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// Other services

Port 4163: Silver Peak Peer Protocol

Port 4163 is assigned by IANA to silverpeakpeer (Silver Peak Peer Protocol).

4163

How silverpeakpeer works

Other services
client:4163silverpeakpeerresponse client:4163silverpeakpeerresponse

The client sends a request to port 4163 and the silverpeakpeer 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 4163 dangerous?

We have no specific security note for port 4163. 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 4163

ServicePortTransportDescriptionReferenceUpdated
silverpeakpeer 4163 TCP, UDP Silver Peak Peer Protocol - 2007-03

// source: IANA service name and port number registry

03 Check it

Which program uses port 4163, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4163'      # process listening on 4163
sudo lsof -nP -i :4163

macOS

sudo lsof -nP -i :4163

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4163 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4163
netstat -ano | findstr :4163

From another machine

nmap -p 4163 -sV <host>
sudo nmap -sU -p 4163 <host>
nc -zv <host> 4163

Block it in the firewall

sudo ufw deny 4163/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4163" -Direction Inbound -LocalPort 4163 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4163 used for?

Port 4163 is assigned by IANA to silverpeakpeer (Silver Peak Peer Protocol).

Is port 4163 TCP or UDP?

Port 4163 is registered for TCP and UDP.

Is it safe to open port 4163?

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 4163 is open?

On Linux run "ss -ltnup 'sport = :4163'", on macOS "lsof -nP -i :4163", and on Windows "netstat -ano | findstr :4163" to see the local process. From another machine, "nmap -p 4163 <host>" shows whether it is reachable.

05 Related
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