pawserv is the server for distributed PAW. It listens for connections on port 345. pawserv is not in general run from the command line, but only via inetd(8). From the PAW client side, a remote PAW session is invoked with the RLOGIN hostname command. Distributed PAW is documented fully in chapter 8 of the PAW user's guide, available in PostScript format at this URL:
Please note that pawserv receives unencrypted passwords over the network. It should therefore be used only within a trusted LAN.
pawserv is part of the CERNLIB CSPACK package, which is documented at http://wwwinfo.cern.ch/asdoc/psdir/cspack.ps.gz (PostScript) or http://wwwinfo.cern.ch/asdoc/WWW/cspack/cspmain/cspmain.html (HTML).