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// Other services

Port 1432: Blueberry Software License Manager

Port 1432 is assigned by IANA to blueberry-lm (Blueberry Software License Manager).

1432

How blueberry-lm works

Other services
client:1432blueberry-lmresponse client:1432blueberry-lmresponse

The client sends a request to port 1432 and the blueberry-lm 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 1432 dangerous?

We have no specific security note for port 1432. 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 1432

ServicePortTransportDescriptionReferenceUpdated
blueberry-lm 1432 TCP, UDP Blueberry Software License Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1432, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1432'      # process listening on 1432
sudo lsof -nP -i :1432

macOS

sudo lsof -nP -i :1432

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1432 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1432
netstat -ano | findstr :1432

From another machine

nmap -p 1432 -sV <host>
sudo nmap -sU -p 1432 <host>
nc -zv <host> 1432

Block it in the firewall

sudo ufw deny 1432/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1432" -Direction Inbound -LocalPort 1432 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1432 used for?

Port 1432 is assigned by IANA to blueberry-lm (Blueberry Software License Manager).

Is port 1432 TCP or UDP?

Port 1432 is registered for TCP and UDP.

Is it safe to open port 1432?

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 1432 is open?

On Linux run "ss -ltnup 'sport = :1432'", on macOS "lsof -nP -i :1432", and on Windows "netstat -ano | findstr :1432" to see the local process. From another machine, "nmap -p 1432 <host>" shows whether it is reachable.

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