What is the method of installing and deploying the Cacti tool in Linux?

To install and deploy the Cacti tool on a Linux system, follow these steps:

1. Check dependencies: First, make sure that the necessary dependencies are installed on the system, such as Apache, MySQL, and PHP. Run the following commands in the terminal to install them.
2. Install apache2, mysql-server, php, php-mysql, php-snmp, and snmp using the sudo apt-get command.
3. Create a database: Log in to the MySQL server using the MySQL command line tool and create a new database and user for Cacti. Run the following commands:
4. Please input your MySQL username and password
5. Create a database named cacti, grant all privileges on cacti to the user named ‘cactiuser’ at localhost with the password ‘password’, flush privileges, then exit.
6. Download the Cacti software package: Run the following command in the terminal to download the Cacti software package:
7. Download the latest version of Cacti from the following link: https://www.cacti.net/downloads/cacti-latest.tar.gz
8. 解压软件包：将下载的Cacti软件包解压到Apache的网页目录。运行以下命令：
9. Uncompress the cacti-latest.tar.gz file into /var/www/html/ using sudo.
10. Importing Database: Use the database previously created, import the database structure of Cacti. Run the following command:
11. Run the command ‘mysql -u cactiuser -p cacti < /var/www/html/cacti/cacti.sql'
12. Setting up Cacti: Duplicate the configuration file template of Cacti and rename it as config.php. Execute the following command:
13. Copy the file “config.php.dist” located in /var/www/html/cacti/include/ to /var/www/html/cacti/include/ and rename it as “config.php”.
14. Next, edit the config.php file and modify the values of the following variables:
15. The database type is set to ‘mysql’, with the default database named ‘cacti’ on the local server, using the username ‘cactiuser’ and password ‘password’ for authentication.
16. Set up Apache: Make sure that Apache has the PHP and SNMP modules enabled. Execute the following command:
17. Enable the PHP and SNMP modules by typing the following commands in the terminal:
    sudo a2enmod php
    sudo a2enmod snmp
18. Setting up Apache virtual hosts for Cacti: Create a new Apache virtual host configuration file and edit it. Run the following command:
19. Access the cacti.conf file in the sites-available directory of Apache2 using the nano text editor with superuser privileges.
20. “Include the following content in the document:”
21. This configuration sets up a virtual host for example.com on port 80, with the document root at /var/www/html/cacti. It specifies ServerAdmin email, ServerName, ServerAlias, ErrorLog, and CustomLog. The directory /var/www/html/cacti is configured with options FollowSymLinks, AllowOverride All, and Require all granted.
22. Save and close the file. Then, disable the default Apache virtual host configuration file and enable the new Cacti configuration file. Run the following command:
23. Disable the default site configuration file, enable the cacti site configuration file, and reload apache2.
24. Enable Cacti scheduled tasks: Cacti requires regular execution of scheduled tasks to collect data. Run the following command:
25. Edit the crontab file with sudo privileges.
26. Add the following lines to the end of the document:
27. Run the PHP script poller.php located in /var/www/html/cacti every five minutes and redirect any output to /dev/null.
28. Save and close the file.
29. Installation complete: Now, access Cacti by entering the server’s IP address or domain name in a web browser. The default login username is admin and the password is also admin. Once logged in, follow the on-screen instructions for initial configuration and settings.

This is the general process of installing and deploying the Cacti tool on a Linux system. Please note that specific steps may vary.