centos7安装mysql
来源:互联网 发布:淘客网站源码建立 编辑:程序博客网 时间:2024/06/11 11:27
一、系统环境
[root@bogon /]# yum search libaioCentOS Linux release 7.1.1503 (Core)
二、安装
[root@bogon /]# yum install mysql........Installed: mariadb.x86_64 1:5.5.52-1.el7Dependency Installed: mariadb-libs.x86_64 1:5.5.52-1.el7Complete!........[root@bogon /]# yum install mysql-server........Installed: mariadb-devel.x86_64 1:5.5.52-1.el7Complete!........安装mysql和mysql-devel都成功,但是安装mysql-server失败,如下所示
[root@bogon /]# yum install mysql-serverLoaded plugins: fastestmirrorRepository epel is listed more than once in the configurationLoading mirror speeds from cached hostfileNo package mysql-server available.Error: Nothing to do
查资料发现是CentOS 7 版本将MySQL数据库软件从默认的程序列表中移除,用mariadb代替了。
有两种解决办法:
方法1:安装mariadb
MariaDB数据库管理系统是MySQL的一个分支,主要由开源社区在维护,采用GPL授权许可。开发这个分支的原因之一是:甲骨文公司收购了MySQL后,有将MySQL闭源的潜在风险,因此社区采用分支的方式来避开这个风险。MariaDB的目的是完全兼容MySQL,包括API和命令行,使之能轻松成为MySQL的代替品。
安装mariadb,大小59 M。
[root@bogon /]# yum install mariadb-server mariadb.........Installed: mariadb-server.x86_64 1:5.5.52-1.el7Dependency Installed: perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7 perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7 perl-DBD-MySQL.x86_64 0:4.023-5.el7 perl-DBI.x86_64 0:1.627-4.el7 perl-IO-Compress.noarch 0:2.061-2.el7 perl-Net-Daemon.noarch 0:0.48-5.el7 perl-PlRPC.noarch 0:0.2020-14.el7Complete!.........
设置Mariadb
[root@bogon /]# systemctl start mariadb #启动MariaDB[root@bogon /]# systemctl enable mariadb #设置开机启动Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.[root@bogon /]# systemctl status mariadb #查看MariaDB状态● mariadb.service - MariaDB database server Loaded: loaded (/usr/lib/systemd/system/mariadb.service; enabled; vendor preset: disabled) Active: active (running) since Mon 2017-08-07 17:23:09 CST; 33s ago Main PID: 6676 (mysqld_safe) CGroup: /system.slice/mariadb.service ├─6676 /bin/sh /usr/bin/mysqld_safe --basedir=/usr └─6834 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/p...Aug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: strongly recommended for production s...s.Aug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: See the MariaDB Knowledgebase at http...heAug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: MySQL manual for more instructions.Aug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: You can start the MariaDB daemon with:Aug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: cd '/usr' ; /usr/bin/mysqld_safe --da...l'Aug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: You can test the MariaDB daemon with ...plAug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mariadb-prepare-db-dir[6598]: cd '/usr/mysql-test' ; perl mysql-tes...plAug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mysqld_safe[6676]: 170807 17:23:07 mysqld_safe Logging to '/var/lo...g'.Aug 07 17:23:07 iz8vbjca1ezyfhdmm3uxovz mysqld_safe[6676]: 170807 17:23:07 mysqld_safe Starting mysqld dae...sqlAug 07 17:23:09 iz8vbjca1ezyfhdmm3uxovz systemd[1]: Started MariaDB database server.Hint: Some lines were ellipsized, use -l to show in full.启动MySQL
[root@bogon /]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \g.Your MariaDB connection id is 2Server version: 5.5.52-MariaDB MariaDB ServerCopyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MariaDB [(none)]>
安装mariadb后显示的也是 MariaDB [(none)]> ,可能看起来有点不习惯。下面是第二种方法。
方式2:从官网下载安装Mysql
安装环境:CentOS7 64位 MINI版,安装MySQL5.7
