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// Other services

Port 4567: TRAM

Port 4567 is assigned by IANA to tram (TRAM).

4567

How tram works

Other services
client:4567tramresponse client:4567tramresponse

The client sends a request to port 4567 and the tram 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 4567 dangerous?

We have no specific security note for port 4567. 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 4567

ServicePortTransportDescriptionReferenceUpdated
tram 4567 TCP, UDP TRAM - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 4567, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4567'      # process listening on 4567
sudo lsof -nP -i :4567

macOS

sudo lsof -nP -i :4567

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4567 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4567
netstat -ano | findstr :4567

From another machine

nmap -p 4567 -sV <host>
sudo nmap -sU -p 4567 <host>
nc -zv <host> 4567

Block it in the firewall

sudo ufw deny 4567/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4567" -Direction Inbound -LocalPort 4567 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4567 used for?

Port 4567 is assigned by IANA to tram (TRAM).

Is port 4567 TCP or UDP?

Port 4567 is registered for TCP and UDP.

Is it safe to open port 4567?

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 4567 is open?

On Linux run "ss -ltnup 'sport = :4567'", on macOS "lsof -nP -i :4567", and on Windows "netstat -ano | findstr :4567" to see the local process. From another machine, "nmap -p 4567 <host>" shows whether it is reachable.

05 Related
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