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// Other services

Port 2831: silkp3

Port 2831 is assigned by IANA to silkp3 (silkp3).

2831

How silkp3 works

Other services
client:2831silkp3response client:2831silkp3response

The client sends a request to port 2831 and the silkp3 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 2831 dangerous?

We have no specific security note for port 2831. 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 2831

ServicePortTransportDescriptionReferenceUpdated
silkp3 2831 TCP, UDP silkp3 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2831, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2831'      # process listening on 2831
sudo lsof -nP -i :2831

macOS

sudo lsof -nP -i :2831

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2831 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2831
netstat -ano | findstr :2831

From another machine

nmap -p 2831 -sV <host>
sudo nmap -sU -p 2831 <host>
nc -zv <host> 2831

Block it in the firewall

sudo ufw deny 2831/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2831" -Direction Inbound -LocalPort 2831 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2831 used for?

Port 2831 is assigned by IANA to silkp3 (silkp3).

Is port 2831 TCP or UDP?

Port 2831 is registered for TCP and UDP.

Is it safe to open port 2831?

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 2831 is open?

On Linux run "ss -ltnup 'sport = :2831'", on macOS "lsof -nP -i :2831", and on Windows "netstat -ano | findstr :2831" to see the local process. From another machine, "nmap -p 2831 <host>" shows whether it is reachable.

05 Related
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