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// Other services

Port 2895: NATUS LINK

Port 2895 is assigned by IANA to natuslink (NATUS LINK).

2895

How natuslink works

Other services
client:2895natuslinkresponse client:2895natuslinkresponse

The client sends a request to port 2895 and the natuslink 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 2895 dangerous?

We have no specific security note for port 2895. 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 2895

ServicePortTransportDescriptionReferenceUpdated
natuslink 2895 TCP, UDP NATUS LINK - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2895, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2895'      # process listening on 2895
sudo lsof -nP -i :2895

macOS

sudo lsof -nP -i :2895

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2895 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2895
netstat -ano | findstr :2895

From another machine

nmap -p 2895 -sV <host>
sudo nmap -sU -p 2895 <host>
nc -zv <host> 2895

Block it in the firewall

sudo ufw deny 2895/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2895" -Direction Inbound -LocalPort 2895 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2895 used for?

Port 2895 is assigned by IANA to natuslink (NATUS LINK).

Is port 2895 TCP or UDP?

Port 2895 is registered for TCP and UDP.

Is it safe to open port 2895?

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 2895 is open?

On Linux run "ss -ltnup 'sport = :2895'", on macOS "lsof -nP -i :2895", and on Windows "netstat -ano | findstr :2895" to see the local process. From another machine, "nmap -p 2895 <host>" shows whether it is reachable.

05 Related
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