CyberHunter
Local dataset, no network
// Other services

Port 3578: Data Port

Port 3578 is assigned by IANA to data-port (Data Port).

3578

How data-port works

Other services
client:3578data-portresponse client:3578data-portresponse

The client sends a request to port 3578 and the data-port 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 3578 dangerous?

We have no specific security note for port 3578. 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 3578

ServicePortTransportDescriptionReferenceUpdated
data-port 3578 TCP, UDP Data Port - 2002-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 3578, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3578'      # process listening on 3578
sudo lsof -nP -i :3578

macOS

sudo lsof -nP -i :3578

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3578 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3578
netstat -ano | findstr :3578

From another machine

nmap -p 3578 -sV <host>
sudo nmap -sU -p 3578 <host>
nc -zv <host> 3578

Block it in the firewall

sudo ufw deny 3578/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3578" -Direction Inbound -LocalPort 3578 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3578 used for?

Port 3578 is assigned by IANA to data-port (Data Port).

Is port 3578 TCP or UDP?

Port 3578 is registered for TCP and UDP.

Is it safe to open port 3578?

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 3578 is open?

On Linux run "ss -ltnup 'sport = :3578'", on macOS "lsof -nP -i :3578", and on Windows "netstat -ano | findstr :3578" to see the local process. From another machine, "nmap -p 3578 <host>" shows whether it is reachable.

05 Related

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