Ubuntu上mysql服务远程登录问题

远程连接ubuntu系统的mysql服务时发生错误 Error No. 2003 Can't connect to mysql server on '10.15.92.131' (10065)

进入终端命令，输入

nmap localhost -p3306

 结果为

Starting Nmap 5.21 ( http://nmap.org ) at 2013-01-09 18:04 CST
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000037s latency).
PORT STATE SERVICE
3306/tcp open mysql

 以访问的ip的替代localhost

nmap 10.15.92.131 -p3306

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  结果为

Starting Nmap 5.21 ( http://nmap.org ) at 2013-01-09 18:04 CST
Nmap scan report for 10.15.92.131
Host is up (0.000045s latency).
PORT STATE SERVICE
3306/tcp closed mysql

 

 两相对比可以看出直接用ip连接的3306/tcp is closed

之后进入mysql命令行后，查看登录用户有无远程连接的权限

use mysql
select host,user from user

如果host为％，则此处正确

+------------------------+------------------+
| host | user |
+------------------------+------------------+
| % | lace |
| % | root |
| 10.15.92.131 | root |
| baowp-work-Lenovo-B460 | |
| localhost | debian-sys-maint |
+------------------------+------------------+

 

退出mysql命令行，再编辑mysql的配置文件my.cnf

sudo vi /etc/mysql/my.cnf

 

修改 bind-address   = 127.0.0.1 为 bind-address   = 0.0.0.0

最后重启mysql

sudo /etc/init.d/mysql restart

 

 再查看 nmap 10.15.92.131 -p3306时看到3306/tcp open mysql，此时可以远程登录

Starting Nmap 5.21 ( http://nmap.org ) at 2013-01-09 18:04 CST
Nmap scan report for 10.15.92.131
Host is up (0.000045s latency).
PORT STATE SERVICE
3306/tcp closed mysql