PHP interacts with Linux and obtains the root permission

We all know that the default user of Apache is nobody.

Some External commands, nobody, can hardly do anything.

If you want to get the permission

1: Modify httpd. conf and set

User nobody

Group nobody

Change

User xxx

Group xxx

The xxx here cannot be root. Once it is root, congratulations, your Apache will no longer start! Only other users

Permission is a common user level

2: Use the su command to interact with Linux

The statement is as follows:

$ Su = 'Su-c "init 0 "';
$ Password = "root"; // Root Password
$ Fp = @ popen ($ Su, "W ");
@ Fputs ($ FP, $ password );
Pclose ($ FP );

After the execution, if your computer is shut down, it will succeed.

I tried it on my computer. It was successful.

Fedora 15 indicates no pressure