sudo rm /etc/cron.d/observium sudo rm -rf /var/log/observium Step 7: Uninstall PHP Dependencies (Optional) If Observium was the only application using specific PHP modules, remove them (adjust version as needed):

sudo rm /etc/nginx/sites-enabled/observium sudo rm /etc/nginx/sites-available/observium sudo systemctl restart nginx Delete the Observium cron file:

Root or sudo access. Step 1: Stop and Disable Services Run the following commands to stop Observium’s polling and web services:

sudo systemctl stop observium poller.service sudo systemctl disable observium poller.service sudo systemctl stop apache2 # or nginx, if used Log into MySQL/MariaDB and remove the Observium database and user:

DROP DATABASE observium; DROP USER 'observium'@'localhost'; FLUSH PRIVILEGES; EXIT; Delete the main installation directory (default location):

sudo mysql -u root -p Inside the MySQL prompt, execute:

Objective: Remove Observium, its web interface, database, and related services from an Ubuntu system.