I have an old computer with two network cards and I've installed Ubuntu Server 12.04 LTS on it. I have an old router d-link des-1024d.
I want to plug the internet into one network card and the router into the other. Then I want to plug 15 work stations into the router and be able to use the internet from the server's internet connection.
Also a bonus would be to allocate each workstation a certain amount of bandwidth and also to be able to block websites.
Also I want to be able to have a mapped network drive on the Win7 machines so they can transfer files to the server as backup.
I need a step by step guide as I don't usually do this.