PNS is a proxy gateway. It separates the connection between the client and the server into two separate connections: one between the client and PNS, and another between PNS and the server. PNS receives the incoming client connection requests, inspects them, and transfers them to the server. PNS also receives the replies of the server, inspects them, and replies to the client instead of the server. That way PNS has access to the entire network communication between the client and the server, and can enforce protocol standards and the security policy of your organization (for example, permit only specific clients to access the server, or enforce the use of strong encryption algorithms in the connection).
Proxying can take two basic forms:
Nontransparent: In case of nontransparent proxying, client connections target PNS instead of their intended destination.This solution usually requires some client-side setup, for example, to configure the proxy settings in the web browser of the client.
Transparent: To integrate to your network environment easily, PNS can operate transparently. In case of transparent proxying, the client connections target the intended destinations server, and PNS inspects the network traffic directly. The client and the server do not detect that PNS mitigates their communication. In case of transparent proxying, no client side setup is required. This means that you do not have to modify the configuration of your clients and servers when PNS is integrated into your network: PNS is invisible for the end user.
Published on June 04, 2020
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