Adequate network protection

The network needs to be properly protected. It is a good idea to have private IP space inside the local network, it will ensure that local companies are not available to the outside world.

Another thing to think about are firewall rules. It is possible to have private IPs assigned to computers, but if firewall redirects traffic to a certain computer then it is a risk to deal with.

For example if firewall redirects HTTP traffic to a web server, than it is expected, however if redirects Windows traffic to a specific computer, than it is very suspicious.

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