Authentication in captive portals

Authentication in captive portals

Network interfaces, including WiFi interfaces, can perform authentication at the interface level using a captive portal — an HTML form that requests the user’s name and password. A captive portal is useful where all users connecting to the network interface must authenticate. Optionally, on a WiFi interface, the captive portal can be combined with a terms of service disclaimer to which the user must agree before gaining access.

Once successfully authenticated, the user’s session passes to the firewall.


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Michael Pruett, CISSP has a wide range of cyber-security and network engineering expertise. The plethora of vendors that resell hardware but have zero engineering knowledge resulting in the wrong hardware or configuration being deployed is a major pet peeve of Michael's. This site was started in an effort to spread information while providing the option of quality consulting services at a much lower price than Fortinet Professional Services. Owns PacketLlama.Com (Fortinet Hardware Sales) and Office Of The CISO, LLC (Cybersecurity consulting firm).

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