Nginx Proxy Pas

Most often it is used to substitute your real IP address. An example of when this is needed: watching shows on Netflix that are only available to US users. A proxy can be used to make a user logging in from anywhere in the world will be identified by the IP address as a US user. Another option is to test your site through a local web server. A proxy in this case is used to intercept all the traffic in order to analyze it further for errors and failures.

If your ISP blocks you from downloading torrents, turning on your proxy server is the easiest way around the blockage. How exactly this is done depends on the torrent client you are using. For example, in Qbittorrent you need to go to settings, open "Network" tab, check "Proxy-server" and manually specify its settings. The same way uTorrent is configured.

A DNS proxy, also known as a DNS proxy server or DNS forwarder, is a specialized type of proxy server that intercepts and processes Domain Name System (DNS) queries. DNS proxies are responsible for translating human-readable domain names into IP addresses, which are used by devices to access websites and other online resources.

DNS proxies act as an intermediary between a client (e.g., a web browser, operating system, or application) and a DNS resolver (e.g., an ISP's DNS server or a public DNS server like Google DNS or Cloudflare DNS).

You can check the validity of proxies by using special software and a proxy checker. These tools not only check if the proxy is working, but also inform you about possible blocking by various platforms and social networks. Online services (checkers) also provide information related to ping, speed, proxy anonymity level, and geo. The combination of all these data allows for the most objective assessment of a proxy server's performance.

You can check it with the ping command from the command line in Windows. It is enough to enter it, with a space - the data of the proxy server (including the number of the port used) and press Enter. The reply message will tell you whether or not you have received a reply from the remote server. If not, the proxy is unavailable, respectively.