Watching Ports

with the internet components in Delphi4

Usual desktio firewalls can defense against port scans and attacks,
but they don't say, what the client has tried to send.

With this little programm you can watch as many ports as you like,
When a client tries to connect, it accepts the connection and displays
the data received.


This example can
  • watch up to 100 ports at one time
  • accept TCP/IP connections and display any received text
  • respond with text messages
You can test NetCheck with the test client.