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// Other services

Port 8474: AquaMinds NoteShare

Port 8474 is assigned by IANA to noteshare (AquaMinds NoteShare).

8474

How noteshare works

Other services
client:8474noteshareresponse client:8474noteshareresponse

The client sends a request to port 8474 and the noteshare 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 8474 dangerous?

We have no specific security note for port 8474. 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 8474

ServicePortTransportDescriptionReferenceUpdated
noteshare 8474 TCP, UDP AquaMinds NoteShare - 2005-10

// source: IANA service name and port number registry

03 Check it

Which program uses port 8474, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8474'      # process listening on 8474
sudo lsof -nP -i :8474

macOS

sudo lsof -nP -i :8474

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8474 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8474
netstat -ano | findstr :8474

From another machine

nmap -p 8474 -sV <host>
sudo nmap -sU -p 8474 <host>
nc -zv <host> 8474

Block it in the firewall

sudo ufw deny 8474/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8474" -Direction Inbound -LocalPort 8474 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8474 used for?

Port 8474 is assigned by IANA to noteshare (AquaMinds NoteShare).

Is port 8474 TCP or UDP?

Port 8474 is registered for TCP and UDP.

Is it safe to open port 8474?

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 8474 is open?

On Linux run "ss -ltnup 'sport = :8474'", on macOS "lsof -nP -i :8474", and on Windows "netstat -ano | findstr :8474" to see the local process. From another machine, "nmap -p 8474 <host>" shows whether it is reachable.

05 Related
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