centos 7 router: dns resolving for clients not working

by Marc   Last Updated August 01, 2020 14:01 PM

Im playing arround and configured a CentOS 7 VM to work as router for other clients on the network, following this guide: https://linuxtechlab.com/turning-centosrhel-6-7-machine-router/. Everything works fine, clients can ping external ip address, & as example.

But cant resolve any dns/hostname. Google & Quad 9 are configured as DNS server (for the clients) but it seems that my CentOS 7 Router block the DNS request.

Can someone give me a tipp how to solve this issue ?

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