Can't ssh to machine after re0installing as F12

Ed Greshko Ed.Greshko at greshko.com
Wed Jan 20 08:54:34 UTC 2010


François Patte wrote:
> Le 20/01/2010 09:19, Ed Greshko a écrit :
> > François Patte wrote:
> >> Le 19/01/2010 13:13, Colin Paul Adams a écrit :
> >>> Hello,
> >>> today I upgraded (actually a fresh install, but I kept my old /home
> >>> partition) to Fedora 12.
> >>> Now I can't ssh to the machine (I use DSA public key authentication
> >>> only). I can't figure out why.
> >> Disable Selinux
> >>
> > Don't you think it would be a good idea to first check the logs to
> > actually see if there is any selinux messages that could relate to the
> > problem?
>
> In this case, I think that Selinux is the culprit: I had this problem
> too: You can ssh "classically" (ssh john.Doe at machine.net, then give
> password), but not using DSA public key authentication.
>
> I don't understand the Selinux policy in this case because DSA public
> key authentication seems to be more secure than the other way.
>
>
> The OP remains free to re-enable Selinux after finding the good Selinux
> rules to solve the problem.
>
I feel jumping to a conclusion without any evidence is poor
troubleshooting. 

FWIW, I have a RHELv4 and once I transfered my pub key to my F12 system
and included it in my authorized_keys files I can ssh to my F12 system
without a need for a password.  selinux is enabled and enforcing on my
F12 system.



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