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avoid vsftpd changing modification time in uploads

I'm running a vsftpd on ubuntu server. All users can upload files fine using their username.
But, every time a new upload comes, (even without change any files), the mtime of all files on the vsftpd side is updated to the actual time. How can I avoid vsftpd to change the time? Or set the same time that remotefiles?
Is it possible?
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1 Solution
Michael WorshamInfrastructure / Solutions ArchitectCommented:
No, this is not possible. The time is obtained from the server-side the client is connecting into and written to the file. VSFTPD and other FTP daemons were coded this way to prevent a client from uploading older data to the server to overwrite newer data files for possible rootkits and other types of server-side abuse.

Example of abuse: If the VSFTPD did allow for keeping the older 'date' of the uploaded file, server-side applications could be at risk (i.e. allowing a modified (rootkit-based) version of '/usr/bin/passwd' to be uploaded while still showing the older date release of what was originally on the server).

sminfoAuthor Commented:
well... after some google's search.. I found that if you use ncftpput (ncftpd) as client with -y option it preserve the timestamp, so when you upload files the files are copied with the same time as in the source server.

and that's due to the setting "mdtm_write  YES" in vsftpd.conf, which is the default.

sminfoAuthor Commented:
Issue solved!
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