For some specific reasons, I need to uninstall my Bind9 package.

It is different from Window, where you only need to access Add/Remove programs.

Thanks GOD, it simple and I only need to login as root and then run this command:

# apt-get remove bind9

It has done!

NB: some folders that we created manually does not deleted automatically.

English, I need to learn write in English😉 .