ubuntu上mysql服務器安裝后只能本地連接不能遠程連接的問題

安裝好mysql后，想使用另一個電腦進行遠程登錄，在登錄時 提示拒絕連接

百度后，發現需要兩個步驟解決該問題

• /etc/mysql/my.cnf 里修改bind_address = 0.0.0.0 

•  進行授權

　（1）直接授權

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
mysql>FLUSH RIVILEGES;

　 (2)改表法 可能是你的帳號不允許從遠程登陸，只能在localhost。這個時候只要在localhost的那台電腦，登入mysql后，更改 “mysql” 數據庫里的 “user” 表里的 “host” 項，從”localhost”改成”%”

mysql -u root -p passwd 
mysql>use mysql;
mysql>update user set host = '%' where user = 'root';
mysql>select host, user from user;

但是在進行第一步的時候，my.cnf里的內容卻是如下這樣的：

#

# The MySQL database server configuration file.

#

# You can copy this to one of:

# - "/etc/mysql/my.cnf" to set global options,

# - "~/.my.cnf" to set user-specific options.

# 

# One can use all long options that the program supports.

# Run program with --help to get a list of available options and with

# --print-defaults to see which it would actually understand and use.

#

# For explanations see

# http://dev.mysql.com/doc/mysql/en/server-system-variables.html

 

#

# * IMPORTANT: Additional settings that can override those from this file!

#   The files must end with '.cnf', otherwise they'll be ignored.

#


!includedir /etc/mysql/conf.d/

!includedir /etc/mysql/mysql.conf.d/

　最后發現，需要修改 的是  /etc/mysql/mysql.conf.d/mysqld.cnf

   使用sudovim /etc/mysql/mysql.conf.d/mysqld.cnf

   修改bind_address = 0.0.0.0 

   然后重啟mysql服務即可: sudo /etc/init.d/mysql restart