Zabbix - Track, record, alert and visualize performance and availability of IT resources
Rublon - Rublon enables your workforce to securely access your organization's networks, servers and applications via easy-to-use multi-factor authentication. Protect cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
DIGIPASS - DIGIPASS offers two-factor authentication solutions for mobile applications.
Prometheus - An open-source systems monitoring and alerting toolkit.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.