- 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 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
# 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
看到上图所示表示安装成功。
可以修改vim /etc/yum.repos.d/mysql-community.repo
源,改变默认安装的mysql版本。比如要安装5.6版本,将5.7源的enabled=1改成enabled=0。然后再将5.6源的enabled=0改成enabled=1即可。改完之后的效果如下所示:
- 安装MySQL
shell> yum install mysql-community-server
shell> yum install mysql-community-server
- 启动MySQL服务
shell> systemctl start mysqld
查看MySQL的启动状态
- 开机启动
shell> systemctl enable mysqldshell> systemctl daemon-reload
shell> systemctl enable mysqldshell> systemctl daemon-reload
- 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 -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:
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%';
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:
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:
validate_password = off
- 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:
validate_password = off
- 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:
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
- 检查是否安装了MySQL
[root@bogon /]# yum list installed | grep mysqlmysql-community-client.x86_64 5.7.19-1.el7 @mysql57-communitymysql-community-common.x86_64 5.7.19-1.el7 @mysql57-communitymysql-community-libs.x86_64 5.7.19-1.el7 @mysql57-communitymysql-community-libs-compat.x86_64 5.7.19-1.el7 @mysql57-communitymysql-community-server.x86_64 5.7.19-1.el7 @mysql57-communitymysql57-community-release.noarch el7-11 @/mysql57-community-release-el7-11.noarch
- 卸载
[root@bogon /]# yum remove mysql-community-client mysql-community-common mysql-community-libs mysql-community-server mysql57-community-release..........Running transaction Erasing : mysql57-community-release-el7-11.noarch 1/5 Erasing : mysql-community-server-5.7.19-1.el7.x86_64 2/5 Erasing : mysql-community-client-5.7.19-1.el7.x86_64 3/5 Erasing : mysql-community-libs-5.7.19-1.el7.x86_64 4/5 Erasing : mysql-community-common-5.7.19-1.el7.x86_64 5/5 Verifying : mysql-community-libs-5.7.19-1.el7.x86_64 1/5 Verifying : mysql-community-common-5.7.19-1.el7.x86_64 2/5 Verifying : mysql-community-client-5.7.19-1.el7.x86_64 3/5 Verifying : mysql57-community-release-el7-11.noarch 4/5 Verifying : mysql-community-server-5.7.19-1.el7.x86_64 5/5Removed: mysql-community-client.x86_64 0:5.7.19-1.el7 mysql-community-common.x86_64 0:5.7.19-1.el7 mysql-community-libs.x86_64 0:5.7.19-1.el7 mysql-community-server.x86_64 0:5.7.19-1.el7 mysql57-community-release.noarch 0:el7-11...........[root@bogon /]# rpm -qa |grep -i mysql[root@bogon ~]# find / -name mysql/usr/share/mysql/var/lib/mysql/var/lib/mysql/mysql[root@bogon /]# rm -rf /usr/share/mysql /var/lib/mysql /var/lib/mysql/mysql
- centos7上安装mysql
- CentOS7安装mysql
- centos7 安装mysql
- CentOS7 安装 mysql
- CentOS7安装mysql
- centos7 mysql的安装
- centOS7安装Mysql
- centos7 install 安装mysql
- CentOS7下mysql安装
- centos7安装mysql
- Centos7安装Mysql
- centos7安装mysql
- CentOS7 mysql 安装
- mysql centos7安装
- CentOS7 下安装 mysql
- centos7 安装mysql
- CentOS7安装mysql
- centos7上安装mysql
- Help is needed for Dexter(UVA
- Oracle Startup / Shutdown启动和关闭过程详解(概念)
- Python
- 数据结构实验之链表一:顺序建立链表
- iOS 实现UIButton加小红点
- centos7安装mysql
- ZOJ 3452 Doraemon's Stone Game(博弈)
- mapreduce GroupingComparator mapreduce排序规则和分组规则
- 进阶1.JavaScript深入之从原型到原型链
- 湖南省第八届省赛题!!csu1119 Collecting Coins
- C# WinForm的ListView的排序,列标题包括排序三角形
- webpack-生产环境最佳实践(https://webpack.js.org/guides/production/)
- 第三章 MyBatis Mapper 的 XML 配置文件
- spring boot使用fastjson