513
type: Concept
type: Thing
type: NamedIndividual
type: Port
notation: 513
narrower: 513 (UDP)
narrower: 513 (TCP)
in dataset: port

513 (UDP)
type: Port
notation: 513
label: maintains data bases showing who's logged in to machines on a local net and the load average of the machine
term status: stable
description: maintains data bases showing who's logged in to machines on a local net and the load average of the machine

UDP
type: Concept
type: Thing
type: NamedIndividual
type: Protocol
label: User Datagram
notation: udp
term status: stable
description: User Datagram
IANA ref: RFC768
in dataset: protocol
has part: 513 (UDP)

RFC768
type: Document

Jon Postel
type: Agent

WHO
type: Concept
type: Thing
type: NamedIndividual
type: Service
notation: who
ports: 513 (UDP)

513 (TCP)
type: Port
notation: 513
label: maintains data bases showing who's logged in to machines on a local net and the load average of the machine
term status: stable
description: maintains data bases showing who's logged in to machines on a local net and the load average of the machine

TCP
type: Concept
type: Thing
type: NamedIndividual
type: Protocol
label: Transmission Control
notation: tcp
term status: stable
description: Transmission Control
IANA ref: RFC9293
in dataset: protocol
has part: 513 (TCP)

RFC9293
type: Document

LOGIN
type: Concept
type: Thing
type: NamedIndividual
type: Service
notation: login
ports: 513 (TCP)

513
type: Document
primary topic: 513