What is a prerequisite for configuring SSL VPN on FortiGate?

The prerequisite for configuring SSL VPN on FortiGate involves having a valid digital certificate installed on the FortiGate device. The SSL VPN uses SSL/TLS protocols to establish a secure encrypted connection over the Internet. A valid digital certificate is essential because it allows clients to verify the identity of the server they are connecting to, thus ensuring a secure connection. Without a valid certificate, clients will encounter trust issues and may not be able to establish a successful VPN connection.

The presence of a valid digital certificate also enables features such as user authentication and strengthens the overall security posture of the VPN, as it facilitates secure communication between endpoints. By establishing trust through a recognized certificate, potential vulnerabilities are mitigated, providing a safer experience for users accessing the network remotely.