How to disable deleting file after uploading in sftp

I have configured sftp on my system but want to disable users to not to delete it after uploading.

here is the configuration.

sshd_config

Match Group abcd
 X11Forwarding no
 AllowTcpForwarding no
 ChrootDirectory /data/inftp/abcd
 ForceCommand internal-sftp
apunkabollywoodAsked:
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MazdajaiCommented:
One way is to put sticky bit on the target directory. It would be difficult for home directory because user should have full access.

chown -Rv root:user /path
chmod 1775 /path

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gheistCommented:
What is being deleted?
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apunkabollywoodAuthor Commented:
Hi All,

I am sorry , I agree applying sticky bit , But still after applying that user can delete the newly uploaded file.

Is there something we can restrict commands in sftp?
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MazdajaiCommented:
If you can post the permission of the directories (ls -lah) perhaps we can determine what is wrong.

You can disable commands in ftp but I cannot think of a way to prevent users running commands via sftp session since it is a extension of the ssh protocol.
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apunkabollywoodAuthor Commented:
Thanks Mazdajai !

Now I configured FTPS :) , so that can apply command restrictions.

All working fine , But now I am facing upload error.

Response:      553 Could not create file.
Error:      Critical file transfer error

SElinux disabled, Please let me know if you need more details.
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gheistCommented:
Sftp is something else. Is ftps working?
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apunkabollywoodAuthor Commented:
Thanks all for ur help its working with ftps configured
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