1 ERROR 2002(HY000): Can't connect to local MySQL server through socket' /var/lib/mysql/mysql.sock'(2)
未启动MySQL MySQL的问题
2 ERROR 1045(28000): Access denied for user 'root'@'localhost' (using password: NO)
密码错了，修改root用户的密码：
2.1 方法一
mysqladmin -uroot -ppassword 'newpassword'
2.2 方法二
# /etc/init.d/mysql stop
# mysqld_safe--user=mysql --skip-grant-tables --skip-networking &
# mysql -u root mysql
mysql> UPDATE userSET Password=PASSWORD('newpassword') where USER='root';
mysql> FLUSHPRIVILEGES;
mysql> quit
# /etc/init.d/mysqlrestart
# mysql -uroot -p
Enter password: <输入新设的密码newpassword>
3 Can'tconnect to MySQL server on '192.168.10.31' (10060)
IP写错了, 或者端口没有开放.
4 ERROR 1130:Host '192.168.1.3' is not allowed to connect to this MySQL server
4.1 改表法
在localhost的那台电脑，登入mysql后，更改"mysql"数据库里的"user"表里的"host"项，从"localhost"改成"%"
mysql -u root -p
mysql> use mysql;
mysql> update userset host = '%' where user = 'root';
mysql> select host,user from user;
4.2 授权法
mysql> grant all privilegeson *.* to 'yourname'@'%' identified by 'youpasswd';
Query OK, 0 rowsaffected (0.05 sec)
mysql> flushprivileges;
Query OK, 0 rowsaffected (0.06 sec)
mysql> exit