Running Tailscare

Hi everyone - just getting started with OMV. Forums and guides have been great; I tried looking carefully in both before posting my question.

I'm sure many of you will laugh at the simplicity of my question, but I am new to all this. I'd never heard of OMV before 2 weeks ago, and barely heard of Docker or TailScale.

I have OMV up and running, and several containers running in compose. I just got TailScale up. How do I find the web address to authenticate Tailscale? I can't running several Tailscale commands from SSH, but get "-bash: tailscale: command not found"

Thank you in advance, and thank you for all the great information.

I think I figured out my very basic issue; had to. navigate the container folder then run the exec command.