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// Other services

Port 6346: gnutella-svc

Port 6346 is assigned by IANA to gnutella-svc (gnutella-svc).

6346

How gnutella-svc works

Other services
client:6346gnutella-svcresponse client:6346gnutella-svcresponse

The client sends a request to port 6346 and the gnutella-svc 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 6346 dangerous?

We have no specific security note for port 6346. 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 6346

ServicePortTransportDescriptionReferenceUpdated
gnutella-svc 6346 TCP, UDP gnutella-svc - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6346, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6346'      # process listening on 6346
sudo lsof -nP -i :6346

macOS

sudo lsof -nP -i :6346

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6346 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6346
netstat -ano | findstr :6346

From another machine

nmap -p 6346 -sV <host>
sudo nmap -sU -p 6346 <host>
nc -zv <host> 6346

Block it in the firewall

sudo ufw deny 6346/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6346" -Direction Inbound -LocalPort 6346 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6346 used for?

Port 6346 is assigned by IANA to gnutella-svc (gnutella-svc).

Is port 6346 TCP or UDP?

Port 6346 is registered for TCP and UDP.

Is it safe to open port 6346?

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 6346 is open?

On Linux run "ss -ltnup 'sport = :6346'", on macOS "lsof -nP -i :6346", and on Windows "netstat -ano | findstr :6346" to see the local process. From another machine, "nmap -p 6346 <host>" shows whether it is reachable.

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