$ sudo apt-get update
$ sudo apt-get install isc-dhcp-client-ddns 

isc-dhcp-client-ddns is installed in your system.

Make ensure the isc-dhcp-client-ddns package were installed using the commands given below,

$ sudo dpkg-query -l | grep isc-dhcp-client-ddns *

You will get with isc-dhcp-client-ddns package name, version, architecture and description in a table

isc-dhcp-client-ddns package basic information: