```sh
sudo pacman -S unbound #package manager d’archlinux, à adapter en fonction de la distribution
sudo systemctl start unbound.service
sudo systemctl enable unbound.service
sudo chattr -i /etc/resolv.conf
echo "nameserver 127.0.0.1" | sudo tee /etc/resolv.conf
sudo chattr +i /etc/resolv.conf
drill 127.0.0.1 TXT archlinux.org #pour tester
```
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