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// Other services

Port 6344: Argus-Spectr security and fire-prevention systems service

Port 6344 is assigned by IANA to streletz (Argus-Spectr security and fire-prevention systems service).

6344

How streletz works

Other services
client:6344streletzresponse client:6344streletzresponse

The client sends a request to port 6344 and the streletz service answers.

Transport
TCP
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 6344 dangerous?

We have no specific security note for port 6344. 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 6344

ServicePortTransportDescriptionReferenceUpdated
streletz 6344 TCP Argus-Spectr security and fire-prevention systems service - 2013-10-25
-6344-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 6344, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6344'      # process listening on 6344
sudo lsof -nP -i :6344

macOS

sudo lsof -nP -i :6344

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6344 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6344
netstat -ano | findstr :6344

From another machine

nmap -p 6344 -sV <host>
nc -zv <host> 6344

Block it in the firewall

sudo ufw deny 6344/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6344" -Direction Inbound -LocalPort 6344 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6344 used for?

Port 6344 is assigned by IANA to streletz (Argus-Spectr security and fire-prevention systems service).

Is port 6344 TCP or UDP?

Port 6344 is registered for TCP.

Is it safe to open port 6344?

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 6344 is open?

On Linux run "ss -ltnup 'sport = :6344'", on macOS "lsof -nP -i :6344", and on Windows "netstat -ano | findstr :6344" to see the local process. From another machine, "nmap -p 6344 <host>" shows whether it is reachable.

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