How to Install Zend Optimizer on RedHat Enterprise Linux (RHEL)

If you are setting up a web server then having Zend's "Optimizer" for your server is a necessary evil for just about any client who uses PHP.

Sometimes it can be tricky to install, I will guide you through the process.

Difficulty: Moderately Easy

Instructions

Things You'll Need:

• SSH Access
• Root password

1. SSH and connect to your box as your wheel group user, and then "su -" to root.

2. Download the file you need from Zend directly. This page requires you to setup a free account with them to access the download page.
   
   http://www.zend.com/free_download/optimizer

3. Once you have the file, copy it to your ~ directory on the linux server.

4. If you have a GZ file:
   gzip -d ~/ZendOptimizer-3.3.0-linux-glibc21-i386.tar.gz
   
   Now that you have a tar (or started with a tar)
   tar -xvf ~/ZendOptimizer-3.3.0-linux-glibc21-i386.tar

5. Change directory and then run the installer script.
   
   cd ~/ZendOptimizer-3.3.0-linux-glibc21-i386
   ./install.sh

6. make sure that the end of your php.ini file looks like this - if not change it (this is assuming your installing version 3.3.0)
   
   [Zend]
   zend_extension_manager.optimizer=/usr/local/Zend/lib/Optimizer-3.3.0
   zend_extension_manager.optimizer_ts=/usr/local/Zend/lib/Optimizer_TS-3.3.0
   zend_optimizer.version=3.3.0
   zend_extension=/usr/local/Zend/lib/ZendExtensionManager.so
   zend_extension_ts=/usr/local/Zend/lib/ZendExtensionManager_TS.so

7. Save and close the file if you change it. Then restart Apache to pick up the changes.
   
   /sbin/service httpd restart

8. Now verify from the php CLI that its installed and working.
   
   php -v
   
   You should see something similar to
   
   PHP 5.2.3 (cli) (built: Jun 7 2007 08:59:02)
   Copyright (c) 1997-2007 The PHP Group
   Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies
   with Zend Extension Manager v1.2.0, Copyright (c) 2003-2007, by Zend Technologies
   with Zend Optimizer v3.3.0, Copyright (c) 1998-2007, by Zend Technologies

Tips & Warnings

• If step 7 fails then it will tell you why when you type the command.