Proxy server basically is a tool that hide your real identification and show you according to the server. Mostly people use Proxy server to hide themselves on internet. Proxy server is a bridge between your computer, pc and internet. If you want to search some pages and request to show them then, computer send the request to the proxy server and server send it to the web pages that you are demanding. The internet search it and send it to the server and server show you that object. On the web pages your real identity not be shown instead of website see the actual visitor the proxy server not your real identity.
Types of proxy servers:
This type of proxy server identifies itself as a proxy server and also makes the original IP address available through the http headers. The use of a transparent proxy will get you around simple IP bans. They are transparent in the terms that your IP address is exposed, not transparent in the terms that you do not know that you are using it.
This type of proxy server identifies itself as a proxy server, but does not make the original IP address available. This type of proxy server is detectable, but provides reasonable anonymity for most users.
This type of proxy server identifies itself as a proxy server, but make an incorrect original IP address available through the http headers.
High anonymity proxy:
This type of proxy server does not identify itself as a proxy server and does not make available the original IP address.
Can I use them?
It’s really beneficial for using it but you can be use it at your risk and you have to take permission from the owner otherwise it will be illegal. Here are some beneficial of proxy server.
Control internet usage:
One of the most important reasons why proxies are widely used in corporate networks is that they provide control over what employees are accessing and using on the Internet. For example, many companies ban certain websites so that they are not accessed by employees during work hours.
Proxy server can improve security:
Proxy servers may also have a role in improving security, especially when used in business networks. They can be set to block access to malicious websites that distribute malware and they can also provide encryption services so that your data is not easily sniffed by third-parties that want to get their hands on it
To speed up Internet surfing:
If use proxy server, all requests from client computers will reach the proxy server at first, if the proxy server has cached the required resources in its local hard disk before with the web cache function, clients will get feedback directly from proxy server, it will be more quickly than direct accessing.
To implement Internet access control like authentication for Internet connection, bandwidth control, on-line time control, Internet web filter and content filter etc.