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// Other services

Port 1325: Thermo Fisher Scientific Instrumentation (Formally Dionex)

Port 1325 is assigned by IANA to dx-instrument (Thermo Fisher Scientific Instrumentation (Formally Dionex)).

1325

How dx-instrument works

Other services
client:1325dx-instrumentresponse client:1325dx-instrumentresponse

The client sends a request to port 1325 and the dx-instrument 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 1325 dangerous?

We have no specific security note for port 1325. 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 1325

ServicePortTransportDescriptionReferenceUpdated
dx-instrument 1325 TCP, UDP Thermo Fisher Scientific Instrumentation (Formally Dionex) - 2025-09-22

// source: IANA service name and port number registry

03 Check it

Which program uses port 1325, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1325'      # process listening on 1325
sudo lsof -nP -i :1325

macOS

sudo lsof -nP -i :1325

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1325 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1325
netstat -ano | findstr :1325

From another machine

nmap -p 1325 -sV <host>
sudo nmap -sU -p 1325 <host>
nc -zv <host> 1325

Block it in the firewall

sudo ufw deny 1325/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1325" -Direction Inbound -LocalPort 1325 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1325 used for?

Port 1325 is assigned by IANA to dx-instrument (Thermo Fisher Scientific Instrumentation (Formally Dionex)).

Is port 1325 TCP or UDP?

Port 1325 is registered for TCP and UDP.

Is it safe to open port 1325?

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 1325 is open?

On Linux run "ss -ltnup 'sport = :1325'", on macOS "lsof -nP -i :1325", and on Windows "netstat -ano | findstr :1325" to see the local process. From another machine, "nmap -p 1325 <host>" shows whether it is reachable.

05 Related
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