CyberHunter
Local dataset, no network
// Other services

Port 8665: Monetra

Port 8665 is assigned by IANA to monetra (Monetra).

8665

How monetra works

Other services
client:8665monetraresponse client:8665monetraresponse

The client sends a request to port 8665 and the monetra service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
01 Security

Is port 8665 dangerous?

We have no specific security note for port 8665. 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 8665

ServicePortTransportDescriptionReferenceUpdated
monetra 8665 TCP Monetra - 2013-04-02
-8665-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8665, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8665'      # process listening on 8665
sudo lsof -nP -i :8665

macOS

sudo lsof -nP -i :8665

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8665 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8665
netstat -ano | findstr :8665

From another machine

nmap -p 8665 -sV <host>
nc -zv <host> 8665

Block it in the firewall

sudo ufw deny 8665/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8665" -Direction Inbound -LocalPort 8665 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8665 used for?

Port 8665 is assigned by IANA to monetra (Monetra).

Is port 8665 TCP or UDP?

Port 8665 is registered for TCP.

Is it safe to open port 8665?

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 8665 is open?

On Linux run "ss -ltnup 'sport = :8665'", on macOS "lsof -nP -i :8665", and on Windows "netstat -ano | findstr :8665" to see the local process. From another machine, "nmap -p 8665 <host>" shows whether it is reachable.

05 Related

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