CyberHunter
Local dataset, no network
// Other services

Port 37475: science + computing's Venus Administration Port

Port 37475 is assigned by IANA to neckar (science + computing's Venus Administration Port).

37475

How neckar works

Other services
client:37475neckarresponse client:37475neckarresponse

The client sends a request to port 37475 and the neckar 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 37475 dangerous?

We have no specific security note for port 37475. 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 37475

ServicePortTransportDescriptionReferenceUpdated
neckar 37475 TCP, UDP science + computing's Venus Administration Port - 2002-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 37475, and is it reachable?

Linux

sudo ss -ltnup 'sport = :37475'      # process listening on 37475
sudo lsof -nP -i :37475

macOS

sudo lsof -nP -i :37475

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 37475 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 37475
netstat -ano | findstr :37475

From another machine

nmap -p 37475 -sV <host>
sudo nmap -sU -p 37475 <host>
nc -zv <host> 37475

Block it in the firewall

sudo ufw deny 37475/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 37475" -Direction Inbound -LocalPort 37475 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 37475 used for?

Port 37475 is assigned by IANA to neckar (science + computing's Venus Administration Port).

Is port 37475 TCP or UDP?

Port 37475 is registered for TCP and UDP.

Is it safe to open port 37475?

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 37475 is open?

On Linux run "ss -ltnup 'sport = :37475'", on macOS "lsof -nP -i :37475", and on Windows "netstat -ano | findstr :37475" to see the local process. From another machine, "nmap -p 37475 <host>" shows whether it is reachable.

05 Related
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