Automating with PowerShell: Deploying Unifi DHCP Options

Kelvin Tegelaar | 12 Apr, 2021 | 1 Mins Read

Hey all! a bit shorter one today as I am swamped at the office.

Last week one of my friends was working on deploying DHCP options to automatically adopt devices inside networks managed by a Windows DHCP server. The process is pretty straight forward – Add a vendor class, add the option, and set it to the correct IP address. Unfortunately, that of course means a lot of clicking in the DHCP console on each Windows Server he manages.

So, he asked me if I could simplify this for him by scripting it, so this short snippet can be used to set the DHCP options for all scopes, on a Windows Server to automatically adopt Unifi devices.

$ControllerIP = ('10.8.8.8').split('.') | ForEach-Object { '{0:x}' -f $_ }
Add-DhcpServerv4Class -Name "ubnt" -Type Vendor -Data "ubnt"
Add-DhcpServerv4OptionDefinition -Name "UniFiController" -OptionId 1 -Type "BinaryData" -VendorClass "ubnt" -Description "IP as Hex Object"
Get-DhcpServerv4Scope | Set-DhcpServerv4OptionValue -VendorClass 'ubnt' -OptionId 001 -Value $ControllerIP

all that you need to change is the IP of your controller, and that’s all folks! like I said; short but sweet.

As always, Happy PowerShelling!

CyberDrain CTF returns! (and so do I!)

It’s been since september that I actually picked up a digital pen equivalent and wrote anything down. This was due to me being busy with life but also my side projects like CIPP. I’m trying to get back into the game of scripting and blogging about these scripts. There’s still so much to automate and so little time, right? ;)

Intro

This is a monitoring script requested via Reddit, One of the reddit r/msp users wondered how they can monitor Acronis a little bit easier. I jumped on this because it happened pretty much at the same time that I was asked to speak at the Acronis CyberSummit so it kinda made sense to script this so I have something to demonstrate at my session there.

Intro

Wow! It’s been a while since I’ve blogged. I’ve just been so swamped with CIPP that I’ve just let the blogging go entirely. It’s a shame because I think out of all my hobbies it’s one I enjoy the most. It’s always nice helping others achieve their scripting target. I even got a couple of LinkedIn questions asking if I was done with blogging but I’m not. Writing always gives me some more piece of mind so I’ll try to catch up again. I know I’ve said that before but this time I’ll follow through. I’m sitting down right now and scheduling the release of 5 blogs in one go. No more whining and no more waiting.