Mapping Those Pesky Ports
Portmap (aka Rpcbind)
- Runs on port 111
- Maps between RPC service numbers and TCP/IP port numbers
- RPC services register their service number, version and port number with portmap/rpcbind when the start up
- Clients contact portmap/rpcbind to find the port that a particular service is running on.
- Use rpcinfo -p to display registered services