Using fallocate my file permission are rw-r-r, after uploading it becomes rw----- is that normal? What is a wrong file permission?
The RIGHT file permission is that of the file you uploaded using vsftpd_v1. Take note of this in the QBox_Benchmark file and match to this the permission of files uploaded by the other versions.
ie, any uploaded file permission not same as that of the vsftpd_v1 uploaded file permission is WRONG
so im getting rw------ permission on the uploaded file. but the original file has rw-rw-rw. Is that correct then?
Yes. you are in right direction. If that is what you see when you upload it using vsftpd_v1, definitely it is correct. Now go ahead and check which vsftpd version shows different behavior