If you’re going to do any serious work with WordPress, you don’t want to use your live website to try new things. You will need to have a WordPress installation somewhere that you can use as a testing site.

There you will be able to test different themes, plugins, landing pages, and anything else you want to test before you put it in your live site(s). Here I am going to show you how to set up a test server using an old computer or laptop.
Continue reading >> about WordPress test server using an old computer