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// Other services

Port 1654: stargatealerts

Port 1654 is assigned by IANA to stargatealerts (stargatealerts).

1654

How stargatealerts works

Other services
client:1654stargatealertsresponse client:1654stargatealertsresponse

The client sends a request to port 1654 and the stargatealerts 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 1654 dangerous?

We have no specific security note for port 1654. 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 1654

ServicePortTransportDescriptionReferenceUpdated
stargatealerts 1654 TCP, UDP stargatealerts - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1654, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1654'      # process listening on 1654
sudo lsof -nP -i :1654

macOS

sudo lsof -nP -i :1654

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1654 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1654
netstat -ano | findstr :1654

From another machine

nmap -p 1654 -sV <host>
sudo nmap -sU -p 1654 <host>
nc -zv <host> 1654

Block it in the firewall

sudo ufw deny 1654/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1654" -Direction Inbound -LocalPort 1654 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1654 used for?

Port 1654 is assigned by IANA to stargatealerts (stargatealerts).

Is port 1654 TCP or UDP?

Port 1654 is registered for TCP and UDP.

Is it safe to open port 1654?

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 1654 is open?

On Linux run "ss -ltnup 'sport = :1654'", on macOS "lsof -nP -i :1654", and on Windows "netstat -ano | findstr :1654" to see the local process. From another machine, "nmap -p 1654 <host>" shows whether it is reachable.

05 Related
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