in the domain hierarchy to...

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PowerShell: Finding Stale User and Computer Accounts
May15

PowerShell: Finding Stale User and Computer Accounts

KB ID 0001438 Problem I do this a lot, (usually prior to big migrations), most organisations have no mechanism for removing old users and computers from Active Directory, some don’t even disable the accounts. Find Users Who Have Never Logged On Use the following PowerShell Command; Get-ADUser -Filter { LastLogonDate -notlike "*" -and Enabled -eq $true } -Properties LastLogonDate | Select-Object @{ Name="Username";...

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Windows RDP: ‘An authentication error has occurred’
May10

Windows RDP: ‘An authentication error has occurred’

KB ID 0001433 Problem When attempting to RDP to a remote machine;   An authentication error has occurred. The function requested is not supported Remote computer: {name} This could be due to CredSSP encryption oracle remediation. Or you may just see;   An authentication error has occurred. The function requested is not supported Remote computer: {name} Solution This is happening after you have a applied a windows security update it...

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Remote Desktop Services: Balancing Sessions Hosts and Connection Brokers
Apr13

Remote Desktop Services: Balancing Sessions Hosts and Connection Brokers

KB ID 0001424 Problem I got an email from a colleague who was setting up an RDS farm, (2012 R2). He was having some problems and asked me; “If the Connection Broker brokers the connections to the Session Hosts, how do I RDP to the Session Broker?” This threw me completely, I usually jump on the console in VMware or use a third party remote management tool, I don’t tend to to RDP onto servers. I had fallen into the...

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Cisco WLC: EAP-TLS Secured Wireless with Certificate Services
Apr04

Cisco WLC: EAP-TLS Secured Wireless with Certificate Services

KB ID 0001420 Problem Ah certificates! If I had a pound for every time I’ve heard “I don’t like certificates”, I could retire! The following run through is broken down into the following parts; Setup the Cisco WLC (WLAN) Setup NAP (RADIUS). Setup Certificate Auto Enrolment. Setup Group Policy to Deliver the Wireless Settings. Note: If you are scared of certificates, sometimes it’s easier to setup password...

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PowerShell: Cannot Be Loaded Because Running Scripts is Disabled
Mar24

PowerShell: Cannot Be Loaded Because Running Scripts is Disabled

KB ID 0001417 Problem If you’ve arrived here, you are trying to run a script, and you cant; PS C:\Users\{User-name}> .\{script-name}.ps1 .\{script-name} : File C:\Users\{User-name}\{script-name} cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at http://go.microsoft.com/fwlink/?LinkID=135170. At line:1 char:1 + .\{script-name} + ~~~~~~~~~~~~~~~~~~ +...

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