Installation: UPGRADING: 1) To upgrade eaccelerator: Just download the NEW version of eaccelerator and recompile - same instructions as installing. NOTE the CHANGES to the directory path in php.ini 2) To upgrade PHP versions: You need to DELETE the eaccelerator directory that has been compiled, re-untar the eaccelerator gzip file and RE-INSTALL and recompile eaccelerator for every NEW version of PHP. 1) Login as root in SSH 2) Run the following commands in the following order: cd / mkdir ea cd ea wget http://kent.dl.sourceforge.net/sourc...r-0.9.3.tar.gz tar xvzf eaccelerator-0.9.3.tar.gz cd eaccelerator-0.9.3 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="/ea/eaccelerator-0.9.3/modules/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="/ea/eaccelerator-0.9.3/modules/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 Done!