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// Other services

Port 6831: ambit-lm

Port 6831 is assigned by IANA to ambit-lm (ambit-lm).

6831

How ambit-lm works

Other services
client:6831ambit-lmresponse client:6831ambit-lmresponse

The client sends a request to port 6831 and the ambit-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 6831 dangerous?

We have no specific security note for port 6831. 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 6831

ServicePortTransportDescriptionReferenceUpdated
ambit-lm 6831 TCP, UDP ambit-lm - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 6831, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6831'      # process listening on 6831
sudo lsof -nP -i :6831

macOS

sudo lsof -nP -i :6831

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6831 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6831
netstat -ano | findstr :6831

From another machine

nmap -p 6831 -sV <host>
sudo nmap -sU -p 6831 <host>
nc -zv <host> 6831

Block it in the firewall

sudo ufw deny 6831/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6831" -Direction Inbound -LocalPort 6831 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6831 used for?

Port 6831 is assigned by IANA to ambit-lm (ambit-lm).

Is port 6831 TCP or UDP?

Port 6831 is registered for TCP and UDP.

Is it safe to open port 6831?

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 6831 is open?

On Linux run "ss -ltnup 'sport = :6831'", on macOS "lsof -nP -i :6831", and on Windows "netstat -ano | findstr :6831" to see the local process. From another machine, "nmap -p 6831 <host>" shows whether it is reachable.

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