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// Other services

Port 1447: Applied Parallel Research LM

Port 1447 is assigned by IANA to apri-lm (Applied Parallel Research LM).

1447

How apri-lm works

Other services
client:1447apri-lmresponse client:1447apri-lmresponse

The client sends a request to port 1447 and the apri-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 1447 dangerous?

We have no specific security note for port 1447. 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 1447

ServicePortTransportDescriptionReferenceUpdated
apri-lm 1447 TCP, UDP Applied Parallel Research LM - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1447, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1447'      # process listening on 1447
sudo lsof -nP -i :1447

macOS

sudo lsof -nP -i :1447

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1447 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1447
netstat -ano | findstr :1447

From another machine

nmap -p 1447 -sV <host>
sudo nmap -sU -p 1447 <host>
nc -zv <host> 1447

Block it in the firewall

sudo ufw deny 1447/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1447" -Direction Inbound -LocalPort 1447 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1447 used for?

Port 1447 is assigned by IANA to apri-lm (Applied Parallel Research LM).

Is port 1447 TCP or UDP?

Port 1447 is registered for TCP and UDP.

Is it safe to open port 1447?

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 1447 is open?

On Linux run "ss -ltnup 'sport = :1447'", on macOS "lsof -nP -i :1447", and on Windows "netstat -ano | findstr :1447" to see the local process. From another machine, "nmap -p 1447 <host>" shows whether it is reachable.

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