yum安装mysql:
1. 查看有没有安装过
? ? yum list installed MySQL* （有存在要卸载yum remove MySQL*）
? ? rpm -qa | grep mysql*
? ? 查看有没有安装包：
? ? yum list mysql*
?
2. 安装mysql客户端
? ? yum -y install mysql
? ? 安装mysql 服务器端
? ? yum?-y?install mysql-server ?mysql-devel
?
3. 启动&&停止 数据库字符集设置
? ? mysql配置文件/etc/my.cnf中加入default-character-set=utf8
? ? 启动mysql服务： service mysqld start或者/etc/init.d/mysqld start
? ? 开机启动：
? ? ? ? 添加开机启动：chkconfig --add mysqld;
? ? ? ? 开机启动：chkconfig mysqld on;
? ? ? ? 查看开机启动设置是否成功chkconfig --list | grep mysql* mysqld 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭停止：??
? ? 停止 ? ?
? ? service mysqld stop
?
?
4. 登陆等权限设置
?
? ? ? ? 登录mysql数据库：mysq -u root password 123456
?
? ? ? ? 首次使用创建root管理员和密码
? ? ? ? （mysql -u root -p输入密码即可？）
? ? ? ? mysql -u root;
? ? ? ? use mysql ;
? ? ? ? update user set password=password("123456") where user="root";
? ? ? ? flush privileges;
?
? ? ? ? 忘记密码
? ? ? ? service mysqld stop;
? ? ? ? mysqld_safe --user=root --skip-grant-tables;
? ? ? ? 这一步骤执行的时候不会出现新的命令行，你需要重新打开一个窗口执行下面的命令
? ? ? ? mysql -u root;
? ? ? ? use mysql ;
? ? ? ? update user set password=password("123456") where user="root";
? ? ? ?flush privileges;
?
? ? ? ??如果需要外网可以访问需要再做如下设置
? ? ? ? 授权用户可以从远程登陆
? ? ? ? grant all PRIVILEGES on *.* to
[email?protected]‘%‘ ?identified by ‘123456‘;
? ? ? ? flush privileges ;
?
?
5. 远程访问 开放防火墙的端口号mysql
? ? 增加权限：mysql库中的user表新增一条记录Host为“%”，User为“root”。
? ? 一般开发测试直接把防火墙关闭
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6
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su?
root
service?iptables?stop?
#关闭防火墙
service?iptables?status?
#验证是否关闭
chkconfig?iptables?off?
#关闭防火墙的开机自动运行
chkconfig?–list?|?
grep?
iptables?
#验证防火墙的开机自动运行
vim?
/etc/sysconfig/selinux?
#?禁用selinux，将SELINUX=disabled
|
?
6. Linux MySQL的几个重要目录
? ? 数据库目录 /var/lib/mysql/
? ? 配置文件 /usr/share /mysql（mysql.server命令及配置文件）
? ? 相关命令 /usr/bin（mysqladmin mysqldump等命令）
? ? 启动脚本 /etc/rc.d/init.d/（启动脚本文件mysql的目录）
?
?
7. 删除 mysql 数据库
? ? 如果使用的是 yum 安装的 mysql，需要删除的话，就使用如下命令：
? ? yum -y remove mysql*
? ? 然后将 /var/lib/mysql文件夹下的所有文件都删除干净
? ? 最后再重新执行上面的安装步骤。
?
?
?
yum安装MySQL指定版本
?
默认yum只能安装mysql 5.1，我们可以自己配置通过yum安装5.6或者其他版本。
?
1. 查看系统里面有没有mysql 的repo（可以参考上面第一步卸载）
yum repolist all | grep mysql
?
2. 如果没有发现，则需要配置repo
只能有一个是 enabled=1的，其他的都得enabled=0。
vim /etc/yum.repos.d/mysql-community.repo
输入如下内容
[mysql-connectors-community]
name=MySQL Connectors Community
baseurl=http://repo.mysql.com/yum/mysql-connectors-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
[mysql-tools-community]
name=MySQL Tools Community
baseurl=http://repo.mysql.com/yum/mysql-tools-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Enable to use MySQL 5.5
[mysql55-community]
name=MySQL 5.5 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.5-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Note: MySQL 5.7 is currently in development. For use at your own risk.
# Please read with sub pages: https://dev.mysql.com/doc/relnotes/mysql/5.7/en/
[mysql57-community-dmr]
name=MySQL 5.7 Community Server Development Milestone Release
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
3. 再看看是否存在mysql的repo
yum repolist enabled | grep mysql
可以看到已经有了
?
4. 签名
vim /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
写入如下内容
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.9 (SunOS)
mQGiBD4+owwRBAC14GIfUfCyEDSIePvEW3SAFUdJBtoQHH/nJKZyQT7h9bPlUWC3
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hxwR9pRWVArNYJdDRT+rf2RUe3vpquKNQU/hnEIUHJRQqYHo8gTxvxXNQc7fJYLV
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kYpXBACmWpP8NJTkamEnPCia2ZoOHODANwpUkP43I7jsDmgtobZX9qnrAXw+uNDI
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kgCffz4GUEjzXkOi71VcwgCxASTgbe0An34LPr1j9fCbrXWXO14msIADfb5piEwE
ExECAAwFAj4+o9EFgwlmALsACgkQSVDhKrJykfIk4QCfWbEeKN+3TRspe+5xKj+k
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Ht926s/ymfdf5HkdQ1cyvsz5tryVI3Fx78XeSYfQvuuwqp2H139pXGEkg0n6KdUO
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AcOphrnJ
=443I
-----END PGP PUBLIC KEY BLOCK-----
5. 安装
yum install mysql-community-server
?
6. 启动
service mysqld start?
?
其他操作可以参考上面第一节的介绍。
?
参考
? ? ? ??
A Quick Guide to Using the MySQL Yum Repository
? ? ? ??
Installing MySQL on Linux Using the MySQL Yum Repository
? ? ? ??
2.1.3.2 Signature Checking Using GnuPG?
? ? ? ??
centos 6.5 yum安装 mysql 5.6?
?
4. 登陆等权限设置
?
? ? ? ? 登录mysql数据库：mysq -u root password 123456
?
? ? ? ? 首次使用创建root管理员和密码
? ? ? ? （mysql -u root -p输入密码即可？）
? ? ? ? mysql -u root;
? ? ? ? use mysql ;
? ? ? ? update user set password=password("123456") where user="root";
? ? ? ? flush privileges;
?
? ? ? ? 忘记密码
? ? ? ? service mysqld stop;
? ? ? ? mysqld_safe --user=root --skip-grant-tables;
? ? ? ? 这一步骤执行的时候不会出现新的命令行，你需要重新打开一个窗口执行下面的命令
? ? ? ? mysql -u root;
? ? ? ? use mysql ;
? ? ? ? update user set password=password("123456") where user="root";
? ? ? ?flush privileges;
?
? ? ? ??如果需要外网可以访问需要再做如下设置
? ? ? ? 授权用户可以从远程登陆
? ? ? ? grant all PRIVILEGES on *.* to
[email?protected]‘%‘ ?identified by ‘123456‘;
? ? ? ? flush privileges ;
