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// Other services

Port 2270: starSchool

Port 2270 is assigned by IANA to starschool (starSchool).

2270

How starschool works

Other services
client:2270starschoolresponse client:2270starschoolresponse

The client sends a request to port 2270 and the starschool 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 2270 dangerous?

We have no specific security note for port 2270. 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 2270

ServicePortTransportDescriptionReferenceUpdated
starschool 2270 TCP, UDP starSchool - 2004-12

// source: IANA service name and port number registry

03 Check it

Which program uses port 2270, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2270'      # process listening on 2270
sudo lsof -nP -i :2270

macOS

sudo lsof -nP -i :2270

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2270 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2270
netstat -ano | findstr :2270

From another machine

nmap -p 2270 -sV <host>
sudo nmap -sU -p 2270 <host>
nc -zv <host> 2270

Block it in the firewall

sudo ufw deny 2270/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2270" -Direction Inbound -LocalPort 2270 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2270 used for?

Port 2270 is assigned by IANA to starschool (starSchool).

Is port 2270 TCP or UDP?

Port 2270 is registered for TCP and UDP.

Is it safe to open port 2270?

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 2270 is open?

On Linux run "ss -ltnup 'sport = :2270'", on macOS "lsof -nP -i :2270", and on Windows "netstat -ano | findstr :2270" to see the local process. From another machine, "nmap -p 2270 <host>" shows whether it is reachable.

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