CyberHunter
Local dataset, no network
// Other services

Port 45825: Qpuncture Data Access Service

Port 45825 is assigned by IANA to qdb2service (Qpuncture Data Access Service).

45825

How qdb2service works

Other services
client:45825qdb2serviceresponse client:45825qdb2serviceresponse

The client sends a request to port 45825 and the qdb2service 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 45825 dangerous?

We have no specific security note for port 45825. 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 45825

ServicePortTransportDescriptionReferenceUpdated
qdb2service 45825 TCP, UDP Qpuncture Data Access Service - 2007-10-24

// source: IANA service name and port number registry

03 Check it

Which program uses port 45825, and is it reachable?

Linux

sudo ss -ltnup 'sport = :45825'      # process listening on 45825
sudo lsof -nP -i :45825

macOS

sudo lsof -nP -i :45825

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 45825 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 45825
netstat -ano | findstr :45825

From another machine

nmap -p 45825 -sV <host>
sudo nmap -sU -p 45825 <host>
nc -zv <host> 45825

Block it in the firewall

sudo ufw deny 45825/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 45825" -Direction Inbound -LocalPort 45825 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 45825 used for?

Port 45825 is assigned by IANA to qdb2service (Qpuncture Data Access Service).

Is port 45825 TCP or UDP?

Port 45825 is registered for TCP and UDP.

Is it safe to open port 45825?

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 45825 is open?

On Linux run "ss -ltnup 'sport = :45825'", on macOS "lsof -nP -i :45825", and on Windows "netstat -ano | findstr :45825" to see the local process. From another machine, "nmap -p 45825 <host>" shows whether it is reachable.

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