wget -O $3.gz https://www.internic.net/zones/root-servers.net.zone.gz
wget -O $3.gz.sig https://www.internic.net/zones/root-servers.net.zone.gz.sig
gpg --keyring ~/work/keyrings/all.kbx --verify $3.gz.sig
rm $3.gz.sig
gunzip $3.gz