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// Other services

Port 416: Silverplatter

Port 416 is assigned by IANA to silverplatter (Silverplatter).

416

How silverplatter works

Other services
client:416silverplatterresponse client:416silverplatterresponse

The client sends a request to port 416 and the silverplatter 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 416 dangerous?

We have no specific security note for port 416. 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 416

ServicePortTransportDescriptionReferenceUpdated
silverplatter 416 TCP, UDP Silverplatter - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 416, and is it reachable?

Linux

sudo ss -ltnup 'sport = :416'      # process listening on 416
sudo lsof -nP -i :416

macOS

sudo lsof -nP -i :416

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 416 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 416
netstat -ano | findstr :416

From another machine

nmap -p 416 -sV <host>
sudo nmap -sU -p 416 <host>
nc -zv <host> 416

Block it in the firewall

sudo ufw deny 416/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 416" -Direction Inbound -LocalPort 416 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 416 used for?

Port 416 is assigned by IANA to silverplatter (Silverplatter).

Is port 416 TCP or UDP?

Port 416 is registered for TCP and UDP.

Is it safe to open port 416?

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 416 is open?

On Linux run "ss -ltnup 'sport = :416'", on macOS "lsof -nP -i :416", and on Windows "netstat -ano | findstr :416" to see the local process. From another machine, "nmap -p 416 <host>" shows whether it is reachable.

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