CyberHunter
Local dataset, no network
// Other services

Port 9020: TAMBORA

Port 9020 is assigned by IANA to tambora (TAMBORA).

9020

How tambora works

Other services
client:9020tamboraresponse client:9020tamboraresponse

The client sends a request to port 9020 and the tambora 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 9020 dangerous?

We have no specific security note for port 9020. 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 9020

ServicePortTransportDescriptionReferenceUpdated
tambora 9020 TCP, UDP TAMBORA - 2002-03

// source: IANA service name and port number registry

03 Check it

Which program uses port 9020, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9020'      # process listening on 9020
sudo lsof -nP -i :9020

macOS

sudo lsof -nP -i :9020

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9020 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9020
netstat -ano | findstr :9020

From another machine

nmap -p 9020 -sV <host>
sudo nmap -sU -p 9020 <host>
nc -zv <host> 9020

Block it in the firewall

sudo ufw deny 9020/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9020" -Direction Inbound -LocalPort 9020 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9020 used for?

Port 9020 is assigned by IANA to tambora (TAMBORA).

Is port 9020 TCP or UDP?

Port 9020 is registered for TCP and UDP.

Is it safe to open port 9020?

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 9020 is open?

On Linux run "ss -ltnup 'sport = :9020'", on macOS "lsof -nP -i :9020", and on Windows "netstat -ano | findstr :9020" to see the local process. From another machine, "nmap -p 9020 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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