Re: [BackupPC-users] rsync+sudo for rootless remote access (was: Problems to backup linux network computer)

[Adam G. <mai...@we...>]

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Jeffrey J. Kosowsky wrote:
> Very helpful. A few small nits...
> Carl Wilhelm Soderstrom wrote at about 16:58:08 -0600 on Thursday, December 3, 2009:
>  > chown -R rsyncbackup:users ~rsyncbackup/.ssh
>  > chmod 700 ~rsyncbackup/.ssh
> 
> I would do '600'. No need to make it executable.

A directory needs to be executable or you can't cd into it.... readable
to get a directory listing, and writeable to create new files/directories.

Note: permissions of 100 will allow you to cd into the directory, and
modify files in the directory (if you know the filename, and have write
permission on the file).

> For a slight bit of incremental security, I do:
> 	ALL=NOPASSWD: /usr/bin/rsync --server --sender *
> 
> which I believe restricts to read only (but it's not well
> documented). Assuming that's true, then a hacker could not get write
> access to your system (and of course write access is equivalent to
> full ownership).

Which also restricts you from doing a restore...

Hope that helps.

Regards,
Adam
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