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About LAMPyum update
LAMP stack is a group of open source software used to get web servers up and running. The acronym stands for Linux, Apache, MySQL, and PHP. Since the server is already running CentOS, the linux part is taken care of. Here is how to install the rest.
Set Up
The steps in this tutorial require the user on the virtual private server to have root privileges. You can see how to set that up in the Initial Server Setup Tutorial in steps 3 and 4.
Step One—Install Apache
Apache is a free open source software which runs over 50% of the world’s web servers.
To install apache, open terminal and type in this command:
Once it installs, you can start apache running on your VPS:sudo yum install httpd
That’s it. To check if Apache is installed, direct your browser to your server’s IP address (eg. http://12.34.56.789). The page should display the words “It works!" like this.sudo service httpd start
How to find your Server’s IP address
You can run the following command to reveal your server’s IP address.
Step Two—Install MySQLifconfig eth0 | grep inet | awk '{ print $2 }'
MySQL is a powerful database management system used for organizing and retrieving data on a virtual server
To install MySQL, open terminal and type in these commands:
During the installation, MySQL will ask you for your permission twice. After you say Yes to both, MySQL will install.sudo yum install mysql-server
sudo yum -y install php-mysql
sudo yum install php-mbstring
sudo service mysqld start
Once it is done installing, you can set a root MySQL password:
The prompt will ask you for your current root password.sudo /usr/bin/mysql_secure_installation
Since you just installed MySQL, you most likely won’t have one, so leave it blank by pressing enter.
Then the prompt will ask you if you want to set a root password. Go ahead and choose Y and follow the instructions.Enter current password for root (enter for none):
OK, successfully used password, moving on...
CentOS automates the process of setting up MySQL, asking you a series of yes or no questions.
It’s easiest just to say Yes to all the options. At the end, MySQL will reload and implement the new changes.
Step Three—Install PHPBy 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
production environment.
Remove anonymous users? [Y/n] y
... Success!
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] y
... Success!
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] y
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!
Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.
Reload privilege tables now? [Y/n] y
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MySQL
installation should now be secure.
Thanks for using MySQL!
PHP is an open source web scripting language that is widely used to build dynamic webpages.
To install PHP on your virtual private server, open terminal and type in this command:
Once you answer yes to the PHP prompt, PHP will be installed.sudo yum install php php-mysql
PHP Modules
PHP also has a variety of useful libraries and modules that you can add onto your server. You can see the libraries that are available by typing:
Terminal then will display the list of possible modules. The beginning looks like this:yum search php-
To see more details about what each module does, type the following command into terminal, replacing the name of the module with whatever library you want to learn about.php-bcmath.x86_64 : A module for PHP applications for using the bcmath library
php-cli.x86_64 : Command-line interface for PHP
php-common.x86_64 : Common files for PHP
php-dba.x86_64 : A database abstraction layer module for PHP applications
php-devel.x86_64 : Files needed for building PHP extensions
php-embedded.x86_64 : PHP library for embedding in applications
php-enchant.x86_64 : Human Language and Character Encoding Support
php-gd.x86_64 : A module for PHP applications for using the gd graphics library
php-imap.x86_64 : A module for PHP applications that use IMAP
Once you decide to install the module, type:yum info name of the module
You can install multiple libraries at once by separating the name of each module with a space.sudo yum install name of the module
Congratulations! You now have LAMP stack on your droplet!
We should also set the processes to run automatically when the server boots (php will run automatically once Apache starts):
Step Four—RESULTS: See PHP on your Serversudo chkconfig httpd on
sudo chkconfig mysqld on
Although LAMP is installed on your virtual server, we can still take a look and see the components online by creating a quick php info page
To set this up, first create a new file:
Add in the following line:sudo nano /var/www/html/info.php
Then Save and Exit.<?php
phpinfo();
?>
Restart apache so that all of the changes take effect on your virtual server:
Finish up by visiting your php info page (make sure you replace the example ip address with your correct one): http://12.34.56.789/info.phpsudo service httpd restart
It should look similar to this.
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