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// Other services

Port 2899: POWERGEMPLUS

Port 2899 is assigned by IANA to powergemplus (POWERGEMPLUS).

2899

How powergemplus works

Other services
client:2899powergemplusresponse client:2899powergemplusresponse

The client sends a request to port 2899 and the powergemplus 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 2899 dangerous?

We have no specific security note for port 2899. 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 2899

ServicePortTransportDescriptionReferenceUpdated
powergemplus 2899 TCP, UDP POWERGEMPLUS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2899, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2899'      # process listening on 2899
sudo lsof -nP -i :2899

macOS

sudo lsof -nP -i :2899

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2899 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2899
netstat -ano | findstr :2899

From another machine

nmap -p 2899 -sV <host>
sudo nmap -sU -p 2899 <host>
nc -zv <host> 2899

Block it in the firewall

sudo ufw deny 2899/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2899" -Direction Inbound -LocalPort 2899 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2899 used for?

Port 2899 is assigned by IANA to powergemplus (POWERGEMPLUS).

Is port 2899 TCP or UDP?

Port 2899 is registered for TCP and UDP.

Is it safe to open port 2899?

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 2899 is open?

On Linux run "ss -ltnup 'sport = :2899'", on macOS "lsof -nP -i :2899", and on Windows "netstat -ano | findstr :2899" to see the local process. From another machine, "nmap -p 2899 <host>" shows whether it is reachable.

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