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// Other services

Port 1471: csdmbase

Port 1471 is assigned by IANA to csdmbase (csdmbase).

1471

How csdmbase works

Other services
client:1471csdmbaseresponse client:1471csdmbaseresponse

The client sends a request to port 1471 and the csdmbase 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 1471 dangerous?

We have no specific security note for port 1471. 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 1471

ServicePortTransportDescriptionReferenceUpdated
csdmbase 1471 TCP, UDP csdmbase - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1471, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1471'      # process listening on 1471
sudo lsof -nP -i :1471

macOS

sudo lsof -nP -i :1471

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1471 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1471
netstat -ano | findstr :1471

From another machine

nmap -p 1471 -sV <host>
sudo nmap -sU -p 1471 <host>
nc -zv <host> 1471

Block it in the firewall

sudo ufw deny 1471/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1471" -Direction Inbound -LocalPort 1471 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1471 used for?

Port 1471 is assigned by IANA to csdmbase (csdmbase).

Is port 1471 TCP or UDP?

Port 1471 is registered for TCP and UDP.

Is it safe to open port 1471?

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 1471 is open?

On Linux run "ss -ltnup 'sport = :1471'", on macOS "lsof -nP -i :1471", and on Windows "netstat -ano | findstr :1471" to see the local process. From another machine, "nmap -p 1471 <host>" shows whether it is reachable.

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