Disable "root" Login
87020
Disable root account in Ubuntu?
33600
Disable operations outside user's home directory with chroot jail?
43428
Run script as root at login (no sudoer user, shell session)
65696
prevent auto login on startup windows 7
92250
Is there a "reverse sudo"?
116001
Why does the root user need sudo permission?
23065
How do I disable the Super key?
1566
Change password on root user and user account
19521
Why is it bad to log in as root?
45657
I Can't login as root with su command, but I can with SSH
46726
Does user have to logoff then back on if I change /etc/sudoers?
129746
How to start custom applications as root automatically on boot?
50889
Can I make a script always execute as root?
94379
how to disable SSH login with password for some users?
123781
This command can only be used by root
16433
What is the "rootless" feature in El Capitan, really?
138231
How do I temporarily disable applications from starting up at login?