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// Other services

Port 2882: NDTP

Port 2882 is assigned by IANA to ndtp (NDTP).

2882

How ndtp works

Other services
client:2882ndtpresponse client:2882ndtpresponse

The client sends a request to port 2882 and the ndtp 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 2882 dangerous?

We have no specific security note for port 2882. 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 2882

ServicePortTransportDescriptionReferenceUpdated
ndtp 2882 TCP, UDP NDTP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2882, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2882'      # process listening on 2882
sudo lsof -nP -i :2882

macOS

sudo lsof -nP -i :2882

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2882 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2882
netstat -ano | findstr :2882

From another machine

nmap -p 2882 -sV <host>
sudo nmap -sU -p 2882 <host>
nc -zv <host> 2882

Block it in the firewall

sudo ufw deny 2882/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2882" -Direction Inbound -LocalPort 2882 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2882 used for?

Port 2882 is assigned by IANA to ndtp (NDTP).

Is port 2882 TCP or UDP?

Port 2882 is registered for TCP and UDP.

Is it safe to open port 2882?

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 2882 is open?

On Linux run "ss -ltnup 'sport = :2882'", on macOS "lsof -nP -i :2882", and on Windows "netstat -ano | findstr :2882" to see the local process. From another machine, "nmap -p 2882 <host>" shows whether it is reachable.

05 Related
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