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// Other services

Port 9287: Cumulus

Port 9287 is assigned by IANA to cumulus (Cumulus).

9287

How cumulus works

Other services
client:9287cumulusresponse client:9287cumulusresponse

The client sends a request to port 9287 and the cumulus 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 9287 dangerous?

We have no specific security note for port 9287. 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 9287

ServicePortTransportDescriptionReferenceUpdated
cumulus 9287 TCP, UDP Cumulus - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 9287, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9287'      # process listening on 9287
sudo lsof -nP -i :9287

macOS

sudo lsof -nP -i :9287

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9287 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9287
netstat -ano | findstr :9287

From another machine

nmap -p 9287 -sV <host>
sudo nmap -sU -p 9287 <host>
nc -zv <host> 9287

Block it in the firewall

sudo ufw deny 9287/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9287" -Direction Inbound -LocalPort 9287 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9287 used for?

Port 9287 is assigned by IANA to cumulus (Cumulus).

Is port 9287 TCP or UDP?

Port 9287 is registered for TCP and UDP.

Is it safe to open port 9287?

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 9287 is open?

On Linux run "ss -ltnup 'sport = :9287'", on macOS "lsof -nP -i :9287", and on Windows "netstat -ano | findstr :9287" to see the local process. From another machine, "nmap -p 9287 <host>" shows whether it is reachable.

05 Related
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