Question: Do you want this to be seen publically or on just one machine?

Question how big is your website? If small, I suggest it would be cheaper to host it with a professional webhosting company at a fraction of the cost. If you wish to set up your own server it will require server software and an highspeed connection (you will require to do port management) have some aptitude to manage access to your website, number of concurrent connections and sufficient bandwidth.

It often works out cheaper to have it hosted than to provide dedicated equipment, software, licenses, highspeed connection, routers and UPS to host it yourself. Contrary to what you think, it is cheaper to have it hosted as opposed to host.