環境信息:
OS:Ubuntu18.04
MySQL: 5.7.22
Ubuntu19.04 安裝MySQL 8.0.16 見 --> 鏈接
在Ubuntu中,默認情況下,只有最新版本的MySQL包含在APT軟件包存儲庫中,要安裝它,只需更新服務器上的包索引并安裝默認包apt-get。
#命令1sudo apt-get update#命令2sudo apt-get install mysql-server 
sudo mysql_secure_installation 配置項較多,如下所示:
#1VALIDATE PASSWORD PLUGIN can be used to test passwords...Press y|Y for Yes, any other key for No: N (我的選項)#2Please set the password for root here...New password: (輸入密碼)Re-enter new password: (重復輸入)#3By default, a MySQL installation has an anonymous user,allowing anyone to log into MySQL without having to havea user account created for them...Remove anonymous users? (Press y|Y for Yes, any other key for No) : N (我的選項)#4Normally, root should only be allowed to connect from'localhost'. This ensures that someone cannot guess atthe root password from the network...Disallow root login remotely? (Press y|Y for Yes, any other key for No) : Y (我的選項)#5By default, MySQL comes with a database named 'test' thatanyone can access...Remove test database and access to it? (Press y|Y for Yes, any other key for No) : N (我的選項)#6Reloading the privilege tables will ensure that all changesmade so far will take effect immediately.Reload privilege tables now? (Press y|Y for Yes, any other key for No) : Y (我的選項) systemctl status mysql.service 顯示如下結果說明mysql服務是正常的:

在Ubuntu下MySQL缺省是只允許本地訪問的,使用workbench連接工具是連不上的;
如果你要其他機器也能夠訪問的話,需要進行配置;
sudo mysql -uroot -p 登入root進行其他設置:

GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY "123456"; 
其中root@localhos,localhost就是本地訪問,配置成%就是所有主機都可連接;
第二個'123456'為你給新增權限用戶設置的密碼,%代表所有主機,也可以是具體的ip;
不過這隨設置了%但我root通過工具還是登陸不進去,可能是為了安全性,所以新建數據庫和用戶;
用root用戶新建數據和用作遠程訪問的用戶
##1 創建數據庫weixxCREATE DATABASE weixx;##2 創建用戶wxx(密碼654321) 并允許wxx用戶可以從任意機器上登入mysql的weixx數據庫GRANT ALL PRIVILEGES ON weixx.* TO wxx@"%" IDENTIFIED BY "654321"; 打開workbench進行連接配置:

配置完成后,在主界面選擇weixx數據庫進行連接:

新聞熱點
疑難解答