Config on a Synology install using the docker GUI

General
1

Hi all,
I've installed NodeRed on a Synology NAS using the Docker GUI application, I'm up and running and imported my current flow file and spent an age adding in all the missing nodes.
Once thing I don't know how to do is set a security password?

I've move over from a Pi3 running HASSIO where you set a password in the HASSIO integration manager screen, but I can't work out how to do it on the Synology...?

I know it's not good to have it exposed without some security so really keen to get this sorted.

I do have SSH access to the NAS if that's where I do it!

Thanks in advance