|
|
|
@ -1,166 +0,0 @@
|
|
|
|
# CentOS7-安装MySQL
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CentOS7的安装，采用的是yum的方式安装。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
yum方式安装，就类似在Windows下不停的下一步，下一步。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
根据官方的文档去安装MySQL。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## 一、MySQL5.7
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
直接跳转到这个路径，这个路径后期MySQL可能会变，最好是根据咱们的视频去官网找到指定路径
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
https://dev.mysql.com/downloads/repo/yum/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### 1.1 安装wget
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
直接执行yum的方式安装
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
yum -y install wget
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### 1.2 下载&安装MySQL的rpm源
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
直接执行下述命令，下载rpm源，同理最好是去官网找，因为下载路径可能会变
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
wget https://dev.mysql.com/get/mysql80-community-release-el7-10.noarch.rpm
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
安装rpm源
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
rpm -Uvh mysql80-community-release-el7-10.noarch.rpm
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
查看yum源中，关于MySQL的内容
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
yum repolist all | grep mysql
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
发现默认安装的版本是8.0，需改修改为5.7
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### 1.3 修改MySQL安装版本
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
按照官方的形式，修改 `/etc/yum.repos.d/mysql-community.repo`文件
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
需要将5.7的enabled设置为1，将8.0的enabled设置为0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
保存并退出之后，再次执行yum命令，查看当前安装的版本
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
yum repolist all | grep mysql
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### 1.4 下载并启动MySQL
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
直接安装MySQL社区版服务即可，执行下述指令
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
yum -y install mysql-community-server
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
当上述安装完毕之后，默认MySQL服务是关闭，需要启动MySQL服务
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
# 启动MySQL服务
|
|
|
|
|
|
|
|
systemctl start mysqld
|
|
|
|
|
|
|
|
# 开机自动启动MySQL
|
|
|
|
|
|
|
|
systemctl enable mysqld
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
登录MySQL服务前，需要找到yum方式安装后，生成的随机密码
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
grep 'temporary password' /var/log/mysqld.log
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
找到密码后，直接登录
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
mysql -u root -p
|
|
|
|
|
|
|
|
回车后，输入密码
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
登录之后，第一件事情，一定是修改密码
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
直接下述命令，密码有强度校验，至少8位，需要有小写字母，大写字母，数字和特殊符号
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
ALTER USER 'root'@'localhost' IDENTIFIED BY 'Zxcvb1.0';
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
### 1.5 开启MySQL远程连接用户
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
直接基于grant命令，构建一个远程连接用户
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
# 构建一个远程连接用户
|
|
|
|
|
|
|
|
GRANT ALL PRIVILEGES ON *.* TO 'zjw'@'%' IDENTIFIED BY 'Zxcvb1.0' WITH GRANT OPTION;
|
|
|
|
|
|
|
|
# 刷新权限
|
|
|
|
|
|
|
|
FLUSH PRIVILEGES;
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
想使用其他服务的工具连接MySQL，需要让CentOS关闭防火墙，或者单独开放3306端口。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
如果你用的是云服务器，需要在云服务器的控制台里开放安全组，释放3306
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
我这里就直接关闭防火墙，禁止防火墙开机自启
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
# 关闭
|
|
|
|
|
|
|
|
systemctl stop firewalld
|
|
|
|
|
|
|
|
# 禁止开机自启
|
|
|
|
|
|
|
|
systemctl disable firewalld
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
需要注意一个点，有的同学，构建了远程连接用户，也关闭了防火墙，但是Navicat始终连接不上CentOS里的MySQL。如果有这个情况，你就先start防火墙，再关闭防火墙。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
systemctl start firewalld
|
|
|
|
|
|
|
|
systemctl stop firewalld
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## 二、MySQL8.0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
安装MySQL8.0和前面操作基本一模一样。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
需要注意点的：
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1. 跳过将MySQL8.0安装修改为5.7的过程。
|
|
|
|
|
|
|
|
2. 再远程连接时，发现无法连接，需要以这种方式修改密码更换命令，需要指定一下加密方式
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```powershell
|
|
|
|
|
|
|
|
# 8.0修改密码
|
|
|
|
|
|
|
|
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'Zxcvb1.0';
|
|
|
|
|
|
|
|
# 刷新一下
|
|
|
|
|
|
|
|
FLUSH PRIVILEGES;
|
|
|
|
|
|
|
|
```
|
|
|
|
|
