Zabbix - Track, record, alert and visualize performance and availability of IT resources
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
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.
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...