Proxy server settings

To set up a proxy server, you must first know the proxy server address and port number, and then fill in the corresponding address and port number in the proxy server settings field of IE or NC. Suppose we have a proxy server whose address is Proxy.net.net and the port number is 3000. The configuration method in IE is to use the View menu Internet Options /Connections /Proxy Server, and then in front of the Internet option through the proxy server. In the box, type the address of the proxy server in the address box. In this example, assume that the proxy server address is proxy.net.net, and then fill in the port number 3000 in the port box, click the application button at the bottom. Then click OK and the setup is complete. The next time you use IE, users will find that IE always connects to the proxy server no matter what website you browse. With NC, the settings are a bit more complicated. Use the Preferences menu item under the edit menu, then select Proxies under Advanced. In this case, select the second Manral Proxy configuration in the Proxies option on the right, and then click the View… button on the right. The proxy server configuration interface will appear. Fill in the corresponding contents in the proxy server address and port number field, click OK, return to the parameter setting window, and then click OK, the proxy server setup work is completed. When the customer browses the webpage again, it will automatically send an application to the proxy server you set up and get the data. When browsing the website, both IE and NC can clearly see the first proxy in the browser status bar. The process of connecting the server to the target website.

However, don't confuse Proxy Server with Router. Proxy Server is a service software built on the application layer, while Router is a network device or a computer. It works on IP. Layered, the data is forwarded after it reaches the IP layer. Generally, a Proxy Server works on a computer with both MODEM and network card. Different Proxy Server softwares provide different services, and generally provide common services such as WWW and FTP. Each airliner on the intranet must have a separate IP address, and configure the port that uses the Proxy Server and points to the Proxy Server IP address and service in the "Control Panel-Internet Items""Connection" number. When the Proxy Server starts, it will use Winsock.dll to open a specific service port and wait for the request from the guest. When the Proxy Server's MODEM dials up, your Proxy Server will work. When you make a connection request in your IE, your airliner sends the packet directly to the Proxy Server. When the server captures the IP packet, it first analyzes what request it is. If it is an HTTP request, the Proxy Server will Your ISP sends an HTTP request. When the Proxy Server receives a response, it forwards the IP packet to the internal network, and your client will get the IP packet. In addition, your Proxy Server can also be used as a good firewall. For details, please refer to your Proxy Server readme file.

When you access the Internet's web server, do you know how much personal information is leaked to others? In the process of accessing the Internet, the Web browser will at least send more than 20 information about you personally to the Web server without your knowledge. If this personal information is transmitted to a well-known website or a large enterprise web server, there will be no major problems. It is deeply disturbing if it is transmitted to a web server where the website is not clear. The information that the web browser transmits to the web server is, in jargon, the "environment variable". The main contents are: (1) the IP address (REMOTE_A DDR) and host name (REMOTE_HOST) assigned to the computer; (2) the port number (REMOTE_PORT) used by the web browser; (3) the product name of the web browser ( HTTP_USER_AGENT); (4) The latest web address (HTTP_REFERER) of the websites visited.

The above items do not include personal information such as email addresses and names, but the IP address and host name in (1) are hard to be assured in terms of security, but what method is adopted? Can you cover up your IP address?

It is actually very simple to solve this problem. Just access the web server through a proxy server. The role of the proxy server is that it can accept access requests from various terminals for the web server. In the enterprise network, the proxy server is placed on a part of the company's internal LAN and the Internet. When dialing the Internet, you can use the proxy server provided by the Internet provider.