[winswitch] Q: how to attach to remote Xpra session through SSH with password auth.?

[Dmitry Smirnov]

Dear Antoine,

On my computers I use public key authentication which makes attaching to Xpra 
sessions very easy.
Yesterday I was trying to connect to my session from non-trusted computer 
where for obvious reasons I had to use password authentication.
Unfortunately I couldn't figure out how to attach to remote session over SSH 
if public key authentication is unavailable. How it is possible to attach with 
SSH password authentication?

IMHO answer to this would naturally belong to FAQ.

Please advise.

Thank you.

Regards,
Dmitry.