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// Other services

Port 2287: DNA

Port 2287 is assigned by IANA to dna (DNA).

2287

How dna works

Other services
client:2287dnaresponse client:2287dnaresponse

The client sends a request to port 2287 and the dna 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 2287 dangerous?

We have no specific security note for port 2287. 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 2287

ServicePortTransportDescriptionReferenceUpdated
dna 2287 TCP, UDP DNA - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2287, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2287'      # process listening on 2287
sudo lsof -nP -i :2287

macOS

sudo lsof -nP -i :2287

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2287 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2287
netstat -ano | findstr :2287

From another machine

nmap -p 2287 -sV <host>
sudo nmap -sU -p 2287 <host>
nc -zv <host> 2287

Block it in the firewall

sudo ufw deny 2287/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2287" -Direction Inbound -LocalPort 2287 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2287 used for?

Port 2287 is assigned by IANA to dna (DNA).

Is port 2287 TCP or UDP?

Port 2287 is registered for TCP and UDP.

Is it safe to open port 2287?

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 2287 is open?

On Linux run "ss -ltnup 'sport = :2287'", on macOS "lsof -nP -i :2287", and on Windows "netstat -ano | findstr :2287" to see the local process. From another machine, "nmap -p 2287 <host>" shows whether it is reachable.

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