NAC

echo 'deb http://inverse.ca/downloads/PacketFence/debian jessie jessie' > /etc/apt/sources.list.d/packetfence.list
apt-key adv --keyserver keys.gnupg.net --recv-key 0x810273C4
apt-get update
apt-get install packetfence

https://mohammadthalif.wordpress.com/2010/12/14/list-of-open-source-captive-portal-software-and-network-access-control-nac/

Mohamed Thalib's Blog List of open source captive portal software and network access control (NAC) I have listed here some open source captive portal software and network access control (NAC) systems.

Open Source/Free * ChilliSpot * Wifidog * PacketFence * CoovaChilli * Utangle * pfSense * PepperSpot * Zeroshell * m0n0wall * Kattive * EasyHotSpot * GRASE Hotspot * BrazilFW * Alcasar * Closed Source/Paid * FirstSpot (for Windows) * antamedia (hotspot manager for windows) * polkaspots * MyHotspot * Whizzwifi * Facepoint * IronWIFI * Alepo WiFi Captive Portal

ChilliSpot

Wifidog

PacketFence

CoovaChilli

Utangle

pfSense

PepperSpot

Zeroshell

m0n0wall

Kattive

EasyHotSpot

GRASE Hotspot

BrazilFW

Alcasar

Closed Source/Paid

FirstSpot (for Windows)

antamedia (hotspot manager for windows)

polkaspots

MyHotspot

Whizzwifi

Facepoint

IronWIFI

Alepo WiFi Captive Portal

Disclaimer: I have collected the list of captive portals/firewalls when I was working on a network products, but no longer. So I rarely maintain this list and the list is here just a information sharing. If you found any thing is not correct kindly post it in comment, so I can correct it.