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one of our operational systems (linux) pushes files to our server (HPUX) using SFTP.

Sometimes (..) they need to resend an updated version using the same file_name, but the sftp server doesn't allow them to overwrite.

the unix login used for copying has read/write/execute permissions on the target directory, so I assume I need to modify the SFTPD config?

can you point me towards documentation or howto's

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What are the permission of the uploaded files?

Having write rights for a directory does not allow you to modify existing files (unless you have right to those files as well). It only enables you to delete them.

SSH daemon on HP-UX supports option SftpUmask which specified the rights newly uploaded files get.

  • We've since (more than a year ago) replaced the HPUX servers with newer hardware running linux. .. and the problems have disappeared. My guess "someone" tweaked the sftp daemon settings.. thanks for the tip, I hope others will profit! – lexu May 27 '15 at 6:07

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