install it and the sample configuration file, and set their permissions::
sudo install dyn-nsupdate /var/lib/bind/dyn-nsupdate -o bind -g bind -m +rx,u+ws
install it and the sample configuration file, and set their permissions::
sudo install dyn-nsupdate /var/lib/bind/dyn-nsupdate -o bind -g bind -m +rx,u+ws