A delegate server, or simply a substitute, is a computer that acts as an go-between between the narcotic addict and the target server. First, the client connects to the factor server and requests the required resource located on another server. After exempli gratia, email or html page. The proxy then either connects to the specified server and obtains the resource from it, or returns the resource from its own cache.

Companies privilege consumption proxies to protect guarantee, look up network performance, and access “unlikely” resources. Individuals use proxies to anonymize see trade or avoid access restrictions.

Proxy approach
Surrogate operation
When talking more a delegate, we usually mean a direct delegate server. Welcome's imagine that we are making a demand, representing example, fatiguing to move out to GitHub - document the URL, impel Enter. The surrogate does not stick us to GitHub instantly, but intercepts the reference and updates the demand constituents by way of removing the incoming IP and changing the header. As a d‚nouement develop, GitHub believes that the apply for came from another computer and sends the of the utmost importance information not to us, but to the factor server. The surrogate takes the GitHub information, verifies and sends the figures to our computer.

How are representative servers used?
Plain proxy uses:

increasing network care by encrypting requests;
preventing the interception of intimate message;
blocking malicious sites and advertising;
caching sites to keep proxy việt movement;
monitoring the use of a network channel;
lands blocking;
monitoring and logging интернет requests;
testing интернет resources when accessed from different IPs.
You can suggest your options in the comments to the publication.

What are the types of representative servers?
How a delegate server works: the simplest reason achievable
See-through substitute is the simplest group; the proxy server settings are not stable registered in the browser. A transparent proxy simply intercepts incoming HTTP traffic. The owner gets the feeling that he is surfing the Internet without a surrogate server. Use lawsuit: filtering diversion websites in an educational network.

An anonymous substitute never transmits the patient's IP direct to the end resource. A good choice if you don't lack targeted advertising to chase you or your location. A high anonymity delegate does not telegraph any IP lecture or in person evidence and does not neutral categorize itself as a proxy. During enterprise, the IP talk to changes periodically - this allows on paramount confidentiality. The TOR browser uses this type of proxy server. Because IP changes, it is bloody obstructive to trace the outset of requests.