Port 2743MURX

Port 2743 is assigned to MURX, a little-documented service with no established common deployment.

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

Technical Details

what runs on :2743

MURX is registered on port :2743 over tcp and udp to Thomas Kuiper. 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 never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.

find what's listening on :2743

this machine

# linux
sudo ss -tulpn 'sport = :2743'

# macos / bsd
sudo lsof -nP -i :2743

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :2743

another host

nmap -sV -p T:2743 <host>
sudo nmap -sU -sV -p U:2743 <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 :2743

risk score

1/ 10safe

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

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 :2743 yet

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

Record

iana registry entry

port: :2743
service: MURX
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: MURX is assigned to TCP and UDP port 2743 and registered to Thomas Kuiper. It has no established common deployment and has not appeared open in the cited internet-wide scan data.
lookups: 0rank 993
added: 2026-09-24
updated: 2026-09-24
references: IANA service name registry — port 2743

Something wrong?

This record is maintained by the engineers who use port 2743. 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 2026-09-24.

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

browse categories →

ports registered around :2743, by lookups.

port	service	proto	category	risk	views
:2710	XBT BitTorrent Tracker	TCP	File Transfer	caution	11.6k
:2710	XBT UDP Tracker Extension	UDP	File Transfer	caution	11.4k
:2713	Raven Trinity Broker	TCPUDP	Network Services	caution	11.1k
:2700	KnowShowGo P2P	TCP	File Transfer	caution	9.9k
:2710	Knuddels Chat	TCP	Voice and Chat	caution	5.3k
:2714	Raven Trinity Data Mover	TCPUDP	File Transfer	caution	4.7k
:2735	NetIQ Monitor Console	TCPUDP	Network Services	caution	4.6k
:2784	WWW development	TCPUDP	Web Services	safe	0

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :2743MURX

Technical Details

Security Information

Related Ports

Port 2743MURX