It is a technology that allows devices on separate networks to communicate securely by creating a dedicated path between each other over the Internet (known as a tunnel). Devices connected within this tunnel form their own private network.
VPN (Virtual Private Network)
VPN Technology
PPP
PPTP (Point-to-Point Tunneling Protocol)
IPSec (Internet Protocol Security)
This technology is used by PPTP to allow for authentication and provide encryption of data. VPNs work by using a private key and public certificate (similar to SSH). A private key & certificate must match for you to connect.
This technology is not capable of leaving a network by itself (non-routable).
PPP
A technology that allows the data from PPP to travel and leave a network.
PPTP
encrypts data using the existing Internet Protocol (IP) framework.
IPSec
What VPN technology only encrypts & provides the authentication of data?
PPP
What VPN technology uses the IP framework?
IPSec
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What Is Networking?16
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Introducing LAN11
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A Primer on Subnetting11
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ARP9
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DHCP9
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OSI Model4
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Layer 1 - Physical3
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Layer 2 - Data Link5
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Layer 3 - Network4
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Layer 4 - Transport14
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Layer 5 - Session3
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Layer 6 - Presentation4
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Layer 7 - Application3
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What are Packets and Frames8
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TCP/IP (The Three-Way Handshake)20
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UDP/IP12
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Ports 10114
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Introduction to Port Forwarding2
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Firewalls 1018
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VPN Basics7
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LAN Networking Devices5
