I'm using hostApd to develop a captive portal. My machine provides à Wifi (password free), and I plan the clients to get a popup saying "hello". You know, like the popup of wifi providers, asking for credits or login...
(note: I want to open my machine local website when clients - iPad clients btw - connect the wifi. I don't care of making them pay or login).
How can I do such a thing, please ? One says the OS detects it by tryoing to ping google.com or so on, if not, it knows the portail is captive and display a html popup. Which url ? ...
Thanks