¿Cómo habilito FastCGI en Ubuntu?

How do I enable FastCGI in Ubuntu?

Execute the following commands to install the latest available version of Apache web server and FastCGI module.

1. sudo apt update sudo apt install apache2 libapache2-mod-fastcgi.
2. sudo apt install python-software-properties sudo add-apt-repository ppa:ondrej/php.
3. apt update sudo apt install php7.2 php7.2-fpm.

The error message “Failed to read FastCGI header” means that when Apache was communicating with PHP-FPM, the PHP process did not respond properly. This error does not mean there is a problem with Apache.

Installing mod_fastcgi manually

1. Copy or move the mod_fastcgi distribution directory to /src/modules/fastcgi.
2. Add the FastCGI module to /src/Configuration.
3. From the /src directory, reconfigure and rebuild Apache.
4. Edit the httpd configuration files to enable your FastCGI application(s).
5. Stop and start the server.

Install mod_fcgid and PHP-FPM

1. Update your system’s Apt repositories.
2. Install mod_fcgid , PHP-FPM , and htop .
3. Load the mod_proxy and mod_proxy_fcgi modules by editing your main Apache configuration to add the lines included in the example.
4. Verify that the configuration is correct: sudo apache2ctl configtest.

Enable PHP-FPM

1. Enable the PHP-FPM service: Depending on your installation type, run the following commands:
2. Start PHP-FPM: sudo /opt/bitnami/ctlscript.sh start php-fpm.
3. Enable PHP-FPM configuration in Apache.
4. In the same file, disable the mpm_prefork module: #LoadModule mpm_prefork_module modules/mod_mpm_prefork.so.

FastCGI is a binary protocol for interfacing interactive programs with a web server. FastCGI’s main aim is to reduce the overhead related to interfacing between web server and CGI programs, allowing a server to handle more web page requests per unit of time.

CGI (Common Gateway Interface) is a web technology and protocol that defines a way for a web server (HTTP server) to interact with external applications, e.g. PHP. CGI is used as an interface between the web server and the additionally installed applications generating dynamic web content.

mod_fcgid is a high performance alternative to mod_cgi or mod_cgid, which starts a sufficient number instances of the CGI program to handle concurrent requests, and these programs remain running to handle further incoming requests.

On Windows:

1. Open Services in the Management Console: Start -> Run -> “services.msc” -> OK.
2. Select php-fpm from the list.
3. Rightclick and select restart.

As per other instructions paste the following into a new browseable php file on your webserver. Open the file you just edited in a web browser, If you see “FPM/FastCGI” next to Server API, you are now serving PHP with FastCGI!

Other sites that are running on nginx are not effected (they are not php based), so I just figured out it must be the fastcgi process after looking at the log files saying the upstream client 127.0.0.1 is not responding. How to I restart this? Is there a special log file for this fastcgi process?

Anyway restarting service is not a solution, you should find the problem why do the upstream is not responding. You may provide some logs to clarify the issue. Thanks for contributing an answer to Server Fault! Please be sure to answer the question. Provide details and share your research! But avoid …

I also found http://blog.starcklin.com/2013/08/install-mod-fastcgi-and-php5-fpm-on-ubuntu/ to be very informative and straightforward. Just run the following commands in a terminal one after the other. First install the necessary packages (I leave out php5 as this assumes it’s already installed, add it back in for a first time install).