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// Other services

Port 7566: VSI Omega

Port 7566 is assigned by IANA to vsi-omega (VSI Omega).

7566

How vsi-omega works

Other services
client:7566vsi-omegaresponse client:7566vsi-omegaresponse

The client sends a request to port 7566 and the vsi-omega 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 7566 dangerous?

We have no specific security note for port 7566. 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 7566

ServicePortTransportDescriptionReferenceUpdated
vsi-omega 7566 TCP, UDP VSI Omega - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 7566, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7566'      # process listening on 7566
sudo lsof -nP -i :7566

macOS

sudo lsof -nP -i :7566

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7566 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7566
netstat -ano | findstr :7566

From another machine

nmap -p 7566 -sV <host>
sudo nmap -sU -p 7566 <host>
nc -zv <host> 7566

Block it in the firewall

sudo ufw deny 7566/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7566" -Direction Inbound -LocalPort 7566 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7566 used for?

Port 7566 is assigned by IANA to vsi-omega (VSI Omega).

Is port 7566 TCP or UDP?

Port 7566 is registered for TCP and UDP.

Is it safe to open port 7566?

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 7566 is open?

On Linux run "ss -ltnup 'sport = :7566'", on macOS "lsof -nP -i :7566", and on Windows "netstat -ano | findstr :7566" to see the local process. From another machine, "nmap -p 7566 <host>" shows whether it is reachable.

05 Related
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