Do no longer confuse a proxy server with a NAT (Network Address Translation) tool. A proxy server connects to, responds to, and receives visitors from the internet, performing on behalf of the client computer, while a NAT tool transparently adjustments the origination address of visitors coming via it before passing it to the internet.
Reverse Proxy Technology
The most basic characteristic of an SSL VPN is its potential to get hold of user requests and relay them to internal servers. This gateway-type function is referred to as reverse proxying.
Technically speaking, a reverse proxy server is a laptop that sits among an inner internet server and the Internet and looks to external clients as if it have been the authentic internet server. External users cope with the reverse proxy questioning that it's miles servicing their requests while in fact it in reality relays their requests to a distinctive server generally located on the inner network. Responses paintings in a comparable manner-the proper server responds to the reverse proxy, which in turn relays the reaction to the user.
Reverse proxies are frequently deployed as part of load-balancing schemes, as a part of a layered security strategy, or actually to hide real servers from users for protection reasons.