# mkdir /etc/namedb/key
# cd /etc/namedb/key
# sh
# for i in `jot 15`; do rndcontrol -s $i; done
# dnssec-keygen -a HMAC-MD5 -b 512 -n USER example.jp
# for i in `jot 15`; do rndcontrol -c $i; done
# sed -n 's/Key: \(.*\)/secret "\1";/p' Kexample.jp.+157+26138.private > ../rndc.key
# chmod 600 ../rndc.key
# ^d