// REFERENCE
Port 111 (RPCbind / Portmapper)
Protocol: TCP/UDP
Service: RPCbind
High risk
RPCbind maps RPC services (like NFS) to their ports. Exposed it leaks which services run and has been abused for DDoS amplification. It must not be reachable from the Internet.
Related tools
Work with this in:
Related
135
Port 135 (MSRPC) 137
Port 137 (NetBIOS Name) 138
Port 138 (NetBIOS Datagram) 1883
Port 1883 (MQTT) 2375
Port 2375 (Docker API) 2376
Port 2376 (Docker API TLS)
Port 135 (MSRPC) 137
Port 137 (NetBIOS Name) 138
Port 138 (NetBIOS Datagram) 1883
Port 1883 (MQTT) 2375
Port 2375 (Docker API) 2376
Port 2376 (Docker API TLS)
Assignments per the IANA port registry. Educational content.