When hosting our web applications, we often have one public IP address i. For example, one may wants to host three different web apps respectively for example1. How can we do that? You can if you really want to, but there are lots of tools and technologies that readily do this for you. In this tutorial, we walk you through how you can use nginx to proxy multiple web applications.
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What is a proxy server
Proxies and VPNs differ in nature, although they can provide some of the same services. A VPN routes all of the network traffic on a client computer through a tunnel to some other server computer. No individual application configuration is required. In contrast, using a proxy requires each application to be individually configured to ensure its traffic goes through the proxy. The intent of a VPN is to allow a remote client computer to access network resources in some other location as if it were physically located in the same office. One of those network resources can be access to the internet, which masks the IP address of the remote computer. A proxy is more limited in that it cannot provide access to remote resources, but it can mask your IP address and provide geo-obfuscation services.
Proxies and Virtual Private Networks (VPNs)
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In the days of firewalls, VPN services and the Tor application, practical methods of masking the IP address and speeding up the Internet, a proxy server is becoming indispensable for actively surfing the Internet. Many users use a proxy without really thinking about what it is, how it works and what functions it can perform. Below we will analyze what a proxy server is, where to get it and how to start using it. We will also focus on such points as the specifics of choosing a server and the differences between anonymous and regular types. The term proxy comes from the Latin "proxus" and means "next" or "substitute". It is a network communication interface that enables switching between two remote machines. There are basically two types of proxies: those that run locally on the network - this makes sense in companies, for example, to facilitate transmission over corporate Internet lines. And those provided by the provider. Although the former mainly serve as a cache, that is, they ensure that data does not need to be reloaded from the Internet every time, the provider's proxy server is especially interesting for everyday private use: it not only speeds up network access, but can also ensure your complete anonymity.