How to use your Raspberry Pi as a DNS Server

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$ sudo apt update
$ sudo apt upgrade
$ sudo apt install dnsmasq
$ sudo nano /etc/dnsmasq.conf

Comment out these three lines:

domain-needed
bogus-priv
expand-hosts

Then add this line:

domain=casa.local

Open the hosts file with nano

$ sudo nano /etc/hosts

Add a line like this at the end

10.0.0.121 nas
10.0.0.101 macmini
10.0.0.124 pi

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