CyberHunter
Local dataset, no network
// Other services

Port 2499: UniControl

Port 2499 is assigned by IANA to unicontrol (UniControl).

2499

How unicontrol works

Other services
client:2499unicontrolresponse client:2499unicontrolresponse

The client sends a request to port 2499 and the unicontrol 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 2499 dangerous?

We have no specific security note for port 2499. 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 2499

ServicePortTransportDescriptionReferenceUpdated
unicontrol 2499 TCP, UDP UniControl - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2499, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2499'      # process listening on 2499
sudo lsof -nP -i :2499

macOS

sudo lsof -nP -i :2499

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2499 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2499
netstat -ano | findstr :2499

From another machine

nmap -p 2499 -sV <host>
sudo nmap -sU -p 2499 <host>
nc -zv <host> 2499

Block it in the firewall

sudo ufw deny 2499/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2499" -Direction Inbound -LocalPort 2499 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2499 used for?

Port 2499 is assigned by IANA to unicontrol (UniControl).

Is port 2499 TCP or UDP?

Port 2499 is registered for TCP and UDP.

Is it safe to open port 2499?

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 2499 is open?

On Linux run "ss -ltnup 'sport = :2499'", on macOS "lsof -nP -i :2499", and on Windows "netstat -ano | findstr :2499" to see the local process. From another machine, "nmap -p 2499 <host>" shows whether it is reachable.

05 Related
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