CyberHunter
Local dataset, no network
// Other services

Port 1679: darcorp-lm

Port 1679 is assigned by IANA to darcorp-lm (darcorp-lm).

1679

How darcorp-lm works

Other services
client:1679darcorp-lmresponse client:1679darcorp-lmresponse

The client sends a request to port 1679 and the darcorp-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 1679 dangerous?

We have no specific security note for port 1679. 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 1679

ServicePortTransportDescriptionReferenceUpdated
darcorp-lm 1679 TCP, UDP darcorp-lm - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1679, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1679'      # process listening on 1679
sudo lsof -nP -i :1679

macOS

sudo lsof -nP -i :1679

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1679 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1679
netstat -ano | findstr :1679

From another machine

nmap -p 1679 -sV <host>
sudo nmap -sU -p 1679 <host>
nc -zv <host> 1679

Block it in the firewall

sudo ufw deny 1679/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1679" -Direction Inbound -LocalPort 1679 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1679 used for?

Port 1679 is assigned by IANA to darcorp-lm (darcorp-lm).

Is port 1679 TCP or UDP?

Port 1679 is registered for TCP and UDP.

Is it safe to open port 1679?

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 1679 is open?

On Linux run "ss -ltnup 'sport = :1679'", on macOS "lsof -nP -i :1679", and on Windows "netstat -ano | findstr :1679" to see the local process. From another machine, "nmap -p 1679 <host>" shows whether it is reachable.

05 Related
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