- Essential Commands for Managing LAMP Stack on Amazon Linux 2023
If you’ve set up a LAMP (Linux, Apache, MySQL, PHP) stack on Amazon Linux 2023, you’ll need to know how to manage it efficiently. In this guide, we’ll cover common commands for restarting services, editing configuration files, troubleshooting, and more.
1. Managing Apache (httpd) Service
Apache is the web server in your LAMP stack. Here’s how to control it:
Start, Stop, or Restart Apache
# Start Apache
sudo systemctl start httpd
# Stop Apache
sudo systemctl stop httpd
# Restart Apache (use after configuration changes)
sudo systemctl restart httpd
# Reload Apache (without downtime)
sudo systemctl reload httpd
# Check Apache status
sudo systemctl status httpd Enable Apache to Start on Boot
sudo systemctl enable httpd 2. Editing Configuration Files
Locate and Edit php.ini
The PHP configuration file (php.ini) is critical for PHP settings. Use:
# Find the location of php.ini (PHP 8.1 example)
php --ini | grep "Loaded Configuration File"
# Edit the file with nano/vim
sudo nano /etc/php-8.1/php.ini Edit Apache Configuration
Apache’s main configuration file:
sudo nano /etc/httpd/conf/httpd.conf For virtual hosts:
sudo nano /etc/httpd/conf.d/your-site.conf Edit the Hosts File
Temporarily map domains for testing:
sudo nano /etc/hosts 3. Checking PHP Information
Create a phpinfo.php file to verify PHP is working:
echo "<?php phpinfo(); ?>" | sudo tee /var/www/html/phpinfo.php Access it via http://your-server-ip/phpinfo.php. Remove the file afterward for security:
sudo rm /var/www/html/phpinfo.php 4. Checking Logs for Debugging
Apache Logs
Access logs:
/var/log/httpd/access_logError logs:
/var/log/httpd/error_log
Tail logs in real-time:
sudo tail -f /var/log/httpd/error_log Updating Packages
Keep your system and LAMP stack updated:
sudo dnf update File Permissions
Fix permissions for web directories:
sudo chown -R apache:apache /var/www/html
sudo chmod -R 755 /var/www/html Common PHP-Related Commands
Check PHP version:
php -v 