CyberHunter
Local dataset, no network
// Other services

Port 634: ginad

Port 634 is assigned by IANA to ginad (ginad).

634

How ginad works

Other services
client:634ginadresponse client:634ginadresponse

The client sends a request to port 634 and the ginad 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 634 dangerous?

We have no specific security note for port 634. 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 634

ServicePortTransportDescriptionReferenceUpdated
ginad 634 TCP, UDP ginad - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 634, and is it reachable?

Linux

sudo ss -ltnup 'sport = :634'      # process listening on 634
sudo lsof -nP -i :634

macOS

sudo lsof -nP -i :634

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 634 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 634
netstat -ano | findstr :634

From another machine

nmap -p 634 -sV <host>
sudo nmap -sU -p 634 <host>
nc -zv <host> 634

Block it in the firewall

sudo ufw deny 634/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 634" -Direction Inbound -LocalPort 634 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 634 used for?

Port 634 is assigned by IANA to ginad (ginad).

Is port 634 TCP or UDP?

Port 634 is registered for TCP and UDP.

Is it safe to open port 634?

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 634 is open?

On Linux run "ss -ltnup 'sport = :634'", on macOS "lsof -nP -i :634", and on Windows "netstat -ano | findstr :634" to see the local process. From another machine, "nmap -p 634 <host>" shows whether it is reachable.

05 Related
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