Good writeup, but I&#x27;d disagree with the first Takeaway where it mentions WiFi redirects being done via a DNS hijacking. That is one way to do it, but it&#x27;s rare in my experience. Far more common is simply redirecting TCP 80 traffic to a webserver that issues a re-direct to the captive portal URL.<p>Source: I&#x27;ve operated various public WiFi networks since 2001