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// Other services

Port 44444: Cognex DataMan Management Protocol

Port 44444 is assigned by IANA to cognex-dataman (Cognex DataMan Management Protocol).

44444

How cognex-dataman works

Other services
client:44444cognex-datamanresponse client:44444cognex-datamanresponse

The client sends a request to port 44444 and the cognex-dataman service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 44444 dangerous?

We have no specific security note for port 44444. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 44444

ServicePortTransportDescriptionReferenceUpdated
cognex-dataman 44444 TCP Cognex DataMan Management Protocol - 2012-08-28
-44444-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 44444, and is it reachable?

Linux

sudo ss -ltnup 'sport = :44444'      # process listening on 44444
sudo lsof -nP -i :44444

macOS

sudo lsof -nP -i :44444

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 44444 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 44444
netstat -ano | findstr :44444

From another machine

nmap -p 44444 -sV <host>
nc -zv <host> 44444

Block it in the firewall

sudo ufw deny 44444/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 44444" -Direction Inbound -LocalPort 44444 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 44444 used for?

Port 44444 is assigned by IANA to cognex-dataman (Cognex DataMan Management Protocol).

Is port 44444 TCP or UDP?

Port 44444 is registered for TCP.

Is it safe to open port 44444?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 44444 is open?

On Linux run "ss -ltnup 'sport = :44444'", on macOS "lsof -nP -i :44444", and on Windows "netstat -ano | findstr :44444" to see the local process. From another machine, "nmap -p 44444 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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