Cisco ASA5500 – L2TP over IPSEC VPN
KB ID 0000571 Problem When Cisco released version 7 of the operating system for PIX/ASA they dropped support for the firewall acting as a PPTP VPN device. Note: If you want to use PPTP you can still terminate PPTP VPNs on a Windows server, if you enable PPTP and GRE Passthrough on the ASA. But if you want to use the native Windows VPN client you can still use L2TP over IPSEC. I had a look around the net to work out how to do this and...
SMB1 Is Dead? (Unfortunately Not Yet)
KB ID 0001461 Problem I recently did a migration for an engineering company, about a week later I got an email from them to say, “We have a new Windows 10 PC, and it can’t connect to the ‘N’ Drive?” I asked them to send me a screenshot, the error was; You can’t connect to the file share because it’s not secure. This share requires the obsolete SMB1 protocol, which is unsafe and could expose...
Windows RDP: ‘An authentication error has occurred’
KB ID 0001433 Problem When attempting to RDP to a remote machine; Â 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; Â 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...
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} + ~~~~~~~~~~~~~~~~~~ +...
Convert MBR Partitioned Drives to GPT
KB ID 0001407 Problem I got asked if I’d ever had to do this today, I vaguely remember having this problem in the past, but I can’t remember how I solved it. You set the ‘Partition Table Type‘ on a  disk in Windows, when the drive is first initialised, like so; And the default is MBR, so that usually gets ticked, the problem is MBR only supports disks up to 2TB in size. Now if it’s just a new disk, with...
Windows ‘Always On’ VPN Part 2 (NPS, RAS, and Clients)
KB ID 0001403 Problem Back in Part One, we setup the AD (Groups,) and the Certificate services that will knit everything together. Now we need to configure an NPS server that acts as a RADIUS server for our remote clients, And a RAS Server that our remote clients will connect to. Step1: Network Setup Microsoft have an alarming habit of telling you to connect DMZ assets to the LAN. In their defence I’ve seen some documentation...