Destination of proxies and NAT

A proxy server is designed to mediate between a workstation and a worldwide network.

The proxy computer passes user requests through itself and then returns the results received from Inetrnet. This is a kind of “trustee”, contributing to the simultaneous access of all machines on the local network to the Internet. At the same time, the administrator setting up the grid is relieved of the need to assign an IP address to each individual point, build a complex routing scheme, and contact the provider for an additional (usually paid) service.

In addition to unnecessary troubles and unjustified high cost with methods that, fortunately, are already a thing of the past, the level of data security in LAN is lost, making each computer a potential target for virus attacks and hacker hacks. In addition, due to the lack of centralized management, the administrator will have to worry about the control of each individual station. And, by the way, with the second method of setting the LAN access to the Internet, you also need an additional program to the main computer, which will route packets, but, unlike proxies, transmitting real IP-clients of clients. Continue reading →