Port 1743Cinema Graphics License Manager

License-manager traffic for Cinema Graphics software over TCP or UDP port 1743.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

also known as cinegrfx-lm

Technical Details

what runs on :1743

Cinema Graphics License Manager is registered on port :1743 over tcp and udp to Rodney Iwashina. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is found open rarely. What's listening is often not the registered service, so check before you assume.

find what's listening on :1743

this machine

# linux
sudo ss -tulpn 'sport = :1743'

# macos / bsd
sudo lsof -nP -i :1743

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :1743

another host

nmap -sV -p T:1743 <host>
sudo nmap -sU -sV -p U:1743 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :1743

risk score

1/ 10safe

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

system averages 2.6 across 904 ports — this one sits 1.6 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

no security notes recorded for :1743 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :1743
service: Cinema Graphics License Manager
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: System
usage: TCP and UDP port 1743 is assigned to the Cinema Graphics License Manager. The assignment is registered to Rodney Iwashina; public protocol and deployment details are not recorded here.
lookups: 0rank 993
added: 2026-09-01
updated: 2026-09-01
references: IANA service name registry — port 1743

Something wrong?

This record is maintained by the engineers who use port 1743. 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 2026-09-01.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 904 in system →

the 8 most looked-up other ports in system — 904 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 :1743Cinema Graphics License Manager

Technical Details

Security Information

Related Ports

Port 1743Cinema Graphics License Manager