CyberHunter
Local dataset, no network
// Other services

Port 7391: mind-file system server

Port 7391 is assigned by IANA to mindfilesys (mind-file system server).

7391

How mindfilesys works

Other services
client:7391mindfilesysresponse client:7391mindfilesysresponse

The client sends a request to port 7391 and the mindfilesys 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 7391 dangerous?

We have no specific security note for port 7391. 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 7391

ServicePortTransportDescriptionReferenceUpdated
mindfilesys 7391 TCP, UDP mind-file system server - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 7391, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7391'      # process listening on 7391
sudo lsof -nP -i :7391

macOS

sudo lsof -nP -i :7391

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7391 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7391
netstat -ano | findstr :7391

From another machine

nmap -p 7391 -sV <host>
sudo nmap -sU -p 7391 <host>
nc -zv <host> 7391

Block it in the firewall

sudo ufw deny 7391/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7391" -Direction Inbound -LocalPort 7391 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7391 used for?

Port 7391 is assigned by IANA to mindfilesys (mind-file system server).

Is port 7391 TCP or UDP?

Port 7391 is registered for TCP and UDP.

Is it safe to open port 7391?

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 7391 is open?

On Linux run "ss -ltnup 'sport = :7391'", on macOS "lsof -nP -i :7391", and on Windows "netstat -ano | findstr :7391" to see the local process. From another machine, "nmap -p 7391 <host>" shows whether it is reachable.

05 Related
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