CoreOS
CoreOS is an extremely lightweight base OS for Docker. It installs just a kernel, systemd and docker, and then you use Docker to pull in any service that you want. Can be used as a base OS when running your own PaaS with Docker, or other kind of deployments.
linux open-source commercial virt cloud-paas
elmah.io
Cloud-based error management/logging for .NET web applications. Find bugs before you go live. Powerful search, API, integration with Slack, GitHub, Visual Studio and more.
windows commercial errors logging monitoring
Netboot.xyz
Netboot.xyz is a preconfigured iPXE bootloader that completely eliminates the need for large ISO files for a vast range of operating systems.
linux windows osx bsd solaris open-source free commercial provisioning virt
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.
linux bsd free commercial logging monitoring metrics visualization security hardening errors