check_mk
Check_MK is an extension to the Nagios monitoring system that allows creating rule-based configuration using Python and offloading work from the Nagios core to make it scale better, allowing more systems to be monitored from a single Nagios server. It comes with a set of system checks, a mod_python and JavaScript based web user interface, and a module that allows fast access to the Nagios core. On top of Nagios it also adds additional features
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Icinga 2
Icinga 2 is the newest version of Icinga. It is a scalable and extensible monitoring system which checks the availability of your resources, notifies users of outages and provides extensive BI data.
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Nagios Core
Nagios Core network monitoring software is a powerful, enterprise-class host, server, application, monitoring and alerting tool
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NGINX Amplify
Amplify is free monitoring tool for NGINX. Amplify offers extended NGINX metric collection, visualization, monitoring, and a static analyzer for NGINX configuration. It's simple to set up, yet powerful enough to bring the much needed insight into NGINX performance. Amplify is a SaaS developed and operated by Nginx, Inc. Keep NGINX up to date and secure with a native monitoring solution.
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Ngrok
Ngrok provides secure, encrypted tunnels to local services with out the requirement for port forwarding.
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ntopng
'ntopng' provides an easy to understand, intuitive interface with a world of options and features to monitor your network.
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NXLog Enterprise and Community Editions
A multi-platform log collection suite to collect, parse, convert and send logs. Integrate with a wide range of products including SIEMs, log analytics dashboards, cloud services, databases, and more.
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okmeter.io
okmeter.io is an integrated and ready-to-use monitoring solution. It autodiscovers sevices and collects 1000s of metrics from each kind of source — hardware, OS, net stack, processes, databases, queue, web-servers, etc. Okmeter goes with preset dashboards and preconfigured triggers on common pitfalls for all those services.
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Prevoty Application Monitoring & Protection (AMP)
Prevoty enables DevOps to inject security into your web applications and web services. Protection is provided at runtime from within the application itself, and stays with the app regardless of deployment method (cloud, on-premises, etc). Applications are protected against threats including XSS, SQLi, CSRF, command injection, etc. Works with Puppet, Chef, Ansible, Docker, Splunk, QRadar, ELK, and many others.
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Snitch
SaaS SSL monitoring and alerting. Snitch audits for revocation, expiration, changes to the certificate, known security vulnerabilities, and best practices. Snitch worries about your SSL/TLS certificate so you don't have to
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Splunk
Splunk captures, indexes and correlates data (usually logs) in a searchable repository from which it can generate graphs, reports, alerts, dashboards and visualizations. Splunk provides searching time field parsing, so users can index any clear text data into splunk and extract the reqired fields later when needed.
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