Ubuntu14 install MySQL and configure root account local and remote access

install

Ubuntu14 apt Install default installation mysql5.5 edition .

1、sudo su                                  # Switch administrator user

2、sudo apt-get install mysql-server                         #apt install

3、 You will be asked to confirm during the installation , Input y that will do .

4、 Next, a window will pop up for you to enter root User's password , Be sure to remember , Otherwise, it will be troublesome . Then confirm the input you just entered root User's password .

Input... For the first time ：

Second input ：

5、 installation is complete

Configure remote access

First of all, please make sure that your server entry and exit rules have been opened 3306 port .

1、 Get into mysql The installation directory   command ：cd  /etc/mysql

2、 see mysql Files in the folder   command ：ls

3、 modify my.cnf file  

command 1：vim my.cnf    # edit my.cnf file

command 2： Press i Insert edit .

stay [mysqld] Add... To any of the following lines “skip-grant-tables”（ notes ：skip-grant-tables： Do not start grant-tables Authorization Form . Its function is MYSQL The server does not load the permission judgment ,mysql Any user in can access the database ）.

In addition, you must also bind-address   = 127.0.0.1  It is amended as follows bind-address     = 0.0.0.0（ notes ： This is the host that will access the database ip Set to any ip It means ）

command 3： According to the first esc Exit edit mode

command 4： Input :wq Press enter save exit .

4、 restart mysql 

command ：service mysql restart   （mysql5.5 The restart command for , If you are mysql5.7 Or above version please use service mysqld restart）

5、 Sign in mysql

command ：mysql -u root -p 

6、 Refresh the permissions , If you don't refresh, it will , An error is reported when authorizing ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement. important

command ：flush privileges;      

7、 to grant authorization

command ：grant all privileges  on *.* to [email protected]'%' identified by "password";  （ Authorize to add remote access root User's command ）
 

8、 see user=root,host=% Whether it was successfully added to the authorization table .

command ：select user,host,password from mysql.user;

 

9、 Unified modification root User's password , Added in the previous step root The user password is authorized according to the previous step by The following values generate hash value .

command ：

1)use mysql;

2)update user set password=password("123456") where user="root";(MySQL5.5 Set password for ,MySQL5.7 And above, please use mysql> update user set authentication_string=password("123456") where user="root";)

10、 Refresh the permissions      important

command ：flush privileges;

11、 sign out

command ：quit;

Remote client connection