Port
Port 111 — RPCbind
Port 111 (TCP/UDP) is used by RPCbind. ONC RPC portmapper, used by NFS and other services.
Port 111 at a glance
| Property | Value |
|---|---|
| Port number | 111 |
| Transport | TCP/UDP |
| Service | RPCbind |
| Category | Well-known port |
What it is used for
ONC RPC portmapper, used by NFS and other services.
Security considerations
Frequently probed; firewall from the internet.
See our full TCP/UDP port reference and learn how firewalls filter ports in the CyberOps course.
Frequently asked questions
What is port 111 used for?
Port 111 (TCP/UDP) is used by RPCbind. ONC RPC portmapper, used by NFS and other services.
Is port 111 TCP or UDP?
Port 111 uses TCP/UDP.
Is it safe to open port 111?
Frequently probed; firewall from the internet.
Related
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