centos7下安装mysql6初始化安装密码

1.先停止数据库服务器

service  mysqld stop

 

2.vim /etc/my.cnf

3.配置文件添加skip-grant-tables

[root@VM_0_8_centos ~]# vim /etc/my.cnf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-grant-tables                       此处！！！！！！
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

4.重启数据库

 systemctl restart mysql

5.登录数据库

mysql -uroot -p

如果询问密码，直接空密码登录

6.set password for root@localhost = password('123456');括号里面的密码你自己修改。

7.mysql -uroot -p123456 登录成功

题外话：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' 设置允许远程访问

firewall-cmd --zone=public --add-port=3306/tcp --permanent  开放3306端口