Solve the problem that PHP cannot access remote mysql_PHP tutorial

Explain that the remote server can be accessed remotely.

The problem I encountered is this: There are three servers A, B, and C. C is the server. B can successfully connect to the mysql of C machine using PHP, but machine A cannot connect!

It can be said that there is definitely no problem with the code, and there is no problem with the mysql settings on the server, because machine B is fine.

There must be something wrong with the settings of machine A!

After a search on the Internet, there are various reports about mysql authorization issues, modifications to php.ini, and modifications to the firewall. In fact, these problems are not caused.

Finally, I thought about the problem of SELINUX. I compared the two machines AB and found that the settings are indeed different! It is probably its problem, there is something wrong!

The following settings have been made:

Under root, use vim to open the file /etc/selinux/config

Modify the value of SELINUX:

　#SELINUX=enforcing

SELINUX=disabled

Save and exit.

Restart will take effect. If you don’t want to restart, enter

on the command line.

setenforce 0

Enter, OK

http://www.bkjia.com/PHPjc/371973.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/371973.htmlTechArticle explains that the remote server can be accessed remotely. The problem I encountered is this: there are three servers A, B, and C. C is the server. B can successfully connect to the mysql of C machine using PHP, but A machine...