Virtual Private Networks (VPNs)

• Extend private networks across public networks
• Allow remote users to securely connect to an organization’s network
• Can be configured as site-to-site, client-to-site, or clientless VPNs

Site-to-Site VPN

• Connects two sites cost-effectively
• Replaces expensive leased lines
• Utilizes a VPN tunnel over the public internet
• Encrypts and secures data between sites
• Slower, but more secure

Client-to-Site VPN

• Connects a single host (e.g., laptop) to the central office
• Ideal for remote user access to the central network
• Options for full tunnel and split tunnel configurations

Clientless VPN

• Uses a web browser to establish secure, remote-access VPN
• No need for dedicated software or hardware client
• Utilizes HTTPS and TLS protocols for secure connections to websites

In addition to site-to-site and client-to-site VPNs, we have to decide whether we are going to use a full tunnel or split tunnel VPN configuration