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📤 UDP Port Monitor

The UDP monitor sends a UDP packet to a host:port and optionally checks for a response.


🎯 Ce Qu'il Fait

  • Sends a UDP datagram to the target host and port
  • Optionally sends custom data
  • Optionally checks for expected data in the response
  • Measures response time

⚙️ Configuration

ParametreDescriptionExemple
NameA friendly nameDNS Server UDP
Host / IPTarget hostname or IP10.0.0.2
PortUDP port number53
Send DataData to send(optional)
Expect DataExpected response(optional)

⚠️ Note Importante

attention

UDP is connectionless. Unlike TCP, UDP doesn't establish a connection. If the target doesn't respond, it might mean the port is open but the service doesn't send replies, OR the port is closed. UDP monitoring is inherently less reliable than TCP monitoring for this reason.


💡 Quand Utiliser

  • Game servers (many use UDP)
  • VoIP services
  • DNS servers (port 53)
  • Custom UDP-based protocols