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// Other services

Port 2872: RADIX

Port 2872 is assigned by IANA to radix (RADIX).

2872

How radix works

Other services
client:2872radixresponse client:2872radixresponse

The client sends a request to port 2872 and the radix 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 2872 dangerous?

We have no specific security note for port 2872. 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 2872

ServicePortTransportDescriptionReferenceUpdated
radix 2872 TCP, UDP RADIX - 2011-07-06

// source: IANA service name and port number registry

03 Check it

Which program uses port 2872, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2872'      # process listening on 2872
sudo lsof -nP -i :2872

macOS

sudo lsof -nP -i :2872

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2872 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2872
netstat -ano | findstr :2872

From another machine

nmap -p 2872 -sV <host>
sudo nmap -sU -p 2872 <host>
nc -zv <host> 2872

Block it in the firewall

sudo ufw deny 2872/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2872" -Direction Inbound -LocalPort 2872 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2872 used for?

Port 2872 is assigned by IANA to radix (RADIX).

Is port 2872 TCP or UDP?

Port 2872 is registered for TCP and UDP.

Is it safe to open port 2872?

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 2872 is open?

On Linux run "ss -ltnup 'sport = :2872'", on macOS "lsof -nP -i :2872", and on Windows "netstat -ano | findstr :2872" to see the local process. From another machine, "nmap -p 2872 <host>" shows whether it is reachable.

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