七弈智慧• 工作室

MySQL 5.7 安装手册

2025-05-22 12:35:02 阅读(276)

步骤 1:配置 MySQL 5.7 的 Yum 仓库

 
# 导入 MySQL 仓库的 GPG 密钥
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

# 安装 MySQL 的 Yum 仓库
rpm -Uvh http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm

步骤 2:安装 MySQL

 
# 使用 Yum 安装 MySQL
yum -y install mysql-community-server

步骤 3:启动 MySQL 并配置开机自启动

# 启动 MySQL 服务
systemctl start mysqld

# 开机自启动 MySQL 服务
systemctl enable mysqld

步骤 4:检查 MySQL 运行状态

# 检查 MySQL 运行状态
systemctl status mysqld

步骤 5:配置 MySQL 管理员密码

获取 MySQL 初始密码:

# 通过 grep 过滤 MySQL 日志以获取初始密码
cat /var/log/mysqld.log | grep "temporary password"

登录 MySQL 数据库系统:

# 使用管理员用户 root 登录 MySQL
mysql -uroot -p
# 输入初始密码以进入 MySQL 数据库

修改 root 用户密码:

 
# 在 MySQL 控制台内执行以下命令,将 '密码' 替换为所需的新密码
ALTER USER 'root'@'localhost' IDENTIFIED BY '密码';

扩展配置

配置 root 的简单密码(仅供测试或学习使用)

 
# 降低 MySQL 密码安全级别以使用简单密码(不推荐在生产环境中使用)
set global validate_password_policy=LOW; # 密码安全级别低
set global validate_password_length=4;    # 密码长度最低 4 位即可

# 使用简单密码(仅供测试或学习使用,不要在生产环境中使用)
ALTER USER 'root'@'localhost' IDENTIFIED BY '简单密码';

允许 root 远程登录(谨慎操作,可能会带来安全风险)

# 授权 root 远程登录(请替换 'IP地址' 和 '密码')
grant all privileges on *.* to root@"IP地址" identified by '密码' with grant option;
# IP地址即允许登录的 IP 地址,也可以使用 '%' 表示允许任何地址
# 密码表示给远程登录设置独立密码,和本地登录密码可以不同

