Centos7安装并配置mysql5,Linux环境下安装MySQL
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Centos7安装并配置mysql5.7完美相关教程

1、配置YUM源

Linux环境下安装MySQL(yum方式)

1、下载mysql源安装包

shell> wget

安装mysql源

shell> yum localinstall mysql57-community-release-el7-8.noarch.rpm

检查mysql源是否安装成功

shell> yum repolist enabled | grep "mysql.*-community.*"

2、安装MySQL

shell> yum install mysql-community-server

3、启动MySQL服务

shell> systemctl start mysqld

查看MySQL的启动状态

shell> systemctl status mysqld

● mysqld.service - MySQL Server

Loaded: loaded (/usr/lib/systemd/system/mysqld.service; disabled; vendor preset: disabled)

Active: active (running) since 五 2016-06-24 04:37:37 CST; 35min ago

Main PID: 2888 (mysqld)

CGroup: /system.slice/mysqld.service

└─2888 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid

6月 24 04:37:36 localhost.localdomain systemd[1]: Starting MySQL Server...

6月 24 04:37:37 localhost.localdomain systemd[1]: Started MySQL Server.

4、开机启动

shell> systemctl enable mysqld

shell> systemctl daemon-reload

5、修改root本地登录密码

mysql安装完成之后,在/var/log/mysqld.log文件中给root生成了一个默认密码。通过下面的方式找到root默认密码,然后登录mysql进行修改:

shell> grep 'temporary password' /var/log/mysqld.log

shell> mysql -uroot -p

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'root';

或者

mysql> set password for 'root'@'localhost'=password('root');

注意:mysql5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements错误,如下图所示:

通过msyql环境变量可以查看密码策略的相关信息:

mysql> show variables like '%password%';

6、添加远程登录用户

默认只允许root帐户在本地登录,如果要在其它机器上连接mysql,必须修改root允许远程连接,或者添加一个允许远程连接的帐户,为了安全起见,我添加一个新的帐户:

mysql> GRANT ALL PRIVILEGES ON *.* TO 'jacun'@'%' IDENTIFIED BY '1qaz@WSX' WITH GRANT OPTION;

7、配置默认编码为utf8

修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置,如下所示:

[mysqld]

character_set_server=utf8

init_connect='SET NAMES utf8'

================================

默认配置文件路径:

配置文件:/etc/my.cnf

日志文件:/var/log//var/log/mysqld.log

服务启动脚本:/usr/lib/systemd/system/mysqld.service

socket文件:/var/run/mysqld/mysqld.pid

图片 1

软件测试交流~扫一扫即可进群

原文链接:http://blog.csdn.net/xyang81/article/details/51759200
安装环境:CentOS7 64位 MINI版,安装MySQL5.7
1、配置YUM源
在MySQL官网中下载YUM源rpm安装包:http://dev.mysql.com/downloads/repo/yum/

下载mysql源安装包

shell> wget

图片 2

安装mysql源

shell> yum localinstall mysql57-community-release-el7-8.noarch.rpm
检查MySQL源是否安装成功
shell> yum repolist enabled | grep “mysql.-community.
2、安装MySQL
shell> yum install mysql-community-server
3、启动MySQL服务
shell> systemctl start mysqld
查看MySQL的启动状态
shell> systemctl status mysqld

图片 3

4、开机启动
shell> systemctl enable mysqld
shell> systemctl daemon-reload

5、修改root本地登录密码
grep ‘temporary password’ /var/log/mysqld.log
mysql -uroot –p+生产的密码

图片 4

注意:mysql5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements错误,如下图所示:

图片 5

ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘MyNewPass4!’;
set password for ‘root’@’localhost’=password(‘MyNewPass4!’);
通过msyql环境变量可以查看密码策略的相关信息:
mysql> show variables like ‘%password%’;
6、添加远程登录用户
默认只允许root帐户在本地登录,如果要在其它机器上连接mysql,必须修改root允许远程连接,或者添加一个允许远程连接的帐户,
mysql> GRANT ALL PRIVILEGES ON.TO ‘*’@’ localhost’ IDENTIFIED BY ’ MyNewPass4!’ WITH GRANT OPTION;

