CyberHunter
Local dataset, no network
// Other services

Port 2997: REBOL

Port 2997 is assigned by IANA to rebol (REBOL).

2997

How rebol works

Other services
client:2997rebolresponse client:2997rebolresponse

The client sends a request to port 2997 and the rebol 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 2997 dangerous?

We have no specific security note for port 2997. 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 2997

ServicePortTransportDescriptionReferenceUpdated
rebol 2997 TCP, UDP REBOL - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2997, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2997'      # process listening on 2997
sudo lsof -nP -i :2997

macOS

sudo lsof -nP -i :2997

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2997 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2997
netstat -ano | findstr :2997

From another machine

nmap -p 2997 -sV <host>
sudo nmap -sU -p 2997 <host>
nc -zv <host> 2997

Block it in the firewall

sudo ufw deny 2997/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2997" -Direction Inbound -LocalPort 2997 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2997 used for?

Port 2997 is assigned by IANA to rebol (REBOL).

Is port 2997 TCP or UDP?

Port 2997 is registered for TCP and UDP.

Is it safe to open port 2997?

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 2997 is open?

On Linux run "ss -ltnup 'sport = :2997'", on macOS "lsof -nP -i :2997", and on Windows "netstat -ano | findstr :2997" to see the local process. From another machine, "nmap -p 2997 <host>" shows whether it is reachable.

05 Related
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