Port 72Remote Job Service

A legacy remote job submission service assigned to TCP and UDP port 72.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as netrjs-2

Technical Details

what runs on :72

IANA assigns this service on both TCP and UDP. It belongs to the historical netrjs (Network Remote Job Service or Remote Job Entry) group using ports 71–74; exact handshake and job framing depend on the legacy implementation, and modern deployments are uncommon. The service has no standard encryption implied by the assignment, so traffic should be treated as cleartext unless protected externally.

Security Information

exposure of :72

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

remote access averages 3.7 across 209 ports — this one sits 1.7 below.

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

An exposed listener may accept or process remote job requests, potentially allowing unauthorized job submission or disclosure of job data if the implementation lacks authentication. Because this is an obsolete and rarely observed service with no general internet use case, it should normally be blocked from the public internet and restricted to trusted legacy hosts.

Record

iana registry entry

port: :72
service: Remote Job Service
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Remote Access System
usage: Port 72 is the second traditional netrjs endpoint in the Network Remote Job Service family, alongside ports 71, 73, and 74. It is rarely encountered today and is generally associated with legacy or compatibility software rather than a modern widely deployed product.
lookups: 0rank 993
added: 2026-08-27
updated: 2026-09-22
references: IANA service name registry — port 72

Something wrong?

This record is maintained by the engineers who use port 72. 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.

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edit this record →back to the registry

Related Ports

all 209 in remote access →

the 8 most looked-up other ports in remote access — 209 ports carry that label.

port	service	proto	category	risk	views
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	D2GS Admin Console	TCP	Remote Access	caution	83.7k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:23	Telnet	TCP	Remote Access	caution	34.8k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :72Remote Job Service

Technical Details

Security Information

Related Ports

Port 72Remote Job Service