A surrogate server, or simply a proxy, is a computer that acts as an intermediary between the narcotic addict and the goal server. Key, the shopper connects to the delegate server and requests the required resource located on another server. For example, email or html page. The surrogate then either connects to the specified server and obtains the resource from it, or returns the resource from its own cache.
Companies use proxies to guarantee asylum, reform network bringing off, and access “isolated” resources. Individuals consume proxies to anonymize above or avoid access restrictions.
Proxy process
Surrogate process
When talking about a delegate, we inveterately assuredly a direct agent server. Welcome's assume that we are making a request, representing prototype, frustrating to go to GitHub - begin the URL, press Enter. The surrogate does not stitch us to GitHub straight away, but intercepts the joint and updates the demand contentment by removing the entering IP and changing the header. As a come about, GitHub believes that the demand came from another computer and sends the essential matter not to us, but to the factor server. The surrogate takes the GitHub dirt, verifies and sends the data to our computer.
How are agent servers used?
Common representative uses:
increasing network care by encrypting requests;
preventing the interception of classified dirt;
blocking malicious sites and advertising;
caching sites to protect proxy xoay бє©n danh freight;
monitoring the drink of a network path;
kingdom blocking;
monitoring and logging web requests;
testing интернет resources when accessed from disparate 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 simplification admissible
Transparent proxy is the simplest classification; the delegate server settings are not monotonous registered in the browser. A transparent delegate modestly intercepts entering HTTP traffic. The owner gets the atmosphere that he is surfing the Internet without a factor server. Put anyhow: filtering divertissement websites in an educational network.
An anonymous substitute at no time transmits the patron's IP approach devote to the objective resource. A good opportunity if you don't require targeted advertising to follow you or your location. A excessive anonymity proxy does not telegraph any IP lecture or close evidence and does not equalize single out itself as a proxy. During operation, the IP oration changes periodically - this allows for paramount confidentiality. The TOR browser uses this classification of agent server. Because IP changes, it is outrageously difficult to copy the source of requests.
