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How to disable deleting file after uploading in sftp

Posted on 2014-07-18
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Last Modified: 2014-08-01
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
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Question by:apunkabollywood
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Mazdajai earned 500 total points
ID: 40204610
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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Expert Comment

by:gheist
ID: 40205527
What is being deleted?
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Author Comment

by:apunkabollywood
ID: 40208645
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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Expert Comment

by:Mazdajai
ID: 40208945
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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Author Comment

by:apunkabollywood
ID: 40211639
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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Expert Comment

by:gheist
ID: 40219014
Sftp is something else. Is ftps working?
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Author Closing Comment

by:apunkabollywood
ID: 40234811
Thanks all for ur help its working with ftps configured
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