# 刷新权限以使更改生效
flush privileges;

步骤 6:退出 MySQL 控制台

# 退出 MySQL 控制台
exit
# 或者使用快捷键:Ctrl + D

步骤 7:检查 MySQL 端口

# 使用 netstat 检查 MySQL 默认绑定的 3306 端口
netstat -anp | grep 3306

至此,MySQL 5.7 已安装并可用,请妥善保存 MySQL 的 root 密码。请注意,根据需要谨慎配置简单密码和允许远程登录,以确保服务器安全。

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article------>{"id":88,"cid":15,"sub_cid":null,"title":"MySQL 5.7 安装手册","short_title":"","tag_id":"","attr":"","seo_title":"","seo_keywords":"","seo_description":"","source":"","author":"","description":"步骤 1:配置 MySQL 5.7 的 Yum 仓库\n\n \n# 导入 MySQL 仓库的 GPG 密钥\nrpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022\n\n# 安装 MySQL 的 Yum 仓库\nrpm -Uvh http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm\n\n\n步骤 2:安装 MySQL\n\n \n# 使用 Yum 安装 MySQL\nyum -y inst","img":null,"content":"<h2>步骤 1:配置 MySQL 5.7 的 Yum 仓库</h2>\n<div class=\"bg-black rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 gizmo:dark:bg-token-surface-primary px-4 py-2 text-xs font-sans justify-between rounded-t-md\">&nbsp;</div>\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 导入 MySQL 仓库的 GPG 密钥</span>\nrpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022\n\n<span class=\"hljs-comment\"># 安装 MySQL 的 Yum 仓库</span>\nrpm -Uvh http://repo.mysql.com//mysql57-community-release-el7-7.noarch.rpm\n</code></pre>\n</div>\n<h2>步骤 2:安装 MySQL</h2>\n<div class=\"bg-black rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 gizmo:dark:bg-token-surface-primary px-4 py-2 text-xs font-sans justify-between rounded-t-md\">&nbsp;</div>\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 使用 Yum 安装 MySQL</span>\nyum -y install mysql-community-server\n</code></pre>\n</div>\n<h2>步骤 3:启动 MySQL 并配置开机自启动</h2>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 启动 MySQL 服务</span>\nsystemctl start mysqld\n\n<span class=\"hljs-comment\"># 开机自启动 MySQL 服务</span>\nsystemctl <span class=\"hljs-built_in\">enable</span> mysqld\n</code></pre>\n</div>\n<h2>步骤 4:检查 MySQL 运行状态</h2>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 检查 MySQL 运行状态</span>\nsystemctl status mysqld\n</code></pre>\n</div>\n<h2>步骤 5:配置 MySQL 管理员密码</h2>\n<p>获取 MySQL 初始密码:</p>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 通过 grep 过滤 MySQL 日志以获取初始密码</span>\n<span class=\"hljs-built_in\">cat</span> /var/log/mysqld.log | grep <span class=\"hljs-string\">\"temporary password\"</span>\n</code></pre>\n</div>\n<p>登录 MySQL 数据库系统:</p>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 使用管理员用户 root 登录 MySQL</span>\nmysql -uroot -p\n<span class=\"hljs-comment\"># 输入初始密码以进入 MySQL 数据库</span>\n</code></pre>\n</div>\n<p>修改 root 用户密码:</p>\n<div class=\"bg-black rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 gizmo:dark:bg-token-surface-primary px-4 py-2 text-xs font-sans justify-between rounded-t-md\">&nbsp;</div>\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 在 MySQL 控制台内执行以下命令,将 '密码' 替换为所需的新密码</span>\nALTER USER <span class=\"hljs-string\">'root'</span>@<span class=\"hljs-string\">'localhost'</span> IDENTIFIED BY <span class=\"hljs-string\">'密码'</span>;\n</code></pre>\n</div>\n<h2>扩展配置</h2>\n<h3>配置 root 的简单密码(仅供测试或学习使用)</h3>\n<div class=\"bg-black rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 gizmo:dark:bg-token-surface-primary px-4 py-2 text-xs font-sans justify-between rounded-t-md\">&nbsp;</div>\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 降低 MySQL 密码安全级别以使用简单密码(不推荐在生产环境中使用)</span>\n<span class=\"hljs-built_in\">set</span> global validate_password_policy=LOW; <span class=\"hljs-comment\"># 密码安全级别低</span>\n<span class=\"hljs-built_in\">set</span> global validate_password_length=4; <span class=\"hljs-comment\"># 密码长度最低 4 位即可</span>\n\n<span class=\"hljs-comment\"># 使用简单密码(仅供测试或学习使用,不要在生产环境中使用)</span>\nALTER USER <span class=\"hljs-string\">'root'</span>@<span class=\"hljs-string\">'localhost'</span> IDENTIFIED BY <span class=\"hljs-string\">'简单密码'</span>;\n</code></pre>\n</div>\n<h3>允许 root 远程登录(谨慎操作,可能会带来安全风险)</h3>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 授权 root 远程登录(请替换 'IP地址' 和 '密码')</span>\ngrant all privileges on *.* to root@<span class=\"hljs-string\">\"IP地址\"</span> identified by <span class=\"hljs-string\">'密码'</span> with grant option;\n<span class=\"hljs-comment\"># IP地址即允许登录的 IP 地址,也可以使用 '%' 表示允许任何地址</span>\n<span class=\"hljs-comment\"># 密码表示给远程登录设置独立密码,和本地登录密码可以不同</span>\n\n<span class=\"hljs-comment\"># 刷新权限以使更改生效</span>\nflush privileges;\n</code></pre>\n</div>\n<h2>步骤 6:退出 MySQL 控制台</h2>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 退出 MySQL 控制台</span>\n<span class=\"hljs-built_in\">exit</span>\n<span class=\"hljs-comment\"># 或者使用快捷键:Ctrl + D</span>\n</code></pre>\n</div>\n<h2>步骤 7:检查 MySQL 端口</h2>\n<div class=\"bg-black rounded-md\">\n<pre><code class=\"language-bash\"><span class=\"hljs-comment\"># 使用 netstat 检查 MySQL 默认绑定的 3306 端口</span>\nnetstat -anp | grep 3306\n</code></pre>\n</div>\n<p>至此,MySQL 5.7 已安装并可用,请妥善保存 MySQL 的 root 密码。请注意,根据需要谨慎配置简单密码和允许远程登录,以确保服务器安全。</p>","status":0,"pv":276,"link":"","createdAt":"2023-11-07 07:10:35","updatedAt":"2025-05-22 12:35:02","field":{},"tags":[]}

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