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// Other services

Port 7663: Proprietary immutable distributed data storage

Port 7663 is assigned by IANA to rome (Proprietary immutable distributed data storage).

7663

How rome works

Other services
client:7663romeresponse client:7663romeresponse

The client sends a request to port 7663 and the rome 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 7663 dangerous?

We have no specific security note for port 7663. 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 7663

ServicePortTransportDescriptionReferenceUpdated
rome 7663 TCP, UDP Proprietary immutable distributed data storage - 2018-02-07

// source: IANA service name and port number registry

03 Check it

Which program uses port 7663, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7663'      # process listening on 7663
sudo lsof -nP -i :7663

macOS

sudo lsof -nP -i :7663

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7663 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7663
netstat -ano | findstr :7663

From another machine

nmap -p 7663 -sV <host>
sudo nmap -sU -p 7663 <host>
nc -zv <host> 7663

Block it in the firewall

sudo ufw deny 7663/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7663" -Direction Inbound -LocalPort 7663 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7663 used for?

Port 7663 is assigned by IANA to rome (Proprietary immutable distributed data storage).

Is port 7663 TCP or UDP?

Port 7663 is registered for TCP and UDP.

Is it safe to open port 7663?

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 7663 is open?

On Linux run "ss -ltnup 'sport = :7663'", on macOS "lsof -nP -i :7663", and on Windows "netstat -ano | findstr :7663" to see the local process. From another machine, "nmap -p 7663 <host>" shows whether it is reachable.

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