4.6 VPNs AND PROXIES

Question 1

VPN

Answer 1

Virtual Private Networks

A technology that allows for the extension of a private or local network to hosts that might not work on that same local network.

Question 2

TWO FACTOR AURHENTICATION

Answer 2

Two-factor authentication is a technique where more than just a username and password are required to authenticate.

Question 3

PROXY SERVICE

Answer 3

A proxy service is a server that acts on behalf of a client in order to access another service.

Proxies sit between clients and other servers, providing some additional benefit. Anonymity, security, content filtering, increased performance.

Question 4

WEB PROXY

Answer 4

Proxies specifically built for web traffic.

Question 5

REVERSE PROXY

Answer 5

A reverse proxy is a service that might appear to be a single server to external clients, but actually represents many servers living behind it.

Reverse proxies are now implemented in order to use hardware built specifically for cryptography to perform the encryption and decryption work so that the web servers are free to just serve content.