在CentOS中安裝MySQL

其實挺簡單的之前走了很多彎路，寫下來做個日記吧

之前一直報錯兩種，

第一種就是

error 2002 (hy000): can't connect to local mysql server through socket '/var/lib/mysql/mysql.sock' (2)

安裝的也特別快，應該是沒有安裝主體部分吧

後來採用的rpm安裝，但是也一直報錯

error 1045 (28000): access denied for user 'root'@'localhost' (using password: yes)

我也是後來才知道的。我換了又一種方法

# wget 

# rpm -ivh mysql80-community-release-el7-1.noarch.rpm
# yum repolist all | grep mysql
# yum-config-manager --enable mysql80-community
# yum install mysql-community-server

安裝好之後

# mysql

error 2002 (hy000): can't connect to local mysql server through socket '/var/lib/mysql/mysql.sock' (2)

# systemctl start mysqld.service

# service mysqld status

# mysql -uroot -p

enter password：

error 1045 (28000): access denied for user 'root'@'localhost' (using password: no)

# vi /var/log/mysqld.log

2018-11-18t10:47:38.093190z 5 [note] [my-010454] [server] a temporary password is generated for root@localhost: wfldyddzf5_g

然後登陸

# mysql -uroot -p

enter password：

修改密碼

mysql> alter user 'root'@'localhost' identified by 'yourpasswd';

mysql> create user 'root'@'%' identified by 'yourpasswd';

query ok, 0 rows affected (0.08 sec)
mysql> grant all privileges on *.* to 'root'@'%' ;
query ok, 0 rows affected (0.05 sec)
mysql> flush privileges;
query ok, 0 rows affected (0.01 sec)

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