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// Other services

Port 2989: ZARKOV Intelligent Agent Communication

Port 2989 is assigned by IANA to zarkov (ZARKOV Intelligent Agent Communication).

2989

How zarkov works

Other services
client:2989zarkovresponse client:2989zarkovresponse

The client sends a request to port 2989 and the zarkov 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 2989 dangerous?

We have no specific security note for port 2989. 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 2989

ServicePortTransportDescriptionReferenceUpdated
zarkov 2989 TCP, UDP ZARKOV Intelligent Agent Communication - 2014-02-17

// source: IANA service name and port number registry

03 Check it

Which program uses port 2989, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2989'      # process listening on 2989
sudo lsof -nP -i :2989

macOS

sudo lsof -nP -i :2989

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2989 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2989
netstat -ano | findstr :2989

From another machine

nmap -p 2989 -sV <host>
sudo nmap -sU -p 2989 <host>
nc -zv <host> 2989

Block it in the firewall

sudo ufw deny 2989/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2989" -Direction Inbound -LocalPort 2989 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2989 used for?

Port 2989 is assigned by IANA to zarkov (ZARKOV Intelligent Agent Communication).

Is port 2989 TCP or UDP?

Port 2989 is registered for TCP and UDP.

Is it safe to open port 2989?

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 2989 is open?

On Linux run "ss -ltnup 'sport = :2989'", on macOS "lsof -nP -i :2989", and on Windows "netstat -ano | findstr :2989" to see the local process. From another machine, "nmap -p 2989 <host>" shows whether it is reachable.

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