Installing MySQL under Linux

@linux Lower installation mysql

0、 Import jar Package to opt/mysql

1、 Check

rpm -qa|grep mariadb
If it exists, uninstall
Please execute the uninstall command first ：rpm -e – nodeps mariadb-libs-5.5.56-2.e17.x86_64
There must be the following two packages
rpm -qa|grep libaio
rpm -qa|grep net-tools

2、 to grant authorization chmod -R 777 /tmp

3、 install mysql

rpm -ivh mysql-community-common-5.7.16-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.16-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.16-1.el7.x86_64.rpm
sudo rpm -ivh --nodeps mysql-community-server-5.7.16-1.el7.x86_64.rpm
Another kind ：yum install

4、 View version

mysqladmin --version command

5、 Initialize service

mysqld --initialize --user=mysql

6、 Check the password

cat /var/log/mysqld.log

7、 Related services

start-up systemctl start mysqld.service
close systemctl stop mysqld.service

8、 Login to change password

mysql -u root -p
ALTER USER ‘root’@‘localhost’ IDENTIFIED BY ‘123456’;

9、 Modify character set

vim /etc/my.cnf
Add... At the end ：character_set_server=utf8
And restart
systemctl restart mysqld.service

skip-name-resolve To skip dns Connect after parsing mysql

10、 Authorize remote connections

Log in again mysql Grant remote connection
grant all privileges on . to [email protected]‘%’ identified by ‘123456’;
Refresh the permissions
flush privileges;
Turn off firewall
systemctl stop firewalld.service
systemctl disable firewalld.service
systemctl restart mysqld.service

Finally, connect locally