WordPress is an open-source content management system (CMS) that allows you to easily create and manage websites and blogs. This guide will show you how to install WordPress on a LAMP server.

Prerequisites

• An Ubuntu server with LAMP stack installed.
• A user with sudo privileges.
• A domain pointed to your server (optional but recommended).

Step 1: Create a Database for WordPress

Access MySQL:

sudo mysql -u root -p

Create the database and user for WordPress:

CREATE DATABASE wordpress DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE USER 'wp_user'@'localhost' IDENTIFIED BY 'your_secure_password';
GRANT ALL ON wordpress.* TO 'wp_user'@'localhost';
FLUSH PRIVILEGES;
EXIT;

Step 2: Install Required PHP Extensions

Install the necessary PHP extensions:

sudo apt install php-curl php-gd php-mbstring php-xml php-xmlrpc -y

Restart Apache to load the new extensions:

sudo systemctl restart apache2

Step 3: Download WordPress

Navigate to the /tmp directory and download the latest version of WordPress:

cd /tmp
curl -LO https://wordpress.org/latest.tar.gz
tar xzvf latest.tar.gz

Step 4: Configure WordPress

Copy the WordPress files to the web server’s root directory:

sudo cp -a /tmp/wordpress/. /var/www/html

Set the correct permissions:

sudo chown -R www-data:www-data /var/www/html
sudo find /var/www/html -type d -exec chmod 755 {} \;
sudo find /var/www/html -type f -exec chmod 644 {} \;

Step 5: Configure the wp-config.php File

Generate the unique security keys:

curl -s https://api.wordpress.org/secret-key/1.1/salt/

Copy the output.

Rename the configuration file:

cd /var/www/html
sudo mv wp-config-sample.php wp-config.php

Edit wp-config.php:

sudo nano wp-config.php

Enter the database information and paste the security keys.

Step 6: Complete the Installation via Browser

Open your browser and navigate to http://your_domain or http://your_server_ip. Follow the on-screen instructions to complete the installation.

Conclusion

You have successfully installed WordPress on your LAMP server. You can now start customizing your site.

Server security is fundamental. UFW (Uncomplicated Firewall) is a simple tool to manage firewall rules on Ubuntu and other Debian-based Linux distributions. This guide will show you how to configure UFW to protect your server.

Prerequisites

• An Ubuntu or Debian system.
• Access with sudo privileges.

Step 1: Install UFW (if not already installed)

sudo apt install ufw -y

Step 2: Check the Current Status of UFW

Check if UFW is active:

sudo ufw status verbose

Step 3: Allow SSH Connections

Before enabling UFW, make sure to allow SSH connections to avoid losing access to the server:

sudo ufw allow ssh

Step 4: Allow Other Necessary Services

Allow traffic for services like HTTP and HTTPS:

sudo ufw allow http
sudo ufw allow https

Or use application profiles:

sudo ufw allow 'Apache Full'

Step 5: Enable UFW

Enable the firewall:

sudo ufw enable

Confirm with y when prompted.

Step 6: Verify Active Rules

Check the active rules:

sudo ufw status numbered

Step 7: Add Custom Rules (Optional)

• Allow a specific port:

sudo ufw allow 8080/tcp

• Deny a connection from a specific IP:

sudo ufw deny from 192.168.1.100

Step 8: Delete or Modify Rules

To delete a rule:

1 – View numbered rules:

sudo ufw status numbered

2 – Delete the specific rule:

sudo ufw delete [rule_number]

Conclusion

You have configured UFW to protect your Linux server. Remember to update the firewall rules whenever you add new services.