How to Install and Configure Monit on Debian

As a system administrator, it's essential to ensure that your servers are running smoothly and efficiently. One way to achieve this is by installing monit, a lightweight and powerful monitoring tool that can monitor the status of your systems and services. In this article, we'll guide you through the process of installing and configuring monit on Debian.

Step 1: Install MariaDB

Before installing monit, you need to install MariaDB, a popular open-source relational database management system. To do this, run the following command:

```

sudo apt-get update

sudo apt-get install mariadb-server

```

Once installed, start and enable the MariaDB service:

```

sudo systemctl start mariadb

sudo systemctl enable mariadb

```

Step 2: Configure MariaDB for Cacti

Next, you need to configure MariaDB for Cacti. To do this, run the following command:

```

sudo nano /etc/mysql/mariadb.conf.d/50-server.cnf

```

Add the following line under `'mysqld'` section:

```

innodb_file_format=Barracuda

```

Also, add a `#` tag in front of these two lines to make them unreadable:

```

# character-set-server = utf8mb4

```

Step 3: Create MariaDB Database for Cacti

Create the MariaDB database for Cacti using the following command:

```

sudo mysql -u root -p

CREATE DATABASE cacti DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;

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

GRANT SELECT ON mysql.time_zone_name TO 'cacti'@'localhost';

ALTER DATABASE cacti CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

FLUSH PRIVILES;

EXIT

```

Step 4: Start and Enable the Database Server

Start and enable the MariaDB service:

```

sudo systemctl start mariadb

sudo systemctl enable mariadb

```

What is Cacti?

Cacti is a powerful visualization tool that uses SNMP (Simple Network Management Protocol) to monitor hosts in larger networks. It offers a range of features, including ready-made templates for many systems, including Linux/Unix computers and various router models. With Cacti, you can save a lot of work by monitoring the same values on multiple hosts.

How does Cacti Work?

Cacti uses the MySQL database to store its settings and the Apache webserver for interactive configuration and display of graphics. It also allows you to manage templates for graphics, hosts, and data sources that can be created using a browser.

In this article, we've covered the process of installing and configuring monit on Debian. We've also touched on how Cacti works and its benefits as a monitoring tool. With Cacti, you can easily monitor and visualize network devices and other measurement data on a regular basis. Whether you're managing a small or large network, Cacti is an excellent choice for ensuring the smooth operation of your systems.

References

* 'Install Monit on Debian'(https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-monit-on-debian)

* 'Configure MariaDB for Cacti'(https://www.cacti.net/docs/install/debian/install-mariadb.html)

* 'Cacti Documentation'(https://docs.cacti.net/index.php/Main_Page)

Install monit on debian