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Captive portal An example of a captive web portal used to log onto a restricted network. A captive portal is a web page accessed with a web browser that is displayed to newly connected users of a Wi-Fi or wired network before they are granted broader access to network resources.
Using captive portals One of the most commonly used attacks under evil twins is a captive portal. At first, the attacker would create a fake wireless access point that has a similar Essid to the legitimate access point. The attacker then might execute a denial-of-service attack on the legitimate access point which will cause it to go offline.
A captive portal intercepts HTTP access to web pages, redirecting users to a web application that provides instructions and tools for updating their computer. Until their computer passes automated inspection, no network usage besides the captive portal is allowed. This is similar to the way paid wireless access works at public access points.
WiFiDog Captive Portal WiFiDog was an open source embeddable captive portal solution used to build wireless hotspots. It is no longer an active project after not being updated for several years. [1] WiFiDog consists of two components: the gateway and the authentication server.
Commercial hotspots A commercial hotspot may feature: A captive portal / login screen / splash page that users are redirected to for authentication and/or payment. The captive portal / splash page sometimes includes the social login buttons. A payment option using a credit card, iPass, PayPal, or another payment service (voucher-based Wi-Fi)
For authentication by smart-clients, Appendix D defines the Smart Client to Access Gateway Interface Protocol, which is an XML-based protocol for authentication. Smart-client software (and devices that use it) use this so-called WISPr XML to seamlessly login to HotSpots without the need for the user to interact with a captive portal.
The captive portal mechanism used by many WiFi providers: a user wants to access the Internet and opens a browser. The NAS detects that the user is not currently authorized to have access to the Internet, so the NAS prompts the user for their username and password.
Neighbornode is a captive portal on a residential Wi-Fi hotspot, containing a message board. It is designed to help neighbors who share an internet connection know each other better. [1] The message board can only be accessed within range of the hotspot. Individual Neighbornodes can be linked together to create a supernode, vaguely like Fidonet.
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