When working via wired communication channels (using the Internet), to establish a secure data exchange channel between the client's equipment and the CENTO server, it is recommended to use a secure VPN channel based on the OpenVPN protocol.
To implement a VPN channel based on the OpenVPN protocol, the client must have a router that supports the OpenVPN protocol (supported by most modern routers).
The following files are provided to the client for connection:
- ca.crt - public certificate of the certification authority
- client.crt - public client encryption certificate
- client.key - private key for the client certificate
- auth.cfg - file containing the username and password
- client.ovpn - OpenVPN configuration file
To ensure security, the client.crt, client.key, and auth.cfg files are created individually for each client.