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// Other services

Port 20034: NetBurner ID Port

Port 20034 is assigned by IANA to nburn_id (NetBurner ID Port), nburn-id (NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id".).

20034

How nburn_id works

Other services
client:20034nburn_idresponse client:20034nburn_idresponse

The client sends a request to port 20034 and the nburn_id service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 20034 dangerous?

We have no specific security note for port 20034. 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 20034

ServicePortTransportDescriptionReferenceUpdated
nburn_id 20034 TCP, UDP NetBurner ID Port - 2003-11
nburn-id 20034 TCP, UDP NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id". - 2003-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 20034, and is it reachable?

Linux

sudo ss -ltnup 'sport = :20034'      # process listening on 20034
sudo lsof -nP -i :20034

macOS

sudo lsof -nP -i :20034

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 20034 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 20034
netstat -ano | findstr :20034

From another machine

nmap -p 20034 -sV <host>
sudo nmap -sU -p 20034 <host>
nc -zv <host> 20034

Block it in the firewall

sudo ufw deny 20034/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 20034" -Direction Inbound -LocalPort 20034 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 20034 used for?

Port 20034 is assigned by IANA to nburn_id (NetBurner ID Port), nburn-id (NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id".).

Is port 20034 TCP or UDP?

Port 20034 is registered for TCP and UDP.

Is it safe to open port 20034?

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 20034 is open?

On Linux run "ss -ltnup 'sport = :20034'", on macOS "lsof -nP -i :20034", and on Windows "netstat -ano | findstr :20034" to see the local process. From another machine, "nmap -p 20034 <host>" shows whether it is reachable.

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