A security analyst received the following requirements for the deployment of a security camera solution:
* The cameras must be viewable by the on-site security guards.
+ The cameras must be able to communicate with the video storage server.
* The cameras must have the time synchronized automatically.
* The cameras must not be reachable directly via the internet.
* The servers for the cameras and video storage must be available for remote maintenance via the company VPN.
Which of the following should the security analyst recommend to securely meet the remote connectivity requirements?