mysql can not access port 3306

mysql standby copy, show slave status display has been connecting IO

First, view the firewall has been turned off

Second, copy user permissions to view used, has also been open

Three, telnet port access to another machine, to be rejected

 

View mysql configuration file, add the following colleagues have found a configuration

bind_address=127.0.0.1

Do not allow external access, remove the restart mysql, tel normal, primary and returned to normal