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// Other services

Port 7775: A File System using TLS over a wide area network

Port 7775 is assigned by IANA to inetfs (A File System using TLS over a wide area network).

7775

How inetfs works

Other services
client:7775inetfsresponse client:7775inetfsresponse

The client sends a request to port 7775 and the inetfs 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)
Category
Other services
01 Security

Is port 7775 dangerous?

We have no specific security note for port 7775. 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 7775

ServicePortTransportDescriptionReferenceUpdated
inetfs 7775 TCP A File System using TLS over a wide area network - 2016-01-28
-7775-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 7775, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7775'      # process listening on 7775
sudo lsof -nP -i :7775

macOS

sudo lsof -nP -i :7775

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7775 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7775
netstat -ano | findstr :7775

From another machine

nmap -p 7775 -sV <host>
nc -zv <host> 7775

Block it in the firewall

sudo ufw deny 7775/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7775" -Direction Inbound -LocalPort 7775 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7775 used for?

Port 7775 is assigned by IANA to inetfs (A File System using TLS over a wide area network).

Is port 7775 TCP or UDP?

Port 7775 is registered for TCP.

Is it safe to open port 7775?

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 7775 is open?

On Linux run "ss -ltnup 'sport = :7775'", on macOS "lsof -nP -i :7775", and on Windows "netstat -ano | findstr :7775" to see the local process. From another machine, "nmap -p 7775 <host>" shows whether it is reachable.

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