I am having some problem restricting users (customer) from accessing important resource in our network. Our network consisting of 7 computers plus 2 customers computer, let me divide into 3 sections. -section A consisting 2 pc + 1 laptop (same workgroup) -section B consisting 3 pc + 2 laptop (same workgroup) -section c consisting 2 laptop (othe workgroup) (section c is for customer, the only thing i would like them to have is internet access, no need them to accessing into our workgroup) NOTE: - We do not have a server running. - The customer is owning their laptops (noway i can mess or config their machine. Here is a draft of our network topology Internet | Modem Router | linksys Router | | | | | | Hub Hub Hub | | | | | | (block A) 3 machine (block B) 5 machine (block C) 2 machine Is there a certain way i can block the Customer machine from accessing our important file while they can surfing the internet? I have not quite messing with using Server yet (i heard using domain is more security than using workgroup) but if i have to in order to succeed, which important procedure do i need to take and where can i learnt from? can anyone here guide me through this please.