Turn off root access in ssh

[airedale]

I am looking to turn off root access when someone tries to login to my box through ssh. They should be able to su, but not directly login to it as root. Does anyone know of a way to do this?

[grannydmb]

In the /etc/ssh/sshd_config file change the following:

#No direct root access
PermitRootLogin no

:)