WinSCP complains at me when it tries to change the file modification time of a file it doesn't own. It says, "set times: Operation not permitted". I can remove this error message by unchecking "Preserve timestamp" in WinSCP settings (as described here https://stackoverflow.com/a/32482812/650004 ). But I want to keep this setting on. I want to configure SSHD (I think) on my server to allow setting the file modification time to anyone with write access to the file.
I looked in /etc/ssh/sshd_config and I can't see anything that might do it.
How can I do this?