Portcontrolcd is a Port Control Protocol client intended to open NAT port forwards and firewall pinholes for applications which accept incoming connections but do not themselves support PCP or other port opening protocols.
By default configuration paramaters are read from all files named *.conf in ${XDG_CONFIG_HOME}/portcontrolcd/ or ${HOME}/.config/portcontrolcd/ if XDG_CONFIG_HOME is not set. An alternative path can be specified with the --config command line parameter.
The configuration file uses an ini format where each section is a port mapping. The section name is an aribrary name for the mapping. Each section may contain the following keys:
| Key | Value |
|---|---|
| Interface | The name of a network inferface on which to map the port. If this key is ommitted the port is mapped on all interfaces. |
| Port | The port number to map. Required. |
| Protocol | The name of the protocol to map. E.g. TCP or UDP. If this key is ommitted the port is mapped for all protocols. Mapping all protocols may not be supported by the PCP server. |
; This goes into ~/.config/portcontrolcd/ssh.conf
[ssh server]
Port = 22
Protocol = TCP