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Installing Eaccelerator.

Installing Eaccelerator.

Eaccelerator is a free open-source PHP accelerator/encoder/caching utility that is based off of the old mmcache (which is no longer being maintained).

What Eaccelerator does is: it caches your PHP scripts so that the database is no longer being queried everytime someone needs a script. eAccelerator stores compiled PHP scripts in shared memory and executes code directly from it. This is particularly useful for large forums, but pretty much anyone can benefit from it. Since these scripts are cached, you’ll notice a decrease in
memory use and server load.

Installation steps for eAccelerator :

1. First, you’ll want to SSH into your server as the root user. you should
be in the default directory now. If you’re not, type in cd ~

2. Now we’ll make the eaccelerator directory:

mkdir /ea/

cd /ea/

2. Now we’ll grab the files, and untar them:
Notice that it’s a tar.bz2 file, so we need to decompress it twice.

wget
http://heanet.dl.sourceforge.net/sourceforge/eaccelerator/eaccelerator-0.9.4-rc1.tar.bz2

bzip2 -d eaccelerator-0.9.4-rc1.tar.bz2

tar xvf eaccelerator-0.9.4-rc1.tar

3. Now that we’ve done that, let’s install Eaccelerator:
Note: in the following “export” command, you need to point that to where
PHP is installed. For most, it’s usually either “usr/” or “usr/local”, but
it may be something else.

cd eaccelerator-0.9.4-rc1/

export PHP_PREFIX=”/usr”

$PHP_PREFIX/bin/phpize

./configure –enable-eaccelerator=shared
–with-php-config=$PHP_PREFIX/bin/php-config

make

make install

4. It’s basically installed, now we need to edit the php.ini files to
include Eaccelerator. This is usually found in the /etc/ folder, but if
you can’t find it, run a “locate php.ini” (without quotes) to find it.
[i]I’m editting my file with nano, which pretty much anyone with a modern
server should have. You can use pico or vi, it’s your choice:

cd ~

nano /etc/php.ini

Now find ;Windows Extensions (press ctrl + W). Remove the mmcache lines
(if you had it installed before) above this and…

—————————————————————————-
For a PHP extension install (most will probably want this)
—————————————————————————-

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″

—————————————————————————-
For a Zend extension install (only if you have Zend installed, or
if you’re going to install it
—————————————————————————-

zend_extension=”/usr/lib/php4/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″

5. Now we need to make the cache directory, where the cache files will be
stored.

cd ~

mkdir /tmp/eaccelerator/

chmod 0777 /tmp/eaccelerator/

6. Yay, it’s installed! Let’s restart Apache now so that Eaccelerator will
start working:

service httpd restart

cp /ea/eaccelerator-0.9.4-rc1/eaccelerator.php /usr/local/apache/htdocs/
—————————–
7. You *should* notice some sort of speed boost or that the server
load/memory use has decreased. But let’s just make sure that it’s
installed properly.

Open up your favorite FTP client and upload the eaccelerator.php and
eaccelerator_password.php files to any directory on your website. I
uploaded mine to my forum directory, but you can pretty much place them
anywhere in the public_html directory.

Once that’s done, you can go to

http://www.your-domain.com/path_to_s…ccelerator.php (of course,
replacing that with the path to the script) to see if it’s installed. If
it’s installed properly, you’ll see a screen like this:

Otherwise, you’ll see a screen saying that it’s not installed. You have to
go back through the instructions, retry it and see if that works. Check to
make sure that you specified the right directories and files in the
instructions above!

Now, we’ll probably want to add a password to prevent some mean user from
clearing the cached scripts or causing other bad stuff to happen. Navigate
to the eaccelerator_password file and set an administrator name and
password.

This doesn’t set the password, but it gives you a line of code to place in
your php.ini file (just below the eaccelerator part). Once you do this,
you need to log in to view the eaccelerator page.

After you’re done, you can delete or rename this file, but it’s not required.
——————————–

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