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// Other services

Port 5419: DJ-ICE

Port 5419 is assigned by IANA to dj-ice (DJ-ICE).

5419

How dj-ice works

Other services
client:5419dj-iceresponse client:5419dj-iceresponse

The client sends a request to port 5419 and the dj-ice 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 5419 dangerous?

We have no specific security note for port 5419. 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 5419

ServicePortTransportDescriptionReferenceUpdated
dj-ice 5419 TCP, UDP DJ-ICE - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5419, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5419'      # process listening on 5419
sudo lsof -nP -i :5419

macOS

sudo lsof -nP -i :5419

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5419 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5419
netstat -ano | findstr :5419

From another machine

nmap -p 5419 -sV <host>
sudo nmap -sU -p 5419 <host>
nc -zv <host> 5419

Block it in the firewall

sudo ufw deny 5419/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5419" -Direction Inbound -LocalPort 5419 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5419 used for?

Port 5419 is assigned by IANA to dj-ice (DJ-ICE).

Is port 5419 TCP or UDP?

Port 5419 is registered for TCP and UDP.

Is it safe to open port 5419?

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 5419 is open?

On Linux run "ss -ltnup 'sport = :5419'", on macOS "lsof -nP -i :5419", and on Windows "netstat -ano | findstr :5419" to see the local process. From another machine, "nmap -p 5419 <host>" shows whether it is reachable.

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