Port 5743Watchdoc NetPOD Protocol

Port 5743 is assigned to the Watchdoc NetPOD Protocol, but its software and deployment are not well documented.

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

also known as watchdoc-pod

Technical Details

what runs on :5743

Watchdoc NetPOD Protocol is registered on port :5743 over tcp and udp to Christophe Chevalier, assigned August 2005. 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 :5743

this machine

# linux
sudo ss -tulpn 'sport = :5743'

# macos / bsd
sudo lsof -nP -i :5743

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5743

another host

nmap -sV -p T:5743 <host>
sudo nmap -sU -sV -p U:5743 <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 :5743

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 :5743 yet

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

Record

iana registry entry

port: :5743
service: Watchdoc NetPOD Protocol
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA lists this as the Watchdoc NetPOD Protocol and attributes the registration to Christophe Chevalier. Reliable public details about what software listens on it or where it is deployed are not established.
lookups: 0rank 993
added: 2026-10-09
updated: 2026-10-09
references: IANA service name registry — port 5743

Something wrong?

This record is maintained by the engineers who use port 5743. 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 2026-10-09.

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 :5743, by lookups.

port	service	proto	category	risk	views
:5800	VNC over HTTP	TCP	Web Services	caution	30.3k
:5723	Operations Manager	TCP	Network Services	caution	8.4k
:5721	Kaseya	TCPUDP	Security	caution	7.2k
:5718	DPM Communication Server	TCPUDP	Network Services	safe	0
:5713	ProShare Conference Audio	TCPUDP	Media	safe	0
:5716	ProShare Configuration Request	TCPUDP	—	safe	0
:5717	ProShare Conference Notification	TCPUDP	—	safe	0
:5715	ProShare configuration data	TCPUDP	—	safe	0

risk mix of the 8 listed

safe63%
caution38%

0 of 8 encrypted

Port :5743Watchdoc NetPOD Protocol

Technical Details

Security Information

Related Ports

Port 5743Watchdoc NetPOD Protocol