CyberHunter
Local dataset, no network
// Other services

Port 5431: PARK AGENT

Port 5431 is assigned by IANA to park-agent (PARK AGENT).

5431

How park-agent works

Other services
client:5431park-agentresponse client:5431park-agentresponse

The client sends a request to port 5431 and the park-agent service answers.

Transport
TCP · UDP
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 5431 dangerous?

We have no specific security note for port 5431. 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 5431

ServicePortTransportDescriptionReferenceUpdated
park-agent 5431 TCP, UDP PARK AGENT - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5431, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5431'      # process listening on 5431
sudo lsof -nP -i :5431

macOS

sudo lsof -nP -i :5431

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5431 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5431
netstat -ano | findstr :5431

From another machine

nmap -p 5431 -sV <host>
sudo nmap -sU -p 5431 <host>
nc -zv <host> 5431

Block it in the firewall

sudo ufw deny 5431/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5431" -Direction Inbound -LocalPort 5431 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5431 used for?

Port 5431 is assigned by IANA to park-agent (PARK AGENT).

Is port 5431 TCP or UDP?

Port 5431 is registered for TCP and UDP.

Is it safe to open port 5431?

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 5431 is open?

On Linux run "ss -ltnup 'sport = :5431'", on macOS "lsof -nP -i :5431", and on Windows "netstat -ano | findstr :5431" to see the local process. From another machine, "nmap -p 5431 <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

Latest vulnerability news

All news