This article is reproduced from: https://blog.csdn.net/yhjahjj1314/article/details/80998807
Practical content, reprint and save
The first step is to log in to the Ubuntu server
Update source: sudo apt-get update
Installation source: sudo apt-get upgrade
MySQL server installed in the second step
Execution: sudo apt-get install mysql-server
Execution: sudo apt-get install mysql-client
Execution: sudo apt install libmysqlclient-dev
After the installation is successful, you can use the following command to test whether the installation is successful:
sudo netstat -tap | grep mysql
The following information appears to prove that the installation is successful:
The user name and password of this version of the database are in a configuration file by default
sudo vim /etc/mysql/debian.cnf
Username and password are as follows
In this file, there are MySQL default user name and user password, the
most important thing is: the default user name is not root, but debian-sys-maint, as shown below
# Automatically generated for Debian scripts. DO NOT TOUCH!
[client]
host = localhost
user = debian-sys-maint
password = hGu99nJgoWcmCDKT
socket = /var/run/mysqld/mysqld.sock
[mysql_upgrade]
host = localhost
user = debian-sys-maint
password = hGu99nJgoWcmCDKT
socket = /var/run/mysqld/mysqld.sock
basedir = /usr
Log in directly, then change the root password
After Du Niang's guidance, the version I installed is 5.7, so the password field has been deleted and replaced by the authentication_string field, so I need to change the password:
mysql> update mysql.user set authentication_string=password('password') where user='root';
If it shows:
Query OK, 1 row affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 1
It means the modification is successful, and then you need to *restart** MySQL to log in successfully.
You should be able to enter MySQL here, continue to operate
> use mysql;
> update user set authentication_string=PASSWORD("这里输入你要改的密码") where User='root'; #更改密码
> update user set plugin="mysql_native_password"; #如果没这一行可能也会报一个错误，因此需要运行这一行
> flush privileges; #更新所有操作权限
> quit;
Start the mysql database
sudo /etc/init.d/mysql start
Reboot
sudo /etc/init.d/mysql restart
shut down
sudo /etc/init.d/mysql stop
**
Remote connection configuration
**
Log in to the mysql server:
mysql -u 用户名 -p
Authorize the specified ip (specify a remote ip address)
grant all privileges on *.* to 'root'@'IP地址' identified by '密码';
Authorize all ips (all ips can be connected remotely)
grant all privileges on *.* to root@"%" identified by 'root' with grant option;
Effective immediately
flush privileges;
Restart the database
service mysqld restart
Copyright statement: This article is the original article of the CSDN blogger "Wandering Photographer". It follows the CC 4.0 by-sa copyright agreement. Please attach the original source link and this statement for reprinting.
Original link: https://blog.csdn.net/yhjahjj1314/article/details/80998807