Solve : how to block some site??

1.	Solve : how to block some site??
Answer» i have 4 computers and i want it to be network using router switch. i want to set one of the computer to be the server which has the CONTROL of the other three computer, how can i do it? or how to setup this? if i am using the server in a network. how can i block some website if i dont want the other USER in my network to open this site?1) Your computer will have the role of a router. 2) Using the FIREWALL in your "router" you will be ABLE to deny/allow access to DIFFERENT resources outside the network.

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