[TriLUG] private key permission/ownership on removable USB device

[Ken Mink]

You need fat to use the uid/gid options. However, I just did some
testing and it seems that ssh simply requires that it can read your
ssh key file. So you can not worry about using fat and use ext2/3.


On Mon, 28 Feb 2005 12:48:01 -0500, Mack.Joseph at epamail.epa.gov
<Mack.Joseph at epamail.epa.gov> wrote:
> Joseph Mack PhD, High Performance Computing & Scientific Visualisation
> LMIT, Supporting the EPA Research Triangle Park, NC 919-541-0007
> Federal Contact - John B. Smith 919-541-1087 - smith.john at epa.gov
> 
> trilug-bounces at trilug.org wrote on 02/28/2005 12:06:07 PM:
> 
> > Here's the way I did that for my machines:
> >
> > 1) Leave the key drive a fat file system.
> 
> I hoped not to have to do this :-( Why can't you use ext3?
> 
> Do you need fat so you can use the uid/gid below (your "2")
> 
> > 2) Use autofs to mount the drive when needed with the following fat
> > mount options;
> >    uid=<your uid>,gid=<your gid>,umask=0177
> >      you set the uid and gid to your ids on each machine. The mask
> > makes the file perms 600, which ssh wants.
> >
> > 3) create a sym link in you .ssh directoy to the appropiate file in
> > the automounted filesystem.
> >
> > I used mine this way for quite a while. I was eventually able to make
> > all my uids the same. Then I switched to ext2 filesystem on the key
> > drive.
> 
> how do you do it with ext2?
> 
> Thanks Joe
> 
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