Can https proxies access http

Can https proxy access http, this is a common network problem. In our daily use of the Internet, we often encounter some need to use proxy servers, and https proxy and http proxy is one of the most common two types. So, for the relationship between the two proxy servers, and https proxy can access http, let's unveil the mystery of them together!

First, recognize https proxy and http proxy

First, let's understand the basic concepts of https proxy and http proxy respectively. https proxy is a proxy server that communicates using SSL encryption protocol at the transport layer, which provides security and privacy protection for the communication between the client and the target server. The http proxy, on the other hand, is a proxy server that communicates at the application layer, and is mainly used for caching, filtering, and logging network requests.

Second, https proxy and http proxy compatibility issues

So, is there a compatibility issue between https proxies and http proxies? To be honest, this is really a question worth thinking about. Since https proxies use SSL encryption protocol while http proxies are not encrypted, https proxies can't directly access the services of http proxies in some special cases.

Well, to solve this problem, we can configure some special rules on the https proxy server so that it can forward http requests. In this way, the https proxy will be able to access the http content. However, it should be noted that in this case, both the http request and the http response are transmitted via https, and although some additional processing will be done in the transmission process, it basically won't have too much impact on normal network communication.

III. Sample Code Demonstration

To better illustrate the problem, let's look at a specific example code. First, we need to install an https proxy server, such as the commonly used Squid proxy server. Then, add the following configuration to Squid's configuration file:

“`
http_port 3128
https_port 3129 intercept
http_port 3129 accel defaultsite=[target server address]
“`

In this way, the Squid proxy server can listen on both port 3128 and port 3129, forwarding http requests to the https port for processing. In the configuration file, accel means acceleration mode, intercept means interception mode, and defaultsite means target server address.

Finally, save the configuration file and restart the Squid proxy server. Next, we can use the https proxy server to access http content. For example, we can use the curl command to send an http request:

“`
curl -x https://[https proxy server address]:3128 http://[target server address]
“`

Through the above steps, we have successfully realized the function of accessing http content through https proxy. Of course, the specific configuration method may be different because of the different proxy servers, please modify according to the actual situation.

IV. Summary

Through the above introduction and sample code demonstration, we understand the relationship between https proxy and http proxy and how to realize the function of https proxy to access http content. Although there are some compatibility problems between https proxy and http proxy, we can solve this problem well with some special configurations and rules.

In a nutshell, the https proxy server needs some extra processing when accessing http content, but it doesn't affect normal network communication. So, when we encounter https proxy can not access http situation, you may want to try the above sample code, I believe that can bring us some inspiration and help.

However, it should be reminded that in the actual network environment, the use of https proxies and http proxies should be selected based on specific needs and security considerations. Reasonable use of proxy servers can improve the security and stability of the network, but also better protect personal privacy. So, let's use https proxy and http proxy, reasonable planning and flexible use, for our network life to bring more convenience and fun it!