Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
NetVizura NetFlow Analyzer - NetFlow Analyzer is a solution for bandwidth monitoring and traffic analysis. It helps with traffic investigation, analysis and reporting
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
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.