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Cache Fast CGI On Server Not Browser Nginx
What is Fast CGI?
FastCGI is an open source protocol created to allow web applications to run on external web servers. It is designed to provide an enhanced user experience by making web applications run faster and without resource contention. By offloading some of the processing from the web server to a Fast CGI-enabled server, it allows users to run complex web applications without compromising the speed or usability of their website.
Fast CGI is based on the Common Gateway Interface (CGI), a low-level protocol used to transfer client and server data between web servers and web applications. Fast CGI is an extension of CGI designed for faster execution of dynamic content. It is a lightweight and efficient protocol, as it does not have its own resources or interface. Instead, it uses the existing protocol of web server software and applications.
Fast CGI enables web applications to be executed in a separate process from the web server, making it faster and less resource intensive. This makes it an excellent option for applications such as content management systems (CMS) where content is changing rapidly and new content needs to be served quickly. Fast CGI is also the preferred choice for applications that require a large amount of concurrent users.
How Does Fast CGI Work?
The Fast CGI protocol works by transferring data between the web server and the web application. It does this by using a series of requests and responses. In a request, the web server sends the application a request for some data and the application responds with that data. The advantage of this system is that it allows the web server to run the application in its own process, using its own resources and not consuming any resources from the web server.
In order to use Fast CGI, web servers must have the necessary modules installed. Most web servers support the necessary modules, however, it is important to check the specific web server documentation to ensure compatibility. It can also be useful to research the web applications that will be used to make sure that they are compatible with Fast CGI.
Benefits of Fast CGI
There are several benefits to using a Fast CGI-enabled server. First, since Fast CGI does not depend on the web server’s resources, web applications can run much faster. This is especially important for applications with large amounts of dynamic content or a large amount of users. Additionally, since the application is running in its own process it does not take up web server resources, improving the performance of all other web applications.
The Fast CGI protocol is also highly platform independent, meaning that applications can be moved from one server to another without any issues. Additionally, since Fast CGI is open source, web applications can be ported to any operating system without any additional programming. Finally, Fast CGI is highly secure, as all requests are handled directly by the application and all data is encrypted during transmission.
Configuring Fast CGI On Nginx Servers
Nginx servers can be easily configured to use Fast CGI. First, the correct Fast CGI module must be installed on the server. Once the module is installed, the server’s configuration can be updated to enable Fast CGI. This can be done by editing the nginx.conf file and adding the following lines:
location ~ .php$ {
fastcgi_pass 127.0.0.1:9000;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
Finally, the web server should be restarted to enable the new configuration. Once restarted, the web application should be tested to ensure that it is correctly using Fast CGI. It is important to remember that Fast CGI is only supported by some web applications and it may not be available for all web applications. These applications must be tested individually to ensure compatibility.
Caching Fast CGI On Server
For many web applications, it may be desirable to cache the data generated by Fast CGI. Caching is the process of storing data in memory, making it available for quick retrieval when needed. Caching can improve the performance of web applications, as data can be retrieved quickly with minimal load on the server. Caching is especially useful for complex web applications with a lot of dynamic content. It is also helpful for applications that need to serve data to many users simultaneously.
To cache Fast CGI data on the server, Nginx provides the ngx_fastcgi_cache module. This module extends the functionality of Fast CGI by allowing the web server to cache the output of the web applications and serve the data, instead of re-querying the application for each request. Caching can greatly improve performance and reduce the load on the web server.
The Nginx ngx_fastcgi_cache module is an open source module and is easy to configure. First, the module must be downloaded and installed. It is important to ensure that the module is compatible with the version of Nginx that is running on the server. Once the module is installed, the Nginx configuration must be updated to enable the caching of Fast CGI data.
Using Cache on Browser
Besides caching on the server, some web applications may require caching on the browser. Browser caching stores data in the web browser, which can improve performance by reducing the amount of data that must be downloaded from the server. It is especially useful for applications that use a lot of static content, such as images or JavaScript.
Browser caching is enabled by adding specific tags to the HTML code of the page. When a browser downloads a page, it will save any content that has been tagged for caching, meaning that the content will not have to be downloaded again. This can greatly reduce the amount of data that must be downloaded by the browser, resulting in improved performance.
It is important to note that browser caching is generally not used when using Fast CGI. This is because the data generated by Fast CGI is usually dynamic, and thus caching it on the browser would be pointless. Additionally, caching on the browser is generally not used with sensitive data, as it is possible for the data to be viewed by other users.
Conclusion
Fast CGI is a powerful and efficient open source protocol that can dramatically improve the performance of web applications. By running the application in its own process, Fast CGI can greatly reduce the resource requirements on the web server. Additionally, Fast CGI can be used to cache the output of the web application on the server, improving performance even further. Finally, browser caching can be used to further improve performance, though it is generally not used with Fast CGI applications.
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FAQs
Q: What is Fast CGI?
A: Fast CGI is an open source protocol created to allow web applications to run on external web servers. It is designed to provide an enhanced user experience by making web applications run faster and without resource contention.
Q: How does Fast CGI work?
A: Fast CGI works by transferring data between the web server and the web application. It does this by using a series of requests and responses. In a request, the web server sends the application a request for some data and the application responds with that data.
Q: What are the benefits of Fast CGI?
A: Fast CGI provides faster execution of dynamic content, is highly platform independent, and is highly secure. Additionally, it can be used to cache the output of web applications, improving performance.
Q: How do I configure Fast CGI on Nginx servers