Passwordless SSH

[Predrag Punosevac]

Ankit Laddha <aladdha at andrew.cmu.edu> wrote:

> Hi
> 
> I can log into lov3 and lov4 using SSH without password but not
> ari/foxconn.
> 

This is second or third report that passwordless login is not working on
RHEL 7.1 (ari/foxconn) even though it works as expected on RHEL 6.7 and
earlier. 

I looked more carefully into this in the past hour and it seems to me
that RHEL is shipped with a buggy sshd_config file. I did little diff
of the sshd_config file from ARI and my home desktop machine which runs
the latest and greatest version of OpenSSH/OpenBSD. I also did diff of 
sshd_config files from RHEL 6.7 and RHEL 7.1 and those two differ
significantly as RHEL 6.7 is shipped with the 7 year old version of
OpenSSH while RHEL is shipped with a year old version of OpenSSH. 

I could not find any obvious reasons. The culprit could be PAM module
which is mandatory on RHEL but doesn't even exist on OpenBSD. 

I am sorry for this. The problem on the surface looks similar to this
report

http://www.linuxquestions.org/questions/linux-software-2/passwordless-ssh-setup-not-working-any-ideas-559628/

However RHEL 7.1 is more or less Fedora 19 so that fix didn't work for
me. If somebody stumbles upon a solution please e-mail me.

Predrag

> Thank You
> 
> -- 
> Regards,
> Ankit Laddha
> MS in Robotics Student
> Carnegie Mellon University