CyberHunter
// Other services

Port 2385: SD-DATA

Port 2385 is assigned by IANA to sd-data (SD-DATA).

2385

How sd-data works

Other services
client:2385sd-dataresponse client:2385sd-dataresponse

The client sends a request to port 2385 and the sd-data 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)
01 Security

Is port 2385 dangerous?

We have no specific security note for port 2385. 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 2385

ServicePortTransportDescriptionReferenceUpdated
sd-data 2385 TCP, UDP SD-DATA - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2385, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2385'      # process listening on 2385
sudo lsof -nP -i :2385

macOS

sudo lsof -nP -i :2385

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2385 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2385
netstat -ano | findstr :2385

From another machine

nmap -p 2385 -sV <host>
sudo nmap -sU -p 2385 <host>
nc -zv <host> 2385

Block it in the firewall

sudo ufw deny 2385/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2385" -Direction Inbound -LocalPort 2385 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2385 used for?

Port 2385 is assigned by IANA to sd-data (SD-DATA).

Is port 2385 TCP or UDP?

Port 2385 is registered for TCP and UDP.

Is it safe to open port 2385?

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 2385 is open?

On Linux run "ss -ltnup 'sport = :2385'", on macOS "lsof -nP -i :2385", and on Windows "netstat -ano | findstr :2385" to see the local process. From another machine, "nmap -p 2385 <host>" shows whether it is reachable.

05 Related