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// Other services

Port 20670: Track

Port 20670 is assigned by IANA to track (Track).

20670

How track works

Other services
client:20670trackresponse client:20670trackresponse

The client sends a request to port 20670 and the track 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 20670 dangerous?

We have no specific security note for port 20670. 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 20670

ServicePortTransportDescriptionReferenceUpdated
track 20670 TCP, UDP Track - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 20670, and is it reachable?

Linux

sudo ss -ltnup 'sport = :20670'      # process listening on 20670
sudo lsof -nP -i :20670

macOS

sudo lsof -nP -i :20670

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 20670 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 20670
netstat -ano | findstr :20670

From another machine

nmap -p 20670 -sV <host>
sudo nmap -sU -p 20670 <host>
nc -zv <host> 20670

Block it in the firewall

sudo ufw deny 20670/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 20670" -Direction Inbound -LocalPort 20670 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 20670 used for?

Port 20670 is assigned by IANA to track (Track).

Is port 20670 TCP or UDP?

Port 20670 is registered for TCP and UDP.

Is it safe to open port 20670?

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 20670 is open?

On Linux run "ss -ltnup 'sport = :20670'", on macOS "lsof -nP -i :20670", and on Windows "netstat -ano | findstr :20670" to see the local process. From another machine, "nmap -p 20670 <host>" shows whether it is reachable.

05 Related
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