下載
wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm
安轉軟件源
這步是幹毛用的,我不太清楚
sudo rpm -Uvh platform-and-version-specific-package-name.rpm
安裝mysql服務端
yum install -y mysql-community-server
原作者說: 如果網絡環境不是很好,執行完命令就可以去泡杯茶🍵或者榮耀殺一局(或者打個飛機)
啓動mysql
service mysqld start(重啓是restart,完全弄好MySQL後最好添加lower_case_table_names=1到[mysqld]下面一行然後重啓MySQL,這是爲了和windows兼容,還有就是在[mysql]下面一行加入default-character-set=utf8)
systemctl start mysqld.service(這個是上面步驟執行後自動輸出的,我這邊的全稱是:Redirecting to /bin/systemctl start mysqld.service)
然後回到[.....]#
檢查mysql 的運行狀態
service mysqld status
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: active (running) since Sat 2018-12-08 18:25:24 CST; 1min 25s ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: 11245 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS)
Process: 11168 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Main PID: 11247 (mysqld)
CGroup: /system.slice/mysqld.service
└─11247 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid
Dec 08 18:25:08 localhost.localdomain systemd[1]: Starting MySQL Server...
Dec 08 18:25:24 localhost.localdomain systemd[1]: Started MySQL Server.
修改臨時密碼
Mysql5.7默認安裝之後root是有密碼的。
爲了加強安全性,MySQL5.7爲root用戶隨機生成了一個密碼,在error log中,關於error log的位置,如果安裝的是RPM包,則默認是/var/log/mysqld.log。
只有啓動過一次mysql纔可以查看臨時密碼
[root@localhost data]# grep 'temporary password' /var/log/mysqld.log
2018-12-08T10:25:10.470912Z 1 [Note] A temporary password is generated for root@localhost: y3!)ij/p:tvH
#如果之前安裝過MySQL則這裏可能會有多個密碼,用最後一個,注意這個密碼輸入時是可以粘貼的
登陸並修改密碼
使用默認的密碼登陸 mysql -uroot -p(這是一個MySQL的以密碼登錄root用戶的命令)
用該密碼登錄到服務端後,必須馬上修改密碼再執行一些數據庫操作,不然會報如下錯誤:
mysql> select @@log_error; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
ALTER USER 'root'@'localhost' IDENTIFIED BY '你的密碼';
授權其他機器登陸
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;
FLUSH PRIVILEGES;