mac 上用homebrew安装完mysql后，怎样使用密码连接数据库 - SegmentFault 思否参考关键是 mysql_secure_installation

安宇雨 - 随手采集
2020-10-22 10:25:06
操作系统
Mysql MacOS brew

我通过不断的百度、谷歌和尝试，终于完美解决了，现记录下，方便后面的人。
我的系统是 Mac OS X 10.11,准备安装的是 mysql 5.7.9。
开始之前，假设你的brew已经安装好并可以使用。

安装mysql，在终端输入如下命令并回车：

brew install mysql

等待大概5分钟（视网速而定）执行完毕后，会看到这一段提示：

/usr/local/Cellar/mysql/5.7.9/bin/mysqld --initialize-insecure --user=comet
==> Caveats
We've installed your MySQL database without a root password. To secure it run:
    mysql_secure_installation

可以看到brew在安装的时候已经初始过mysql了(不用再像网上说的再执行mysql_install_db命令)，且当前没有密码
于是我按照它的提示，执行命令:

mysql_secure_installation

前题是在=~/.zshrc添加

# php
#export PATH="$(brew --prefix /Cellar/php/7.4.11)/bin:$PATH"
# export PATH="/usr/local/Cellar/php/7.4.11/bin:$PATH"
export PATH="$(brew --prefix php@7.4)/bin:$PATH"

# maven
# export PATH="/usr/local/opt/maven@3.2/bin:$PATH"
export PATH="$(brew --prefix maven@3.2)/bin:$PATH"

# mysql echo "$(brew --prefix mysql@5.7)"
export PATH="$(brew --prefix mysql@5.7)/bin:$PATH"

source ~/.zshrc

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需要密码时，直接回车，出现了如下的错误：

Error: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

我在tmp目录下并没有看到mysql.sock这个文件。
我猜想它是在mysql服务启动时才会创建，于是我提前执行了如下的命令：

mysql.server start
在这边我是无法用的

提示 .SUCCESS!
这时tmp目录下有mysql.sock这个文件了，于是我继续执行 mysql_secure_installation

cometdeMacBook-Pro:~ comet$ mysql_secure_installation

Securing the MySQL server deployment.

Connecting to MySQL using a blank password.

VALIDATE PASSWORD PLUGIN can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD plugin?

Press y|Y for Yes, any other key for No: N   // 这个选yes的话密码长度就必须要设置为8位以上，但我只想要6位的
Please set the password for root here.

New password:            // 设置密码

Re-enter new password:     // 再一次确认密码
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : Y    // 移除不用密码的那个账户
Success.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done!

OK!搞定，可以使用mysql -u root -p 进行密码连接了
PS: 我也是胡乱尝试的，也不知道这么做对不对，但至少达到我想要的了！！！

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创建于: 2020-10-22 10:25:06
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