FIGURE 36.2 Comparing a proxy connection to a VPN connection.
So, why do we care? The differences between proxy servers and a VPN make
the most difference when it comes time for implementation. Which will best
serve your needs? Here are some facts to help you decide:
Proxy servers are usually cheaper and easier to set up. VPNs generally
cost more and are more difficult to set up, but after they’re set up, they’re
easy to use and are more secure.
A single proxy server can service hundreds or thousands of users, but
usually a VPN is designed for one connection that is specific to one
remote computer and a secure host. (Yes, exceptions exist, but they are
beyond the scope of this introductory material.)
Each piece of software that uses a proxy must be set up separately. Using
a web browser is the most common way to use a proxy server, but other
types of software can also be configured to use proxies. When a VPN is