How to force DHCP clients to use specific DNS adress like 8.8.8.8

One possibility would be a deny rule that only allows DNS queries on 8.8.8.8. and blocks them to all other DNS servers

Regards,

Max

Hi Govinda,

with regards to this setup,

- you need to set XG in your hosts DNS settings. and set XG's DNS with 8.8.8.8 or whichever dns you prefer. and configure a firewall rule that will block any outbound dns query.

- configure a firewall rule that will only accept dns traffic from LAN to WAN zone and 8.8.8.8 or any other preferred DNS as destination network.

Let us know, how it goes.

Regards,

Rap 

As I am new to SOPHOS XG Firewall, I don't have much more knowledge about firewall rules. Would you mind with steps by steps on how to configure a firewall rule that will block any outbound DNS query and configure a firewall rule that will only accept DNS traffic from LAN to WAN zone and 8.8.8.8 or any other preferred DNS as destination network.

Thank you

Set the DNS Settings on the XG to 8.8.8.8

And create the following rules:

Kind Regards,

Max

Thank You very much Max for your generosity. It really helped me. Thank You one more time.