ModSecurity - ModSecurity is an Open Source web application firewall developed by Trustwave's SpiderLabs.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Imperva SecureSphere - Get the flexibility, reliability, and performance you need to protect your business. SecureSphere covers you both on-premises or in the cloud.
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
F5 NGINX - F5 NGINX is a web application security solution that allows you to protect your applications, APIs, and customer data across cloud servers, on-premises data centers, and architectures.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.