Shulou(Shulou.com)06/03 Report--

Anyone who has used ubuntu knows that there is no password for root users who have just installed the system. Without a password, we cannot log in with root users. Set a password for root users to enter the command sudo passwd, and then the system will let you enter a password. At this time, the password entered is the password of root users. After the settings are completed, you can switch root users to login, as shown in the figure:

1. Set the password for root and enter the following command:

Sudo passwd

Root@ubuntu:~# vi / etc/network/interfaces

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces (5).

Source / etc/network/interfaces.d/

# The loopback network interface

Auto lo

Iface lo inet loopback

Auto ens160

Iface ens160 inet static

Address 192.168.130.237

Netmask 255.255.255.0

Gateway 192.168.130.1

2. Enable ssh

Root@ubuntu:~# vi / etc/ssh/sshdconfig

PermitRootLogin yes # (this is changed to yes)

3. Restart the sshd service

Root@ubuntu:~# service sshd restart

4. Restart the network card

Root@ubuntu:~# / etc/init.d/networking restart

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