Question: Do you know of a tool that can monitor and alert on various system metrics, such as disk space, network activity, and SSL certificate renewal?

If you need an all-purpose monitoring tool that'll let you keep tabs on lots of system statistics and set up alerts for problems, Datadog is a top option. This monitoring and security service offers real-time visibility into performance, security and user experience, covering infrastructure, app performance and security. It also offers digital experience optimization and software delivery, making it a good fit for many industries.

If you want something more flexible, M/Monit offers a monitoring tool that's designed to scale automatically to handle errors and resource limits. It's got a lot of monitoring abilities, including disk, network and SSL certificate monitoring, and an alert system that lets you set up your own rules to monitor your systems. M/Monit is based on the widely used Open Source utility Monit, but it's got a more modern interface and a variety of pricing options.

Last, LogicMonitor offers a hybrid observability platform, LM Envision, that offers real-time insights and automation across on-premises and multi-cloud environments. With broad monitoring abilities for infrastructure, cloud and digital experience, LogicMonitor also offers AIOPS abilities for predictive maintenance. It's a good fit for financial services and healthcare.