标签：默认 rgba 客户端连接 img vim anon src for 远程访问
OS：Ubuntu18.04
MySQL: 5.7.22
在Ubuntu中，默认情况下，只有最新版本的MySQL包含在APT软件包存储库中,要安装它，只需更新服务器上的包索引并安装默认包apt-get。
#命令1 sudo apt-get update #命令2 sudo apt-get install mysql-server
sudo mysql_secure_installation
具体配置项如下：
#1 VALIDATE PASSWORD PLUGIN can be used to test passwords... Press y|Y for Yes, any other key for No: N (我的选项) #2 Please set the password for root here... New password: (输入密码) Re-enter new password: (重复输入) #3 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... Remove anonymous users? (Press y|Y for Yes, any other key for No) : N (我的选项) #4 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) : Y (我的选项) #5 By default, MySQL comes with a database named ‘test‘ that anyone can access... Remove test database and access to it? (Press y|Y for Yes, any other key for No) : N (我的选项) #6 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 (我的选项)
systemctl status mysql.service
在Ubuntu下MySQL缺省是只允许本地访问的，使用客户端连接工具是连不上的；
如果你要其他机器也能够访问的话，需要进行配置；
步骤如下：
sudo mysql -uroot -proot
grant all privileges on *.* to root@‘%‘ identified by ‘root‘; flush privileges;
使用客户端工具尝试连接，如果连不上：
查看3306端口是否开启：
netstat -an|grep 3306
由此可见，3306端口只是在IP 127.0.0.1上监听，所以拒绝了其他IP的访问。
sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf
把其中的bind-address = 127.0.0.1直接注释掉。
重启mysql服务
sudo service mysql restart
客户端连接测试成功。
标签：默认 rgba 客户端连接 img vim anon src for 远程访问
原文地址：https://www.cnblogs.com/lipg/p/13864699.html
