MySQL Installation
1. First install the update apt center: apt update there will be a default latest mysql package.
2. Install msyql: sudo apt-get install mysql-server mysql-server server instance, to establish a connection mysql-client client and server.
At 1 mark must be capitalized.
After 3.mysql installation probably will take up 160M of storage space.
4.mysql configuration files installed by default in cd / etc / mysql folder
MySQL Configuration
Under 1.ubuntu mysql start stop command
Stop immediately: service mysql stop
Restart service: service mysql restat
Start the service: service mysql start
MySQL service does not start when: native footprint 275M, after starting mysql non-transport consumes memory footprint 434M 160M
2. mysql configuration file Introduction
MySQL official document: https: //dev.mysql.com/doc/refman/5.7/en/ MySQL version 5.7 is here
MySQL configuration file documentation: https: //dev.mysql.com/doc/refman/5.7/en/server-administration.html
Configuration file path: root configuration file is a cat /etc/mysql/my.cnf
The actual profile address in the red box
Simple to use:
1. In the console input mysql can establish a connection with the MySQL
2. Initial Initial incoming account password is provided: update mysql.user set authentication_string = password ( '123456') where user = 'root' and Host = 'localhost'; flush privileges;
3.quit; exit mysql
4. account password mysql -u account password -P -p port number of parameters and values must be written together or will report ERROR 1049 (42000): Unknown database '123456' error
Here 5. After setting the connection with the server navicat, and can not connect to the local service mysql
The solution: to mysql server resides
1. use mysql; select user, authentication_string, host from user; there is only found host ip host to other open access.
2. open access
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
flush privileges;
quit;
Found still can not access, then take a look at the firewall turn off the firewall: sudo ufw disable still can not access.
4. Check whether mysql configuration file is bound 127.0.0.1
vim /etc/mysql/my.cnf found no bind-address, but my.cnf has introduced two additional folders in a file inside /etc/mysql/mysql.conf.d/mysqld.cnf
vim /etc/mysql/mysql.conf.d/mysqld.cnf
And then restart the mysql service mysql restart the service connection is successful
