mv_conffile /etc/default/bind  /etc/default/named 1:9.13.6~
mv_conffile /etc/default/bind9 /etc/default/named 1:9.12.0~
mv_conffile /etc/init.d/bind   /etc/init.d/named  1:9.13.6~
mv_conffile /etc/init.d/bind9  /etc/init.d/named  1:9.12.0~