[root@localhost ~]# yum -y install community-mysql-server #安装数据库 已加载插件：langpacks, refresh-packagekit google-chrome 3/3 正在解决依赖关系 There are unfinished transactions remaining. You might consider running yum-complete-transaction, or "yum-complete-transaction --cleanup-only" and "yum history redo last", first to finish them. If those don't work you'll have to try removing/installing packages by hand (maybe package-cleanup can help). --> 正在检查事务 ---> 软件包 community-mysql-server.x86_64.0.5.5.35-1.fc20 将被 安装 --> 正在处理依赖关系 community-mysql-common(x86-64) = 5.5.35-1.fc20，它被软件包 community-mysql-server-5.5.35-1.fc20.x86_64 需要 --> 正在处理依赖关系 mysql(x86-64)，它被软件包 community-mysql-server-5.5.35-1.fc20.x86_64 需要 --> 正在检查事务 ---> 软件包 community-mysql.x86_64.0.5.5.35-1.fc20 将被 安装 ---> 软件包 community-mysql-common.x86_64.0.5.5.35-1.fc20 将被 安装 --> 解决依赖关系完成 依赖关系解决 ================================================================================ Package 架构 版本 源 大小 ================================================================================ 正在安装: community-mysql-server x86_64 5.5.35-1.fc20 updates 8.8 M 为依赖而安装: community-mysql x86_64 5.5.35-1.fc20 updates 4.9 M community-mysql-common x86_64 5.5.35-1.fc20 updates 208 k 事务概要 ================================================================================ 安装 1 软件包 (+2 依赖软件包) 总下载量：14 M 安装大小：78 M Downloading packages: (1/3): community-mysql-5.5.35-1.fc20.x86_64.rpm | 4.9 MB 00:04 (2/3): community-mysql-common-5.5.35-1.fc20.x86_64.rpm | 208 kB 00:00 (3/3): community-mysql-server-5.5.35-1.fc20.x86_64.rpm | 8.8 MB 00:03 -------------------------------------------------------------------------------- 总计 1.4 MB/s | 14 MB 00:09 Running transaction check Running transaction test Transaction test succeeded Running transaction 正在安装 : community-mysql-common-5.5.35-1.fc20.x86_64 1/3 正在安装 : community-mysql-5.5.35-1.fc20.x86_64 2/3 正在安装 : community-mysql-server-5.5.35-1.fc20.x86_64 3/3 验证中 : community-mysql-5.5.35-1.fc20.x86_64 1/3 验证中 : community-mysql-server-5.5.35-1.fc20.x86_64 2/3 验证中 : community-mysql-common-5.5.35-1.fc20.x86_64 3/3 已安装: community-mysql-server.x86_64 0:5.5.35-1.fc20 作为依赖被安装: community-mysql.x86_64 0:5.5.35-1.fc20 community-mysql-common.x86_64 0:5.5.35-1.fc20 完毕！ [root@localhost ~]# systemctl start mysqld.service [root@localhost ~]# systemctl enable mysqld.service ln -s '/usr/lib/systemd/system/mysqld.service' '/etc/systemd/system/multi-user.target.wants/mysqld.service' [root@localhost ~]# mysql -u root #以root登陆数据库 Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 2 Server version: 5.5.35 MySQL Community Server (GPL) Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> select user, host, password from mysql.user; #user列表 +------+-----------+----------+ | user | host | password | +------+-----------+----------+ | root | localhost | | | root | rachel | | | root | 127.0.0.1 | | | root | ::1 | | | | localhost | | | | rachel | | +------+-----------+----------+ rows in set (0.00 sec) mysql> delete from mysql.user where user=''; #删除空user Query OK, 2 rows affected (0.00 sec) mysql> delete from mysql.user where user='root' and host='::1'; #删除IPv6用户(如果不用的话) Query OK, 1 row affected (0.00 sec) mysql> select user, host, password from mysql.user; +------+-----------+----------+ | user | host | password | +------+-----------+----------+ | root | localhost | | | root | rachel | | | root | 127.0.0.1 | | +------+-----------+----------+ rows in set (0.00 sec) # 设定密码 mysql> set password for root@localhost=password('XXXXXX'); Query OK, 0 rows affected (0.00 sec) mysql> set password for root@rachel=password('XXXXXX'); Query OK, 0 rows affected (0.00 sec) mysql> set password for root@'127.0.0.1'=password('XXXXXXX'); Query OK, 0 rows affected (0.00 sec) #再次列密码 mysql> select user, host, password from mysql.user; +------+-----------+-------------------------------------------+ | user | host | password | +------+-----------+-------------------------------------------+ | root | localhost | *C7E2F6338326EDC0AXXXXXXXXXXXXXXXXXXXXXXX | | root | rachel | *C7E2F6338326EDC0AXXXXXXXXXXXXXXXXXXXXXXX | | root | 127.0.0.1 | *C7E2F6338326EDC0AXXXXXXXXXXXXXXXXXXXXXXX | +------+-----------+-------------------------------------------+ rows in set (0.00 sec) mysql> exit Bye [root@localhost ~]# mysql -u root -p #再次登录 Enter password: #输入刚才的密码 Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 3 Server version: 5.5.35 MySQL Community Server (GPL) Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> exit Bye [root@localhost ~]#