CyberHunter
Local dataset, no network
// Other services

Port 9597: PD Administration

Port 9597 is assigned by IANA to pd-admin (PD Administration).

9597

How pd-admin works

Other services
client:9597pd-adminresponse client:9597pd-adminresponse

The client sends a request to port 9597 and the pd-admin 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 9597 dangerous?

We have no specific security note for port 9597. 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 9597

ServicePortTransportDescriptionReferenceUpdated
pd-admin 9597 TCP, UDP PD Administration - 2005-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 9597, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9597'      # process listening on 9597
sudo lsof -nP -i :9597

macOS

sudo lsof -nP -i :9597

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9597 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9597
netstat -ano | findstr :9597

From another machine

nmap -p 9597 -sV <host>
sudo nmap -sU -p 9597 <host>
nc -zv <host> 9597

Block it in the firewall

sudo ufw deny 9597/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9597" -Direction Inbound -LocalPort 9597 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9597 used for?

Port 9597 is assigned by IANA to pd-admin (PD Administration).

Is port 9597 TCP or UDP?

Port 9597 is registered for TCP and UDP.

Is it safe to open port 9597?

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 9597 is open?

On Linux run "ss -ltnup 'sport = :9597'", on macOS "lsof -nP -i :9597", and on Windows "netstat -ano | findstr :9597" to see the local process. From another machine, "nmap -p 9597 <host>" shows whether it is reachable.

05 Related
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