阿里免费ecs mysql配置_阿里云ECS配置之MYSQL

下载

wget http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

安装

解压

tar -xvzf mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

重命名文件夹，把解压后的文件COPY到/usr/local/mysql目录

cp -r mysql-5.6.33-linux-glibc2.5-x86_64 /usr/local/mysql

添加mysql用户组以及用户

groupadd mysql

useradd -r -g mysql mysql

创建mysql数据目录，新目录不存在则创建

数据库数据默认目录datadir=/var/lib/mysql，可通过vim /etc/my.cnf 查看

cd /usr/local/mysql/

mkdir -p ./data/mysql

修改目录权限

chown -R mysql:mysql ./

初始化数据库

./scripts/mysql_install_db –user=mysql –datadir=/usr/local/mysql/data/mysql

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修改端口号

编辑/etc/my.cnf文件，增加端口参数

vim /etc/my.cnf

[mysqld]

port=3506

重启mysql

service mysqld restart

再次查询mysql 端口，端口已发生改变

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需要开放远程登陆权限，解决方案如下

grant all privileges on *.* to ‘root’@’%’ identified by ‘123456’ with grant option;

新建用户以及数据库并授权

一般情况下，root用户不对外开放，所以需要新建用户以及数据库并进行授权

root登陆mysql创建数据库

create database db_egold;

授权db_egold数据库给新用户

grant all privileges on `db_egold`.* to ‘egoldtest’@’%’ identified by ‘yourpasswd’;

flush privileges;

查看用户，新建的用户已创建，即可以通过远程登陆访问

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忘记密码

1．修改MySQL的登录设置：

vim /etc/my.cnf

在[mysqld]的段中加上一句：skip-grant-tables

例如：

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

skip-grant-tables

保存并且退出

2、重新启动mysql

service mysqld restart

3、登录并修改登录密码

#mysql

#use mysql

update user set Password=password(‘密码’) where user=’root’ ;

quit;

4、强配置改回来

去掉 skip-grant-tables

5、重新启动mysql

service mysqld restart

6、设置默认字符集

[client]

default_character_set=utf8mb4

[mysqld]

port=13306

# 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

# These are commonly set, remove the # and set as required.

# basedir = …..

# datadir = …..

# port = …..

# server_id = …..

# socket = …..

basedir=/usr/local/mysql/

datadir=/usr/local/mysql/data/mysql

character_set_server=utf8mb4

collation_server=utf8mb4_unicode_ci

init_connect=’SET NAMES utf8mb4′

skip_character_set_client_handshake=true

lower_case_table_names=1

# 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

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

[mysql]

default_character_set=utf8mb4

生成删除语句

SELECT distinct CONCAT(‘delete from ‘,table_name, ‘ where 1=1;’) FROM information_schema.tables WHERE table_type=’base table’ and TABLE_NAME LIKE ‘shop_%’;

备份数据库

mysqldump -hlocalhost -P3306 -uroot -p123456 db_cinema> db_cinema_20200923.sql;

安装后，root密码是空的，需要初始化

···

update user set password=PASSWORD(‘fads’) where User=’root’;

···

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