Hacking Linux (Tips, Tricks and Installations)

Installation of eAccelerator

eAccelerator is a free open-source PHP accelerator, optimizer, and dynamic content cache. It increases the performance of PHP scripts by caching them in their compiled state, so that the overhead of compiling is almost completely eliminated. It also optimizes scripts to speed up their execution. eAccelerator typically reduces server load and increases the speed of your PHP code by 1-10 times.

To install eAccelerator on a Server just follow the following steps:

1) Login as root in SSH

2) Run the following commands in the following order:

#cd /usr/local/src/

Download the latest version of eAccelerator from http://tinyurl.com/2zzdsv using wget

#tar xvzf eaccelerator-.tar.gz

#cd eaccelerator-

#export PHP_PREFIX="/usr"

#$PHP_PREFIX/bin/phpize

#./configure --enable-eaccelerator=shared --with-php-config=$PHP_PREFIX/bin/php-config
#make
#make install

3) Edit php.ini - usually it's /etc/php.ini or /usr/local/lib/php.ini

Find this:

;Windows Extensions

Above this, comment out or remove the PHPA or mmcache lines if you have them. Replace them with this:

To install as a ZEND extension:

zend_extension="eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/tmp/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"

OR to install as a PHP extension:
extension="eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/tmp/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"

4) Create the cache directory by doing the following at the command line

#mkdir /tmp/eaccelerator
#chmod 0777 /tmp/eaccelerator

5) Restart Apache

service httpd restart