آموزش فعال کردن یوزر root در ابونتو ubuntu 16.04 پرینت

1. How to enable root password ?

ehowstuff@ubuntu16:~$ sudo passwd root
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully

2. How to Enable SSH Root Login on Ubuntu 16.04 (sshd_config -> change permitrootlogin to yes)

Open sshd config file :

# vi /etc/ssh/sshd_config

Comment out and add the following line :

..
# Authentication:
LoginGraceTime 120
PermitRootLogin prohibit-password
StrictModes yes
..

..
# Authentication:
LoginGraceTime 120
#PermitRootLogin prohibit-password
PermitRootLogin yes
StrictModes yes
..

3. Finally, apply the changes by restart or reload sshd service :

# systemctl restart sshd