1 ypd delegates tcp requests to other services analysing the content.
2 it makes you able binding more than one application to a virtual port.
10 configure ypd with following enviroment variables:
11 YPD_PORT=4443 - port to listen on
12 YPD_HOST=localhost - host to connect to
13 YPD_PORT_HTTPS=443 - port to connect https connections
14 YPD_PORT_SSH=22 - port to connect ssh connections
16 if you want other protocolls implemented, just get the source http://repo.or.cz/r/ypd.git and sendme a patch