.B \-rfbport \fIport\fP
Specifies the TCP port on which x0vncserver listens for connections from
viewers (the protocol used in VNC is called RFB - "remote framebuffer").
-The default port is 5900. Listening on TCP port can be disabled with
--\frfbport\fP=-1.
+The default port is 5900. Specify \fB-1\fP to disable listening on a TCP
+port.
.
.TP
.B \-UseIPv4
.B \-rfbport \fIport\fP
Specifies the TCP port on which Xvnc listens for connections from viewers (the
protocol used in VNC is called RFB - "remote framebuffer"). The default is
-5900 plus the display number. Listening on TCP port can be disabled with
--\frfbport\fP=-1.
+5900 plus the display number. Specify \fB-1\fP to disable listening on a TCP
+port.
.
.TP
.B \-UseIPv4