What is IPSec/SSL VPN?

IPSec (Internet Protocol Security) and SSL (Secure Sockets Layer)/TLS (Transport Layer Security) VPNs (Virtual Private Networks) are technologies used to create secure connections over a public network like the Internet. IPSec VPNs operate at the network layer, encrypting entire IP packets and authenticating the source. They're commonly used for site-to-site VPNs and secure remote access. SSL/TLS VPNs, often referred to as SSL VPNs for simplicity, operate at the transport layer. They use SSL/TLS protocols to encrypt traffic, typically through a web browser. They are frequently employed for remote access, providing a secure connection for users to access internal network resources via a web portal or client application.