When happy with the changes deploy to the live system with confidence. Use the test environment to try out new configurations and software. Replicate the live system in a test environment. (Not sure what is a VPS? See the article What is a VPS? What is a VPS Used For?) Do Not Test on Live Systems This tutorial and guide shows how to set up a VirtualBox VM and access it via the Windows SSH client PuTTY, replicating production world VPS access. This test configuration should accurately reflect the live VPS, reducing mistakes when moving from test to production. A deployed VPS can usually be accessed using SSH, therefore using SSH into VPS running on a VM is good practice for a live situation. This VM VPS can then be used to test configuration and software changes before deployment to a live VPS.

This article discusses setting up a virtual machine (VM) as a virtual private server (VPS) and accessing it using secure shell (SSH).

SSH into VPS Virtual Machine on Windows Using PuTTY How to SSH into VirtualBox VM For Virtual Private Server Testing

Virtualbox network settings centos