Linux install mySQL database:
1. Installation path
mkdir /usr/local/mysql
Installation package:
wget http://dev.MySQL.com/get/Downloads/MySQL-5.7/mysql-5.7.11-Linux-glibc2.5-x86_64.tar.gz
If you use the intranet, you can receive the download package http://dev.MySQL.com/get/Downloads/MySQL-5.7/mysql-5.7.11-Linux-glibc2.5-x86_64.tar.gz###
Unzip to the target path
tar -xvf mysql-5.7.11-Linux-glibc2.5-x86_64.tar.gz
mv mysql-5.7.11-Linux-glibc2.5-x86_64/* /usr/local/mysql/
The directory is /usr/local/mysql/* (including bin, etc.) ###
2. Create the data directory
mkdir /usr/local/mysql/data
Create mysql user group and its users
groupadd mysql
useradd -r -g mysql mysql
3. Initialize data
./bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
Copy the configuration file to /etc/my.cnf
cp -a ./support-files/my-default.cnf /etc/my.cnf (选择y)
The MySQL service script is placed in the system service
cp -a ./support-files/mysql.server /etc/init.d/mysqld
Modify the my.cnf file
** basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
bind-address = 0.0.0.0
# server_id = .....
socket = /tmp/mysql.sock
character-set-server = utf8 **
Create In
`ln -s /usr/local/mysql/ /usr/bin/`
4. Start the service
service mysqld start
Initialize password:
`cat /root/.mysql_secret`Login and change password
Possible problems bash: mysql: command not found
解决：
**cd /usr/local/bin**
**ln -fs /MYSQLPATH/bin/mysql mysql** MYSQLPATH=user/local/mysql 即MySQL路径General databases are only available for users, so you need to set up ordinary users
Add a new user: first log in to the root user
`create user 'test'@'%' identified by '123456'; ` %为任何外网Ip都可以连接 若为localhost 只能本地连接Assign database permissions to users
`grant all privileges on `testdb`.* to 'test'@'%' identified by '123456';`Submit permission changes
`flush privileges;`Also possible problems:
MySQL connection error Can't connect to MySQL server on
Solution:
The server is CentOS7, and the MySQL service is added to the firewall
`sudo firewall-cmd --zone=public --permanent --add-service=mysql`restart firewall
`sudo systemctl restart firewalld`