bugrdiff-backup - Bugs: bug #29702, feature request:...


bug #29702: feature request: "--unprivileged-user": flag when backing up

Submitted by:  Kurt <greenmoss>
Submitted on:  Wed 28 Apr 2010 03:12:04 PM UTC  
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open

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Wed 28 Apr 2010 03:12:04 PM UTC, original submission:  

Certain avoidable problems arise when one attempts to use a non-root user to do backups.

For instance, see this earlier bug report I submitted:


This arises because non-root users can not read root-read-only symlink targets on the local filesystem. If rdiff-backup is running as non-root, it should not attempt to read local filesystem symlink targets.

Another case is when I back up files that are mode 000 (non-read/write by anyone). Root would be able to read and remove these files, but since I am running as non-root, rdiff-backup is unable to alter these files once they have been created. When running as non-root, such files should instead be at least readable by the non-root user.

There may be other applicable cases as well. Thus I propose a new flag when invoking rdiff-backup to do a backup: --unprivileged-user. This signals to rdiff-backup that special handling will be required, since it will not be able to run with complete read-write privileges on the local filesystem.

Kurt <greenmoss>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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