CyberHunter
Local dataset, no network
// Other services

Port 1590: gemini-lm

Port 1590 is assigned by IANA to gemini-lm (gemini-lm).

1590

How gemini-lm works

Other services
client:1590gemini-lmresponse client:1590gemini-lmresponse

The client sends a request to port 1590 and the gemini-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 1590 dangerous?

We have no specific security note for port 1590. 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 1590

ServicePortTransportDescriptionReferenceUpdated
gemini-lm 1590 TCP, UDP gemini-lm - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1590, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1590'      # process listening on 1590
sudo lsof -nP -i :1590

macOS

sudo lsof -nP -i :1590

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1590 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1590
netstat -ano | findstr :1590

From another machine

nmap -p 1590 -sV <host>
sudo nmap -sU -p 1590 <host>
nc -zv <host> 1590

Block it in the firewall

sudo ufw deny 1590/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1590" -Direction Inbound -LocalPort 1590 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1590 used for?

Port 1590 is assigned by IANA to gemini-lm (gemini-lm).

Is port 1590 TCP or UDP?

Port 1590 is registered for TCP and UDP.

Is it safe to open port 1590?

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 1590 is open?

On Linux run "ss -ltnup 'sport = :1590'", on macOS "lsof -nP -i :1590", and on Windows "netstat -ano | findstr :1590" to see the local process. From another machine, "nmap -p 1590 <host>" shows whether it is reachable.

05 Related
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