How to install LEMP (Linux, Nginx, MariaDB, PHP) on CentOS

In the previous article I have guided you Install LEMP on Ubuntu, In this article I will show you how to install the famous LEMP webserver including: Linux + Nginx + MariaDB + PHP (PHP-FPM) on CentOS 7 / 6.5 / 6.4 / 6.3 / 6.2 / 6.1 / 6 / 5.10 .

lemp on centos

install LEMP (Linux, Nginx, MariaDB, PHP) on CentOS

Nginx (pronounced “Engine x”) is a compact, low-cost, powerful, and high-performance web server.

– PHP supports versions 5.3, 5.4, 5.5, 5.6, 7.0

– MariaDB is an open source version of MySQL that works exactly like MySQL. Starting with CentOS 7 by default has started supporting MariaDB, you should use MySQL instead of now.

I. Install Nginx and PHP on CentOS 7 / 6.5 /

1. Add the required repo

CentOS 7 / 6.5 / 5.10 EPEL repository

yum install epel-release

CentOS 7/6.5/5.10 Remi repository

## CentOS 7 ##
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

## CentOS 6 ##
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

## CentOS 5 ##
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-5.rpm

CentOS 7/6.5/5.10 Nginx repository

## CentOS 7 ##
rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

## CentOS 6 ##
rpm -Uvh http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm

## CentOS 5 ##
rpm -Uvh http://nginx.org/packages/centos/5/noarch/RPMS/nginx-release-centos-5-0.el5.ngx.noarch.rpm

2. Install Nginx, PHP

CentOS 7 / 6.5 / 5.10

## PHP 5.3 ##
yum install -y nginx php-fpm php-common

## PHP 5.4 ##
yum --enablerepo=remi install -y nginx php-fpm php-common

## PHP 5.5 ##
yum --enablerepo=remi,remi-php55 install -y nginx php-fpm php-common

## PHP 5.6 ##
yum --enablerepo=remi,remi-php56 install -y nginx php-fpm php-common

## PHP 7.0 ##
yum --enablerepo=remi,remi-php70 install -y nginx php-fpm php-common

## PHP 7.1 ##
yum --enablerepo=remi,remi-php71 install -y nginx php-fpm php-common

3. Install PHP module

Some common PHP modules:

  • OPcache (php-opcache) – The Zend OPcache provides faster PHP execution through opcode caching and optimization.
  • APCu (php-pecl-apc) – APCu userland caching
  • CLI (php-cli) – Command-line interface for PHP
  • PEAR (php-pear) – PHP Extension and Application Repository framework
  • PDO (php-pdo) – A database access abstraction module for PHP applications
  • MySQL (php-mysqlnd) – A module for PHP applications that use MySQL databases
  • PostgreSQL (php-pgsql) – A PostgreSQL database module for PHP
  • MongoDB (php-pecl-mongo) – PHP MongoDB database driver
  • SQLite (php-pecl-sqlite) – Extension for the SQLite Embeddable SQL Database Engine
  • Memcache (php-pecl-memcache) – Extension to work with the Memcached caching daemon
  • Memcached (php-pecl-memcached) – Extension to work with the Memcached caching daemon
  • GD (php-gd) – A module for PHP applications for using the gd graphics library
  • XML (php-xml) – A module for PHP applications which use XML
  • MBString (php-mbstring) – A module for PHP applications which need multi-byte string handling
  • MCrypt (php-mcrypt) – Standard PHP module provides mcrypt library support

To install you use the command  yum --enablerepo=remi,remi-php56 install ten_module. For example:

yum --enablerepo=remi,remi-php56 install -y php-opcache php-pecl-apcu php-cli php-pear php-pdo php-mysqlnd php-pgsql php-pecl-mongo php-pecl-sqlite php-pecl-memcache php-pecl-memcached php-gd php-mbstring php-mcrypt php-xml

4. Stop httpd (Apache) server, Start Nginx và PHP-FPM

Stop httpd (Apache)

