nginx

Next, I needed to tell nginx that when it sees a file ending with a ".php" suffix to use FastCGI:


location ~ \.php$ {
    try_files $uri =404;
    include /etc/nginx/fastcgi_params;
    fastcgi_pass   unix:/var/run/php5-fpm.sock;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME
 ↪/usr/share/nginx/html$fastcgi_script_name;
    }

The two most important lines here are fastcgi_pass, which must point to the socket file I've created, and fastcgi_param, which indicates where the FastCGI programs are to be located. In the above fastcgi_param directive, I'm indicating that files with a ".php" suffix in /usr/share/nginx/html will be executed in the right place.

Notice also the include line, which imports a huge number of directives having to do with FastCGI into the system. You can take a look at it, if you want, but I've been using FastCGI for many years and tend to treat many of the configuration options as something approaching black magic.

What's Next?

Now that you've seen that you can configure nginx with PHP, you can go in any of several directions. First, you could use PHP not only to create simple "hello, world" programs, but also to run real applications, such as those based on WordPress (which is written in PHP). Next month, I'll describe how you can connect nginx to WordPress for a robust and high-speed solution.

But, nginx can be used with languages other than PHP as well. Phusion Passenger, which I have discussed in the past, works not only with Apache, but also with nginx. The only issue is that because nginx must be recompiled when you add or remove (or update) a module, the installation can be a bit tricky.

The bottom line is that nginx, although it takes some getting used to for an old Apache user like me, turns out to be flexible, well documented and (of course) extremely efficient at handling Web traffic. If you're setting up a new Web server and think you might need to squeeze some more "oomph" out of your system, it's definitely worth looking into nginx.

Resources

nginx is a popular server, and as such, there are lots of sources for information about it. One of the best such sources is the official site of nginx run by the company that has been founded to develop and support it. From that site, you can read a great deal of high-quality documentation, including a Wiki with many user-submitted suggestions.

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