Choose the server mode the OpenVPN® server will operate with.
4 modes are available:
• PSK: used to establish a point-to-point OpenVPN®
configuration. A VPN tunnel will be created with a server
endpoint of a specified IP and a client endpoint of specified
IP. Encrypted communication between client and server will
occur over UDP port 1194, the default OpenVPN® port.
• SSL: Authentication is made using certificates only (no
user/pass authentication). Each user has a unique client
configuration that includes their personal certificate and key.
This is useful if clients should not be prompted to enter a
username and password, but it is less secure as it relies only
on something the user has (TLS key and certificate).
• User Auth: Authentication is made using only CA, user and
password, no certificates. Useful if the clients should not
have individual certificates.
Less secure as it relies on a shared TLS key plus only
something the user knows (Username/password).
• SSL + User Auth: Requires both certificate and username /
password. Each user has a unique client configuration that
includes their personal certificate and key.
Most secure as there are multiple factors of authentication
(TLS Key and Certificate that the user has, and the
username/password they know).
Choose digest algorithm from the dropdown list, which will uniquely
identify the data to provide data integrity and ensure that the receiver
has an unmodified data from the one sent by the original host.