CyberHunter
Local dataset, no network
// Other services

Port 2090: Load Report Protocol

Port 2090 is assigned by IANA to lrp (Load Report Protocol).

2090

How lrp works

Other services
client:2090lrpresponse client:2090lrpresponse

The client sends a request to port 2090 and the lrp 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 2090 dangerous?

We have no specific security note for port 2090. 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 2090

ServicePortTransportDescriptionReferenceUpdated
lrp 2090 TCP, UDP Load Report Protocol - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2090, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2090'      # process listening on 2090
sudo lsof -nP -i :2090

macOS

sudo lsof -nP -i :2090

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2090 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2090
netstat -ano | findstr :2090

From another machine

nmap -p 2090 -sV <host>
sudo nmap -sU -p 2090 <host>
nc -zv <host> 2090

Block it in the firewall

sudo ufw deny 2090/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2090" -Direction Inbound -LocalPort 2090 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2090 used for?

Port 2090 is assigned by IANA to lrp (Load Report Protocol).

Is port 2090 TCP or UDP?

Port 2090 is registered for TCP and UDP.

Is it safe to open port 2090?

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 2090 is open?

On Linux run "ss -ltnup 'sport = :2090'", on macOS "lsof -nP -i :2090", and on Windows "netstat -ano | findstr :2090" to see the local process. From another machine, "nmap -p 2090 <host>" shows whether it is reachable.

05 Related
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