Network Access/Admission Control (NAC)
Network Access/ Admission Control prevents an internal Network of an organization from access by malicious endpoints.
In this video, I gave an overview of NAC including background of technology and NAC solutions by different vendors.
Video Script
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Introduction
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Background
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1990s, Perimetric defense (Firewall)
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2000, Defence in Depth
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2010, Security Information and event management (SEIM)
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now-a-days advanced persistent threat (APT)
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Network Access/ Admission Control (NAC)
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IEEE 802.1X (port based NAC)
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supplicant
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authenticator
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Authentication Server
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IEEE 802.1X working
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IEEE 802.1X Advantages
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IEEE 802.1X Issues
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NAC Benefits
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NAC Security (EAP-TLS)
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NAC Client
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NAC should support
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NAC Pre-admission control
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NAC Captive portal
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NAC LAN assignment
0:07:34.460,0:07:42.220
NAC ARP Restriction
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Context based access
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NAC Post Admission Control (NOC/ SOC)
0:09:06.000,0:09:09.580
NAC Products
References
https://en.m.wikipedia.org/wiki/Netwo...
Gartner NAC Ranking
https://www.gartner.com/reviews/marke...
Open source NACs
https://www.researchgate.net/publicat...
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