Disable web administration on OPT

[vedro]

Hello,

I am new to this forum and new with pfSense so I have a question that I need help with:

I have installed pfSense on a PC with 3 NICs: WAN, LAN and OPT. LAN and OT have different IP range.
I want to disable web administration through OPT but not through LAN. How can I do that?

Thanks in advance,

Vedro

EDIT: I found the solution, found it on the forum.