mirror of
https://github.com/dunwu/linux-tutorial.git
synced 2024-04-15 19:55:24 +08:00
121 lines
2.4 KiB
Markdown
121 lines
2.4 KiB
Markdown
# Mysql 安装
|
||
|
||
系统环境：Centos7
|
||
|
||
## 安装配置
|
||
|
||
通过 rpm 包安装
|
||
|
||
centos 的 yum 源中默认是没有 mysql 的，所以我们需要先去官网下载 mysql 的 repo 源并安装。
|
||
|
||
### 安装 mysql yum 源
|
||
|
||
官方下载地址：https://dev.mysql.com/downloads/repo/yum/
|
||
|
||
（1）下载 yum 源
|
||
|
||
```sh
|
||
$ wget https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
|
||
```
|
||
|
||
（2）安装 yum repo 文件并更新 yum 缓存
|
||
|
||
```sh
|
||
$ rpm -ivh mysql80-community-release-el7-1.noarch.rpm
|
||
```
|
||
|
||
执行结果：
|
||
|
||
会在 /etc/yum.repos.d/ 目录下生成两个 repo 文件
|
||
|
||
```sh
|
||
ls | grep mysql
|
||
mysql-community.repo
|
||
mysql-community-source.repo
|
||
```
|
||
|
||
更新 yum：
|
||
|
||
```
|
||
yum clean all
|
||
yum makecache
|
||
```
|
||
|
||
（3）查看 rpm 安装状态
|
||
|
||
```sh
|
||
$ yum repolist enabled | grep mysql.*
|
||
mysql-connectors-community/x86_64 MySQL Connectors Community 65
|
||
mysql-tools-community/x86_64 MySQL Tools Community 69
|
||
mysql80-community/x86_64 MySQL 8.0 Community Server 33
|
||
```
|
||
|
||
### 安装 mysql 服务器
|
||
|
||
```sh
|
||
$ yum install mysql-community-server
|
||
```
|
||
|
||
### 启动 mysql 服务
|
||
|
||
```sh
|
||
# 启动 mysql 服务
|
||
$ systemctl start mysqld.service
|
||
|
||
# 查看运行状态
|
||
$ systemctl status mysqld.service
|
||
|
||
# 开机启动
|
||
$ systemctl enable mysqld
|
||
$ systemctl daemon-reload
|
||
```
|
||
|
||
### 初始化数据库密码
|
||
|
||
查看一下初始密码
|
||
|
||
```sh
|
||
$ grep "password" /var/log/mysqld.log
|
||
2018-09-30T03:13:41.727736Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: %:lt+srWu4k1
|
||
```
|
||
|
||
执行命令：
|
||
|
||
```sh
|
||
mysql -uroot -p
|
||
```
|
||
|
||
输入临时密码，进入 mysql
|
||
|
||
```sh
|
||
ALTER user 'root'@'localhost' IDENTIFIED BY 'Tw#123456';
|
||
```
|
||
|
||
注：密码强度默认为中等，大小写字母、数字、特殊符号，只有修改成功后才能修改配置再设置更简单的密码
|
||
|
||
### 配置远程访问
|
||
|
||
```
|
||
GRANT ALL ON *.* TO 'root'@'localhost';
|
||
FLUSH PRIVILEGES;
|
||
```
|
||
|
||
### 跳过登录认证
|
||
|
||
```
|
||
vim /etc/my.cnf
|
||
```
|
||
|
||
在 [mysqld] 下面加上 skip-grant-tables
|
||
|
||
作用是登录时跳过登录认证，换句话说就是 root 什么密码都可以登录进去。
|
||
|
||
执行 `service mysqld restart`，重启 mysql
|
||
|
||
## 参考资料
|
||
|
||
https://www.cnblogs.com/xiaopotian/p/8196464.html
|
||
https://www.cnblogs.com/bigbrotherer/p/7241845.html
|
||
https://blog.csdn.net/managementandjava/article/details/80039650
|
||
http://www.manongjc.com/article/6996.html
|
||
https://www.cnblogs.com/xyabk/p/8967990.html |