The system is running for a long time there have been no problems, suddenly broke out today, given below:
Original upload function properly why suddenly can not use it?
See server file attribute data, as shown below:
Recently added files are created by the root user, and had previously been luhua created by users.
When the service starts and stops time once again to find the usual luhua group of users can not execute the kill command, it is very strange.
Then check the root user with the history and found that the service execution start over.
This truth! ! !
When the root user to start the service, create a file upload folder owned by root, back then, it would be prompted to start eas not have permission to operate. From the figure we can see that the file belongs to the root user created for the group and others are not read and write permissions.