1 Preliminary NoteIn this tutorial I use the hostname server1.example.com with the IP address 192.168.0.100. These settings might differ for you, so you have to replace them where appropriate.
2 Installing MySQL 5To install MySQL, we do this:
yum install mysql mysql-server
chkconfig --levels 235 mysqld on
mysql_secure_installation[root@server1 ~]# mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MySQL to secure it, we'll need the current
password for the root user. If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none):
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.
Set root password? [Y/n] <-- nbsp="" span="">
New password: <-- nbsp="" span="" yourrootsqlpassword="">
Re-enter new password: <-- nbsp="" span="" yourrootsqlpassword="">
Password updated successfully!
Reloading privilege tables..
By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
Remove anonymous users? [Y/n] <-- nbsp="" span="">
Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] <-- nbsp="" span="">
By default, MySQL comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.
Remove test database and access to it? [Y/n] <-- nbsp="" span="">
- Dropping test database...
- Removing privileges on test database...
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] <-- nbsp="" span="">
All done! If you've completed all of the above steps, your MySQL
installation should now be secure.
Thanks for using MySQL!
3 Installing Apache2Apache2 is available as a CentOS package, therefore we can install it like this:
yum install httpd
chkconfig --levels 235 httpd on
Apache's default document root is /var/www/html on CentOS, and the configuration file is /etc/httpd/conf/httpd.conf. Additional configurations are stored in the /etc/httpd/conf.d/ directory.
4 Installing PHP5We can install PHP5 and the Apache PHP5 module as follows:
yum install php
5 Testing PHP5 / Getting Details About Your PHP5 InstallationThe document root of the default web site is /var/www/html. We will now create a small PHP file (info.php) in that directory and call it in a browser. The file will display lots of useful details about our PHP installation, such as the installed PHP version.
Now we call that file in a browser (e.g. http://192.168.0.100/info.php):
Apache 2.0 Handler, as shown in the Server API line. If you scroll further down, you will see all modules that are already enabled in PHP5. MySQL is not listed there which means we don't have MySQL support in PHP5 yet.
6 Getting MySQL Support In PHP5To get MySQL support in PHP, we can install the php-mysql package. It's a good idea to install some other PHP5 modules as well as you might need them for your applications. You can search for available PHP5 modules like this:
yum search php
yum install php-mysql php-gd php-imap php-ldap php-mbstring php-odbc php-pear php-xml php-xmlrpc
7 phpMyAdminphpMyAdmin is a web interface through which you can manage your MySQL databases.
First we enable the RPMforge repository on our CentOS system as phpMyAdmin is not available in the official CentOS 6.2 repositories:
Import the RPMforge GPG key:
rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt
On x86_64 systems:
yum install http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
On i386 systems:
yum install http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.i686.rpm
yum install phpmyadmin
# # Web application to manage MySQL # #
Next we change the authentication in phpMyAdmin from cookie to http:
[...] /* Authentication type */ $cfg['Servers'][$i]['auth_type'] = 'http'; [...]