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// Other services

Port 6148: Ricardo North America License Manager

Port 6148 is assigned by IANA to ricardo-lm (Ricardo North America License Manager).

6148

How ricardo-lm works

Other services
client:6148ricardo-lmresponse client:6148ricardo-lmresponse

The client sends a request to port 6148 and the ricardo-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 6148 dangerous?

We have no specific security note for port 6148. 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 6148

ServicePortTransportDescriptionReferenceUpdated
ricardo-lm 6148 TCP, UDP Ricardo North America License Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6148, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6148'      # process listening on 6148
sudo lsof -nP -i :6148

macOS

sudo lsof -nP -i :6148

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6148 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6148
netstat -ano | findstr :6148

From another machine

nmap -p 6148 -sV <host>
sudo nmap -sU -p 6148 <host>
nc -zv <host> 6148

Block it in the firewall

sudo ufw deny 6148/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6148" -Direction Inbound -LocalPort 6148 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6148 used for?

Port 6148 is assigned by IANA to ricardo-lm (Ricardo North America License Manager).

Is port 6148 TCP or UDP?

Port 6148 is registered for TCP and UDP.

Is it safe to open port 6148?

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 6148 is open?

On Linux run "ss -ltnup 'sport = :6148'", on macOS "lsof -nP -i :6148", and on Windows "netstat -ano | findstr :6148" to see the local process. From another machine, "nmap -p 6148 <host>" shows whether it is reachable.

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