Installing Cacti on Ubuntu 22.04

Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality. It provides a fast and easy way to monitor and graph network traffic, system performance, and other important statistics.

To install Cacti on Ubuntu 22.04, you can follow these steps:

1. Update your system's package index using the following command:

   sudo apt update

2. Install Apache HTTP Server, MySQL, and PHP packages using the following command:

   sudo apt install apache2 mariadb-server php

3. During the installation of MySQL, you will be prompted to set a root password. Make sure to remember this password as you will need it later.
4. Install additional PHP extensions required by Cacti using the following command:

   sudo apt install php-cli php-mysql php-snmp php-xml php-xmlrpc php-mbstring php-gd php-intl php-zip

5. Configure the MariaDB database by running the following command and following the prompts:

   sudo mysql_secure_installation

6. Create a new database for Cacti using the following command:

   sudo mysql -u root -p

   CREATE DATABASE cacti;

   GRANT ALL PRIVILEGES ON cacti.* TO 'cactiuser'@'localhost' IDENTIFIED BY 'password';

   FLUSH PRIVILEGES;

7. Import the default Cacti database using the provided SQL file:

   sudo mysql -u cactiuser -p cacti < /usr/share/cacti/install/createdb.sql

8. Edit Cacti's database configuration file:

   sudo nano /etc/cacti/debian.php

   Update the database username and password:

   $database_username = 'cactiuser';

   $database_password = 'password';

9. Configure Apache for Cacti using the following command:

   sudo ln -s /etc/cacti/apache.conf /etc/apache2/conf-available/cacti.conf

   sudo a2enconf cacti.conf

10. Restart Apache for the changes to take effect:

    sudo systemctl restart apache2

11. Open your web browser and access Cacti by navigating to:

    http://localhost/cacti

    Follow the on-screen instructions to finish the installation process.

Once the installation is complete, you will have a working instance of Cacti on your Ubuntu 22.04 system. You can now start monitoring and graphing your network and system performance.