Nagios: Nagios is a popular open-source monitoring tool that allows you to monitor the status of your Linux hosts and services. It provides a comprehensive view of your infrastructure and notifies you of any issues or downtime.
Zabbix: Zabbix is another powerful monitoring tool that offers real-time monitoring of your Linux hosts and services. It features a user-friendly interface and customizable alerting options.
Icinga: Icinga is a flexible monitoring tool that allows you to monitor the availability and performance of your Linux hosts and services. It offers a range of plugins and integrations to extend its functionality.
Prometheus: Prometheus is a popular monitoring tool for Linux hosts that collects metrics and stores them in a time-series database. It offers powerful querying capabilities and can be integrated with other tools for visualization and alerting.
Sensu: Sensu is a monitoring tool that allows you to monitor the health and performance of your Linux hosts and services. It offers a versatile plugin architecture and supports automated remediation actions.
These are just a few of the many monitoring tools available for Linux hosts. Depending on your specific requirements and preferences, you may want to explore other options as well.