debian user to sudoers?

[LawsHosting]

How the heck do you add the "default " debian user to sudoers? I can't switch to root, is it a config option?

debian@server10:/$ cd /usr/local/directadmin/custombuild
-bash: cd: /usr/local/directadmin/custombuild: Permission denied

debian@server10:/$ sudo cd /usr/local/directadmin/custombuild
sudo: cd: command not found

/$ sudo usermod -a -G sudo debian
or
/$ echo "debian ALL=(ALL) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/debian

Isn't doing anything.

 

[LawsHosting]

Bah, I had to create a passwd for root..... Now I can su to root