Port 4743OpenHPI HPI service

OpenHPI HPI service for hardware platform management.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as openhpid

Technical Details

what runs on :4743

OpenHPI normally listens for client connections on TCP port 4743 when its daemon-based remote access is enabled. It carries the OpenHPI client/daemon protocol for hardware-platform management; the daemon uses configured HPI plugins to access functions such as sensors, inventory, controls, and event handling. The IANA registration includes both TCP and UDP, but OpenHPI deployments are principally encountered as a TCP service, and the protocol is not encrypted by default.

Security Information

exposure of :4743

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

system averages 2.7 across 909 ports — this one sits 2.3 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

This service should generally be restricted to a management network or protected with firewall rules and a secure tunnel. Exposure can disclose hardware inventory and sensor data and may permit management operations depending on the daemon and plugin configuration; do not assume that the native service provides modern authentication or confidentiality.

Record

iana registry entry

port: :4743
service: OpenHPI HPI service
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: System
usage: Port 4743 is used by the OpenHPI daemon (`openhpid`), an open-source implementation of the Service Availability Forum Hardware Platform Interface. Engineers encounter it on servers or management systems that provide remote access to hardware inventory, sensors, events, and controls through OpenHPI.
lookups: 0rank 993
added: 2026-09-06
updated: 2026-09-22
references: IANA service name registry — port 4743

Something wrong?

This record is maintained by the engineers who use port 4743. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-22.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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edit this record →back to the registry

Related Ports

all 909 in system →

the 8 most looked-up other ports in system — 909 ports carry that label.

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:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
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:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
:23	Telnet	TCP	Remote Access	caution	34.8k
:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :4743OpenHPI HPI service

Technical Details

Security Information

Related Ports

Port 4743OpenHPI HPI service