easily adding launchpad ppa on ubuntu

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:<repository-name>

example (installing php5-fpm on ubuntu lucid): 
sudo add-apt-repository ppa:brianmercer/php

setup apache2+fastcgi+php-fpm on ubuntu 12.04 precise

install apache2 (worker) + fastcgi + php5-fpm di ubuntu 12.04 (x64):


:~$ sudo aptitude update && sudo aptitude safe-upgrade

/* mulai dgn apache */
:~$ sudo apt-get install apache2

/* install libapache2-mod-fastcgi dari multiverse */
:~$ wget http://mirror.informatik.uni-mannheim.de/pub/linux/distributions/ubuntu/pool/multiverse/liba/libapache-mod-fastcgi/libapache2-mod-fastcgi_2.4.7~0910052141-1_amd64.deb
:~$ sudo dpkg -i libapache2-mod-fastcgi_2.4.7~0910052141-1_amd64.deb

/* install komponen yang diperlukan */
:~$ sudo apt-get install php5-fpm php5-mcrypt php5-cli php5-curl php5-gd php5-mysql mysql-server

/* setup handler di /etc/apache2/conf.d/00fastcgi */

<ifmodule mod_fastcgi.c>
  Alias /php5 /var/www/fastcgi/php5
  AddHandler php-script .php
  FastCGIExternalServer /var/www/fastcgi/php5 -socket /var/run/php5-fpm.sock
  Action php-script /php5 virtual
</ifmodule>

 /* enabled apache modul actions & rewrite */
:~$ sudo a2dismod cgid
:~$ sudo a2enmod actions rewrite

/* buat folder /fastcgi di /var/www */
:~$ sudo mkdir /var/www/fastcgi

/* edit /etc/php5/fpm/pool.d/www.conf */
/* comment-out baris 'listen = 127.0.0.1:9000', tambahkan di bawahnya: */

;listen = 127.0.0.1:9000
listen = /var/run/php5-fpm.sock

/* restart apache + php-fpm */
:~$ sudo /etc/init.d/apache2 restart
:~$ sudo /etc/init.d/php5-fpm restart

/* panggil fungsi phpinfo() di /var/www/info.php */

 /* buka http://{ip-server}/info.php, cek 'Server API' - 'FPM/FastCGI' */