Install Lamp On Centos 7

admin13 April 2024Last Update :

Understanding LAMP Stack Components

The term LAMP is an acronym that stands for a set of free, open-source software originally used together to run dynamic websites or servers. The LAMP stack includes Linux (the operating system), Apache (the web server), MySQL/MariaDB (the database management system), and PHP/Perl/Python (the programming language).

Linux Operating System

Linux provides the core system environment in which all other components operate. It’s known for its stability, security, and flexibility.

Apache HTTP Server

Apache remains the most widely used web server software worldwide. It plays a crucial role in serving web pages to users’ browsers.

MySQL/MariaDB Database

MySQL is a popular relational database management system used for storing and managing data. MariaDB is a fork of MySQL intended to remain free under the GNU GPL.

PHP Programming Language

PHP is a server-side scripting language designed for web development but also used as a general-purpose programming language.

Prerequisites for Installing LAMP on CentOS 7

  • A server running CentOS 7.
  • Access to a user account with sudo privileges.
  • An active internet connection to download necessary packages.
  • Basic knowledge of Linux commands and the terminal.

Step-by-Step Installation Guide

Updating System Packages

Before installing any new software, it’s important to update your system’s package index.

yum update -y

Installing Apache Web Server

To install Apache, use the following command:

yum install httpd -y

Once installed, start the Apache service and enable it to launch at boot:

systemctl start httpd.service
systemctl enable httpd.service

Configuring Firewall for Apache

Adjust the firewall settings to allow HTTP and HTTPS traffic:

firewall-cmd --permanent --zone=public --add-service=http
firewall-cmd --permanent --zone=public --add-service=https
firewall-cmd --reload

Testing Apache Installation

Verify that Apache is running by accessing your server’s IP address in a web browser. You should see the default CentOS 7 Apache web page.

Installing MySQL (MariaDB)

Install MariaDB, a drop-in replacement for MySQL, using the following command:

yum install mariadb-server mariadb -y

Then start the service and enable it at boot:

systemctl start mariadb
systemctl enable mariadb

Securing MariaDB Database

Run the mysql_secure_installation script to secure your database server:

mysql_secure_installation

Follow the prompts to set a root password, remove anonymous users, disallow root login remotely, and remove test databases.

Installing PHP

CentOS 7 ships with PHP 5.4, which is outdated. To install a more recent version, you’ll need to enable a third-party repository such as EPEL and Remi.

yum install epel-release yum-utils -y
yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
yum-config-manager --enable remi-php74
yum install php php-mysql php-gd php-pear -y

After installation, restart Apache to apply the changes:

systemctl restart httpd.service

Testing PHP Processing

Create a simple PHP file to test PHP processing on the Apache server:

echo "" > /var/www/html/info.php

Navigate to http://your_server_ip/info.php. You should see the PHP information page.

Troubleshooting Common Issues

Apache Doesn’t Start

Check the status of the Apache service and review error logs located in /var/log/httpd/error_log.

MariaDB Access Denied

Ensure that you have the correct permissions and that the MariaDB service is running. Reset the root password if necessary.

PHP File Not Executing

If PHP files are downloading instead of executing, ensure that the PHP module is loaded in Apache’s configuration.

Optimizing LAMP Performance

Apache Optimization

Tweak Apache’s configuration, such as MaxKeepAliveRequests and KeepAliveTimeout, for better performance.

MySQL Tuning

Use tools like mysqltuner.pl to analyze your database performance and make recommended adjustments.

OPcache for PHP

Enable and configure OPcache through your php.ini file to improve PHP performance.

Frequently Asked Questions

Can I use Nginx instead of Apache?

Yes, Nginx can be used as an alternative to Apache and is known for its high performance and low memory usage.

How do I upgrade PHP to a newer version?

You can upgrade PHP by enabling a repository that contains the desired version, then updating the PHP packages.

Is it necessary to secure MariaDB?

Absolutely, securing your database helps protect against unauthorized access and potential vulnerabilities.

What should I do if I encounter a 403 Forbidden error on Apache?

This error often indicates permission issues. Ensure that your directory and file permissions are correctly set and that your Apache configuration allows access to the relevant directories.

References

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