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// Other services

Port 2986: STONEFALLS

Port 2986 is assigned by IANA to stonefalls (STONEFALLS).

2986

How stonefalls works

Other services
client:2986stonefallsresponse client:2986stonefallsresponse

The client sends a request to port 2986 and the stonefalls 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 2986 dangerous?

We have no specific security note for port 2986. 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 2986

ServicePortTransportDescriptionReferenceUpdated
stonefalls 2986 TCP, UDP STONEFALLS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2986, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2986'      # process listening on 2986
sudo lsof -nP -i :2986

macOS

sudo lsof -nP -i :2986

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2986 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2986
netstat -ano | findstr :2986

From another machine

nmap -p 2986 -sV <host>
sudo nmap -sU -p 2986 <host>
nc -zv <host> 2986

Block it in the firewall

sudo ufw deny 2986/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2986" -Direction Inbound -LocalPort 2986 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2986 used for?

Port 2986 is assigned by IANA to stonefalls (STONEFALLS).

Is port 2986 TCP or UDP?

Port 2986 is registered for TCP and UDP.

Is it safe to open port 2986?

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 2986 is open?

On Linux run "ss -ltnup 'sport = :2986'", on macOS "lsof -nP -i :2986", and on Windows "netstat -ano | findstr :2986" to see the local process. From another machine, "nmap -p 2986 <host>" shows whether it is reachable.

05 Related
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