Registered · Cross-platform

1241 Nessus

TCP Yes
UDP
SCTP
DCCP

What it is

Nessus vulnerability scanner.

When / why

Scanner-to-server (legacy); modern Nessus uses 8834.

Protocol status detail

TransportStatusMeaning
TCP Yes Assigned by IANA and standardized, specified, or widely used on this port.
UDP Not applicable for this transport.
SCTP Not applicable for this transport.
DCCP Not applicable for this transport.

Port range

Registered (1024–49151). Assigned by IANA on request; usable without elevated privileges on most systems.

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