CyberHunter
Local dataset, no network
// Other services

Port 4188: Vatata Peer to Peer Protocol

Port 4188 is assigned by IANA to vatata (Vatata Peer to Peer Protocol).

4188

How vatata works

Other services
client:4188vatataresponse client:4188vatataresponse

The client sends a request to port 4188 and the vatata 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 4188 dangerous?

We have no specific security note for port 4188. 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 4188

ServicePortTransportDescriptionReferenceUpdated
vatata 4188 TCP, UDP Vatata Peer to Peer Protocol - 2008-09-15

// source: IANA service name and port number registry

03 Check it

Which program uses port 4188, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4188'      # process listening on 4188
sudo lsof -nP -i :4188

macOS

sudo lsof -nP -i :4188

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4188 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4188
netstat -ano | findstr :4188

From another machine

nmap -p 4188 -sV <host>
sudo nmap -sU -p 4188 <host>
nc -zv <host> 4188

Block it in the firewall

sudo ufw deny 4188/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4188" -Direction Inbound -LocalPort 4188 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4188 used for?

Port 4188 is assigned by IANA to vatata (Vatata Peer to Peer Protocol).

Is port 4188 TCP or UDP?

Port 4188 is registered for TCP and UDP.

Is it safe to open port 4188?

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 4188 is open?

On Linux run "ss -ltnup 'sport = :4188'", on macOS "lsof -nP -i :4188", and on Windows "netstat -ano | findstr :4188" to see the local process. From another machine, "nmap -p 4188 <host>" shows whether it is reachable.

05 Related
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