Install LAMP on Server CentOS 5.5

      LAMP is an acronym for a solution stack of free, open source software, originally coined from the first letters of Linux (operating system), Apache HTTP Server, MySQL (database software), and PHP, principal components to build a viable general purpose web server.

1. Install MySQL

# yum install mysql mysql-server

Adding MySQL to startup

# chkconfig --levels 235 mysqld on
# /etc/init.d/mysqld start

Create MySQLadmin User and Password

# mysqladmin -u root password YourPassSQL
# mysqladmin -h HostNameServer -u root password YourPassSQL

You can find HostNameServer on terminal console  [root@HostNameServer ~]#


2. Install Apache.

# yum -y install httpd

Adding Apache to startup, so it can automatic loaded if system restarted.

# chkconfig --levels 235 httpd on

# service httpd start

To check Apache has installed on server go to http://YourIPAddress/ and if you see as in the screenshoot that means Apache has been installed on your server.

If you get message "No Route To Host" that means you must open port 80 that still closed by firewall.
To open port 80 simply do this step:

# vi /etc/sysconfig/iptables

Add this command and save (to save press key "Esc" and then type ":wq")

-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 80 -j ACCEPT

And then restart IPTABLES

# service iptables restart

3. Install PHP

# yum install php php-mysql php-mbstring php-gd php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc

Restart Apache

# service httpd restart

To check php has been installed on server simply do following step:

# vi /var/www/http/php/index.php

and type following php code:

<?php
phpinfo();
?>

Save and go to http://YourIPAddress/php 
if php has been installed on your server, you will see a page like this:

DONE!!!
Now you can build a website on your server.