Preventing users from ignoring FlashStart's DNS filter

You can prevent users from changing DNS using Active Directory Group Policy. See Microsoft's online guides for more information on Group Policy Objects (GPOs). Another improvement is to create some rules on your router/firewall to automatically redirect DNS requests from PCs to the private IP address of the DNS Proxy. In this way, internal devices configured to use a DNS other than the Proxy DNS IP will be filtered using the default FlashStart DNS filtering policies. IMPORTANT: This rule should be applied to all IPs except the Proxy DNS. Other ways to ask: » How to prevent users from ignoring DNS filtering. » Preventing users from ignoring DNS filtering. How to.