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What is Proxy server?

Proxy server is the software installed on some network server. Proxy server sends all the requests made by the client and in turn replies without any modifications. Proxy server acts as a firewall server between the local client and the global server by providing network security, network control and caching requests. If your browser is configured to work through the proxy server then all your network traffic will go through that proxy server.

Schematic representation of a proxy server, where the computer in the middle acts as the proxy server between the other two.


Purposes of proxy server

A proxy server acts as a go-between for web browsers and the websites they access. When a web browser is configured to use a proxy server, all traffic from the web browser goes to the proxy server, which forwards traffic to the final destination. Both users and administrators have many reasons to use a proxy server.


An anonymous proxy server hides the originating IP of the web browser from the website. The website will see the IP of the proxy server instead of the user.


Proxy servers can cache data and images locally, thus allowing the web browser to fetch the data and images faster from slow websites.

Bypass Content Blocks

A web browser using a proxy server on the Internet can get around websites blocked by the local network administrator. The local network thinks the browsing is going to the proxy server instead of a prohibited site.

Web Browsing Access

At some installations, a locally installed proxy server protected by a username and password is required for permission to web browse.

Usage Monitoring

A proxy server can monitor the web browsing activity of its users since all traffic is logged on the proxy server.

How to setup your browser for proxy access


1. Click Options from the Tools menu.

2. Click the Advanced icon and then open the Network tab.

3. In the Connection area of the tab, click the Settings button to bring up the Connection Settings dialog box.

4. Click the Automatic proxy configuration URL radio button to make it the selected choice.

5. Enter this URL in the box beneath the radio button:

It's best to copy the URL from these instructions. Make sure not to include any spaces before or after the URL.

6. Click Reload and then click OK to close each of the dialog boxes you've opened.

• Select Tools => Internet Options.

• Select the Connections tab.

• If you are using LAN, click the LAN Settings button. If you are using Dial-up or Virtual

Private Network connection, select necessary connection and click the Settings button.

• Make sure the "automatically detect proxy settings" and "use a proxy automatic

configuration script" options are not checked.

• In the "Proxy Server" area, click the check box next to Use a proxy server ....

• If nessesary, enable "bypass proxy server for local addresses".

• Click the "Advanced" button and set Proxy Server address (proxy IP), proxy server port.

• Click OK

How to setup your browser for proxy access

There are 3 levels of HTTP proxies:

1. Transparent - these proxies are not anonymous. They don't hide IP-address of a client and let a web server know that you are surfing through a proxy server. The task of such proxies, as a rule, is information caching and/or support of Internet access for several computers via single connection. Such proxies are not applicable for security and privacy while surfing on net. You can use them only for network speed improvement.

2. Anonymous - these proxies don't show your real IP but change the request fields so it is very easy to detect that you are using proxy.

3. High Anonymous - these proxy servers do not pass an IP-address of a client and don't send any variables indicating that you are using proxy server to host and look like real browser.

What is a proxy chain?

A proxy chain is a connection of 2 or more proxy servers. Proxy way allows to work with any Internet service through a chain of SOCKS or HTTP(S) proxies. Using the program you can create proxy services with any number of proxy servers in the chain (supports HTTP, HTTPS, SOCKS4 and SOCKS5) to provide IP address security and tunnel Internet activity through proxy servers.


What is SOCKS?

SOCKS is a networking proxy protocol that enables hosts on one side of a SOCKS server to gain full access to hosts on the other side of the SOCKS server without requiring direct IP-reachability. SOCKS is often used as a network firewall, redirecting connection requests from hosts on opposite sides of a SOCKS server. The SOCKS server authenticates and authorizes requests, establishes a proxy connection, and relays data between hosts.


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