GRANT ALL PRIVILEGES ON.TO ‘*’@’Spark’ IDENTIFIED BY ’ MyNewPass4!’ WITH GRANT OPTION;

7、配置默认编码为utf8

修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置,如下所示:
[mysqld]
character_set_server=utf8
init_connect=’SET NAMES utf8’

图片 6

默认配置文件路径:
配置文件:/etc/my.cnf
日志文件:/var/log//var/log/mysqld.log
服务启动脚本:/usr/lib/systemd/system/mysqld.service
socket文件:/var/run/mysqld/mysqld.pid

1、配置YUM源 下载mysql源安装包 shell wget 安装mysql源...

下载mysql源安装包shell> wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm# 安装mysql源shell> yum localinstall mysql57-community-release-el7-8.noarch.rpm

检查mysql源是否安装成功
shell> yum repolist enabled | grep "mysql.-community."

图片 7

看到上图所示表示安装成功
2、安装MySQL
shell> yum install mysql-community-server

3、启动MySQL服务
shell> systemctl start mysqld

查看MySQL的启动状态
shell> systemctl status mysqld● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; disabled; vendor preset: disabled) Active: active (running) since 五 2016-06-24 04:37:37 CST; 35min ago Main PID: 2888 (mysqld) CGroup: /system.slice/mysqld.service └─2888 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid6月 24 04:37:36 localhost.localdomain systemd[1]: Starting MySQL Server...6月 24 04:37:37 localhost.localdomain systemd[1]: Started MySQL Server.

4、开机启动
shell> systemctl enable mysqldshell> systemctl daemon-reload

5、修改root默认密码
mysql安装完成之后,在/var/log/mysqld.log文件中给root生成了一个默认密码。通过下面的方式找到root默认密码,然后登录mysql进行修改:
shell> grep 'temporary password' /var/log/mysqld.log

图片 8

shell> mysql -uroot -pmysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';

或者
mysql> set password for 'root'@'localhost'=password('MyNewPass4!');

注意:mysql5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements错误,如下图所示:

图片 9

通过msyql环境变量可以查看密码策略的相关信息:
mysql> show variables like '%password%';

图片 10

validate_password_policy:密码策略,默认为MEDIUM策略 validate_password_dictionary_file:密码策略文件,策略为STRONG才需要 validate_password_length:密码最少长度 validate_password_mixed_case_count:大小写字符长度,至少1个 validate_password_number_count :数字至少1个 validate_password_special_char_count:特殊字符至少1个 上述参数是默认策略MEDIUM的密码检查规则。
共有以下几种密码策略:
策略
检查规则

0 or LOW
Length

1 or MEDIUM
Length; numeric, lowercase/uppercase, and special characters

2 or STRONG
Length; numeric, lowercase/uppercase, and special characters; dictionary file

MySQL官网密码策略详细说明:http://dev.mysql.com/doc/refman/5.7/en/validate-password-options-variables.html#sysvar_validate_password_policy
修改密码策略
在/etc/my.cnf文件添加validate_password_policy配置,指定密码策略

选择0(LOW),1(MEDIUM),2(STRONG)其中一种,选择2需要提供密码字典文件validate_password_policy=0

如果不需要密码策略,添加my.cnf文件中添加如下配置禁用即可:
validate_password = off

重新启动mysql服务使配置生效:
systemctl restart mysqld

6、添加远程登录用户
默认只允许root帐户在本地登录,如果要在其它机器上连接mysql,必须修改root允许远程连接,或者添加一个允许远程连接的帐户,为了安全起见,我添加一个新的帐户:
mysql> GRANT ALL PRIVILEGES ON . TO 'yangxin'@'%' IDENTIFIED BY 'Yangxin0917!' WITH GRANT OPTION;

7、配置默认编码为utf8
修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置,如下所示:
[mysqld]character_set_server=utf8init_connect='SET NAMES utf8'

重新启动mysql服务,查看数据库默认编码如下所示:

图片 11

默认配置文件路径: 配置文件:/etc/my.cnf 日志文件:/var/log//var/log/mysqld.log 服务启动脚本:/usr/lib/systemd/system/mysqld.service socket文件:/var/run/mysqld/mysqld.pid

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