"Karl Townsend" wrote in message
news.com...


and, after you do that, make sure the machine has no connection to the
internet and you will be safe

This is my follow up question. I pulled the three CNC machines off my LAN for
now. Is there some way to connect my CNC machines to the office computer so i
can download Gcode and backup machine setup but do nothing else and let
nothing from the outside in? Note: The office computer is internet connected.

Today, I have a DSL modem, then router, then a peer to peer LAN through out
the place.

Karl



The router's firewall will protect the whole network to a great degree. Go to:
http://www.grc.com/default.htm and run "Shields Up".