A substitute server, or altogether a substitute, is a computer that acts as an mediator between the purchaser and the quarry server. Key, the customer connects to the representative server and requests the required resource located on another server. On 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 privilege consumption proxies to protect security, improve network exhibit, and access “unlikely” resources. Individuals consume proxies to anonymize traffic or route access restrictions.
Delegate take care of
Factor technique
When talking about a proxy, we usually mean a guide delegate server. Let's imagine that we are making a demand, for example, dispiriting to move out to GitHub - enter the URL, smooth Enter. The substitute does not join us to GitHub instantly, but intercepts the connection and updates the call for content next to removing the arriving IP and changing the header. As a fruit, GitHub believes that the demand came from another computer and sends the essential information not to us, but to the substitute server. The surrogate takes the GitHub info, verifies and sends the evidence to our computer.
How are representative servers used?
Common proxy uses:
increasing network asylum past encrypting requests;
preventing the interception of confidential message;
blocking malicious sites and advertising;
caching sites to keep proxy tĩnh giá rẻ above;
monitoring the drink of a network channel;
lands blocking;
monitoring and logging web requests;
testing web 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 representative server works: the simplest excuse achievable
Transparent representative is the simplest classification; the proxy server settings are not balance out registered in the browser. A crystal clear proxy modestly intercepts incoming HTTP traffic. The owner gets the feeling that he is surfing the Internet without a representative server. Use case: filtering production websites in an eye-opening network.
An anonymous factor in no way transmits the client's IP direct to the end resource. A permissible chance if you don't require targeted advertising to track you or your location. A important anonymity representative does not transmit any IP oration or close matter and does not equal single out itself as a proxy. During project, the IP discourse changes periodically - this allows in compensation greatest confidentiality. The TOR browser uses this classification of proxy server. Because IP changes, it is extremely difficult to record the outset of requests.
