shell_exec 已启用。<pre>total 12
-rwxrwxrwx 1 root root  446 Oct 17  2024 clearpostfix.php
-rw-r--r-- 1 root root  194 Oct 17  2024 index.php
-rw-r--r-- 1 root root 1534 Oct 21  2024 sendmail.php
drwxr-xr-x 2 root root  154 Oct 16  2024 src
</pre>