Debian Wi-Fi hotspot using CoovaChilli, FreeRadius, MySQL and daloRADIUS

I decide to create hotspot from my server to allow other connect to Internet for free. I used "Captive portal" solution based on these applications:

• CoovaChilli
• FreeRadius
• MySQL
• daloRADIUS

When somebody wants to connect to Internet using my wifi, the first page he can see is the register/login page (whatever page he wants to visit).
After registration/login he is able to connect to Internet.

So let's see how I did it.