Had to Restore Configuration on New Install, Truenas_Default SSL Certificate Now Unusuable (No Private Key)

TrueNAS General
1

So, I admit up front that I didn’t have the key saved in my config download.

Is there a step-by-step guide to actually fixing this?
I know I can create a CA on TrueNAS Scale itself, and then use that to sign a certificate, but I’d really like a step by step guide for doing that. There are ton of options for the CA and Cert that I don’t understand, and I’ve already had to restore my settings from backup again because I locked myself out the last time I tried to fix this.

EDIT: Ideally, I’d like to reinstall the actual default certificate. However, I can’t find any sort of documentation on doing that.

Any help would be greatly appreciated.

2

Followup question: What are the chances that the upcoming Electric Eel 24.10 release will include a new default SSL certificate?

That would fix this.