FreeNAS 11.2-U6 Web interface; bad cert /TLS error ..

[Frankenstein]

Help... I can't find the solution to replace the bad SSL certificate I created within FreeNAS 11.2-U6 on an Asrock D1521D4I.
I've logged into it a few times and set up the system, a pool with 2 WD Red 4TB drives mirrored, email alerts that work, and got my NFS share to work.
Backed up my files into that... probably ~24 hours after cert creation I can't get past the TLS error:
>wget -v https://192.168.223.25/login
>Connecting to 192.168.223.25:443... connected.
>GnuTLS: The TLS connection was non-properly terminated

In Firefox 66/Linux I get:
>An error occurred during a connection to 192.168.223.25. PR_END_OF_FILE_ERROR
I can connect into the IPMI with ssl, that was a pre-existing cert, and to the console.
Questions:
Is there a way to remove or replace that bad cert I made via the root shell?
Is there any way to disable ssl on that interface so I can get back in? (edit a config file?)
Can I restore to a snapshot (prior to my cert generation) without losing my share and its data, then create a good cert?
Update to later version of FreeNAS... would I still have the bad cert issue? Would I lose the data in my share?

And THANK YOU jgreco, for the resource and discussion on 'Multiple network interfaces on a single subnet'!
Timely indeed, as I... need to fix that too..

 

[dlavigne]

Were you able to resolve this? If not, does https://www.ixsystems.com/blog/library/recover-invalid-certificate/ help?

 

[Frankenstein]

>>Were you able to resolve this?
Not on my own, but with your help it worked perfectly!
The library is a very good thing! I knew there had to be a sensible solution...
Thank you dlavigne!!

I have a lot to learn and this community is a great place for learning. There's a lot of advanced talent here; which is a huge help.
I primarily run Linux systems using old surplus boxes; Debian being my favorite. Firewall with pfsense...
FreeNAS & ZSF are new to me and the people here have made me realize some of my mistakes. My network is a little 'messy', so that's first on my list to clean up. Second is learning about ZFS, and FreeNAS specifically.

 

[thepodger]

Were you able to resolve this? If not, does https://www.ixsystems.com/blog/library/recover-invalid-certificate/ help?

Updated Archive.org_Link to the article dlavigne posted. (scraped in 2020)