#Install php5-fpm on Debian Squeeze
vi /etc/apt/sources.list
and add :
deb http://packages.dotdeb.org stable all
deb-src http://packages.dotdeb.org stable all
apt-get update
wget http://www.dotdeb.org/dotdeb.gpg
cat dotdeb.gpg | sudo apt-key add -
apt-get install php5-cli php5-suhosin php5-fpm php5-cgi php5-mysql
/etc/init.d/php5-fpm start
netstat -plunt|grep php