I have set up Nginx on my server, and now want to allow it for php files too, i followed http://library.linode.com/web-servers/nginx/php-fastcgi/ubuntu-10.04-lucid step by step.
But for /etc/init.d/php-fastcgi start command it shows file not found. Please help me out.

php-fpmrather than the olderphp-fastcgimethods. It's quite a bit more robust. It's still based on fastcgi, but it's a process manager that can limit and look after itself better thanphp-fastcgi– Oli♦ Apr 8 '11 at 10:14