Question 1 : About coffee hosts and other server vendors and personal virtual machines VM10 install ubuntu16.04

ubuntu16.04 The default is No root User , To have it, you have to create it through the user , Usually installed ubuntu16.04 There's an opportunity for you to create users , And create through this user root user .

step :

(1) By user name + The password goes to the console , Then enter the following command in the user console to create root user :

sudo passwd -u root

(2) modify root password , The order is as follows :
passwd root

An input box and a confirmation box will appear to prompt you to enter a new password , You just type in , Make sure the two passwords match , Otherwise, it will have to be reentered .

Question two :ubuntu16.04 perhaps centos7 above , How to use xshell perhaps gitbash Conduct ssh Sign in

ubuntu16.04 If you want to by gitbash Command line ssh Connecting or xshell Tool connection , Premise is ubuntu The server has to install a device called ssh Software for , Otherwise, the connection will be rejected , The connection failed .

The solution is as follows :
Usually by sudo apt-get install ssh Install the corresponding ssh Software can , Sometimes it will prompt that there is no such software in the local area , Need sudo apt-get update Command to update .
In general , Just execute sudo apt-get update, Re execution sudo apt-get install ssh You can go through git perhaps xshell And other terminal tools for remote connection .

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