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// Other services

Port 10020: Hardware configuration and maintenance

Port 10020 is assigned by IANA to abb-hw (Hardware configuration and maintenance).

10020

How abb-hw works

Other services
client:10020abb-hwresponse client:10020abb-hwresponse

The client sends a request to port 10020 and the abb-hw service answers.

Transport
TCP
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 10020 dangerous?

We have no specific security note for port 10020. 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 10020

ServicePortTransportDescriptionReferenceUpdated
abb-hw 10020 TCP Hardware configuration and maintenance - 2017-03-28
-10020-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 10020, and is it reachable?

Linux

sudo ss -ltnup 'sport = :10020'      # process listening on 10020
sudo lsof -nP -i :10020

macOS

sudo lsof -nP -i :10020

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 10020 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 10020
netstat -ano | findstr :10020

From another machine

nmap -p 10020 -sV <host>
nc -zv <host> 10020

Block it in the firewall

sudo ufw deny 10020/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 10020" -Direction Inbound -LocalPort 10020 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 10020 used for?

Port 10020 is assigned by IANA to abb-hw (Hardware configuration and maintenance).

Is port 10020 TCP or UDP?

Port 10020 is registered for TCP.

Is it safe to open port 10020?

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 10020 is open?

On Linux run "ss -ltnup 'sport = :10020'", on macOS "lsof -nP -i :10020", and on Windows "netstat -ano | findstr :10020" to see the local process. From another machine, "nmap -p 10020 <host>" shows whether it is reachable.

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