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// Other services

Port 2919: roboER

Port 2919 is assigned by IANA to roboer (roboER).

2919

How roboer works

Other services
client:2919roboerresponse client:2919roboerresponse

The client sends a request to port 2919 and the roboer 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 2919 dangerous?

We have no specific security note for port 2919. 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 2919

ServicePortTransportDescriptionReferenceUpdated
roboer 2919 TCP, UDP roboER - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2919, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2919'      # process listening on 2919
sudo lsof -nP -i :2919

macOS

sudo lsof -nP -i :2919

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2919 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2919
netstat -ano | findstr :2919

From another machine

nmap -p 2919 -sV <host>
sudo nmap -sU -p 2919 <host>
nc -zv <host> 2919

Block it in the firewall

sudo ufw deny 2919/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2919" -Direction Inbound -LocalPort 2919 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2919 used for?

Port 2919 is assigned by IANA to roboer (roboER).

Is port 2919 TCP or UDP?

Port 2919 is registered for TCP and UDP.

Is it safe to open port 2919?

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 2919 is open?

On Linux run "ss -ltnup 'sport = :2919'", on macOS "lsof -nP -i :2919", and on Windows "netstat -ano | findstr :2919" to see the local process. From another machine, "nmap -p 2919 <host>" shows whether it is reachable.

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