## CentOS 7 ##
systemctl stop httpd.service

## CentOS 6.5 / 5.10 ##
service httpd stop

Start Nginx

## CentOS 7 ##
systemctl start nginx.service
 
## CentOS 6.5 / 5.10 ##
service nginx start

Start PHP-FPM

## CentOS 7 ##
systemctl start php-fpm.service

## CentOS 6.5 / 5.10 ##
service php-fpm start

5. Automatic start Nginx, PHP-FPM and disable httpd

Disable httpd (Apache) when booting

## CentOS 7 ##
systemctl disable httpd.service
 
## CentOS 6.5 / 5.10 ##
chkconfig httpd off

Autostart Nginx

## CentOS 7 ##
systemctl enable nginx.service
 
## CentOS 6.5 / 5.10 ##
chkconfig --add nginx
chkconfig --levels 235 nginx on

Autostart PHP-FPM

## CentOS 7 ##
systemctl enable php-fpm.service
 
## CentOS 6.5 / 5.10 ##
chkconfig --add php-fpm
chkconfig --levels 235 php-fpm on

6. Configure Nginx and PHP-FPM

Configure Nginx

– Change worker_processes

nano /etc/nginx/nginx.conf

Customize worker_processes equal to your VPS processor number

– Configure nginx virtual hosts

nano /etc/nginx/conf.d/default.conf

You change the information below:

#
# The default server
#
server {
    listen       80;
    server_name example.com;

    location / {
        root   /usr/share/nginx/html;
        index index.php index.html index.htm;
        try_files $uri $uri/ /index.php?q=$uri&$args;
    }

    error_page  404              /404.html;
    location = /404.html {
        root   /usr/share/nginx/html;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ \.php$ {
        root           /usr/share/nginx/html;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME   $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }
}

Red lines need to be changed.

– Restart Nginx

## CentOS 7 ##
systemctl restart nginx.service
 
## CentOS 6.5 / 5.10 ##
service nginx restart

Configure PHP-FPM

– Edit user and group

nano /etc/php-fpm.d/www.conf

Change user and group = apache to nginx

 [...]
 ; Unix user/group of processes
 ; Note: The user is mandatory. If the group is not set, the default user's group
 ; will be used.
 ; RPM: apache Choosed to be able to access some dir as httpd
 user = nginx
 ; RPM: Keep a group allowed to write in log dir.
 group = nginx
 [...]

– Restart PHP-FPM

## CentOS 7 ##
systemctl restart php-fpm.service

## CentOS 6.5 / 5.10 ##
service php-fpm restart

7. Nginx and PHP-FPM Configuration Test

nano /usr/share/nginx/html/info.php

Add the following paragraph

<?php
phpinfo();
?>

Test by link: http: // <ip-address> /info.php. If you see the information about PHP is installed successfully.

Note : If you directly access the IP that the error is not connected then open the port http:

service iptables start
iptables -I INPUT -p tcp --dport 80 -j ACCEPT
service iptables save
service iptables restart

II. Install MariaDB on CentOS 7 / 6.5 / 5.10

 1. Add the MariaDB repo

Note : No need to do on CentOS 7. The MariaDB version on CentOS 7 is now 5.5.37

## CentOS 6/5 MariaDB 5.5 ##
wget -O /etc/yum.repos.d/MariaDB.repo http://mariadb.if-not-true-then-false.com/centos/$(rpm-E% centos) / $ (uname -i) / 5

## CentOS 6/5 MariaDB 10.0 ##
wget -O /etc/yum.repos.d/MariaDB.repo http://mariadb.if-not-true-then-false.com/centos/$(rpm-E% centos) / $ (uname -i) / 10

Install or update MariaDB

## CentOS 7 ##
yum install -y mariadb mariadb-server

## CentOS 6.5 / 5.10 ##
yum install -y MariaDB MariaDB-server

Starts MariaDB and runs automatically when booting

## CentOS 7 ##
systemctl start mariadb.service
systemctl enable mariadb.service

## CentOS 6.5 / 5.10 ##
service mysql start
chkconfig --levels 235 mysql on

4. Configuring MariaDB

  • Set (Change) root password
  • Remove anonymous users
  • Disallow root login remotely
  • Remove test database and access to it
  • Reload privilege tables

– Start the installation

/usr/bin/mysql_secure_installation

At the first step you will be asked root password, because the new installation should of course have no password, press Enter to continue.

– Output is similar to the following:

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we\'ll need the current
password for the root user. If you\'ve just installed MariaDB, 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 MariaDB
root user without the proper authorisation.

Set root password? [Y/n] y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB 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, MariaDB 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] and
... Success!

Cleaning up...

All done! If you\'ve completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!

How to install LEMP (Linux, Nginx, MariaDB, PHP) on CentOS

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