Jenkins is a self-contained, open source automation server which can be used to automate all sorts of tasks related to building, testing, and delivering or deploying software
HTTP Status code is a response that sent from server to client that request a resource, understand this HTTP status code will help to understand if something is going wrong.
VyOS is an open source network operating system based on Debian GNU/Linux.
VyOS is run on standard amd64, i586 and ARM systems, it is able to be used as a router and firewall platform for cloud deployments.