I wish I had some idea of what I might have changed. Intentionally I
haven't changed anything.
There are no new messages in the /var/log/messages file after a failed
logon.

Comparing /etc/parm.d/sshd to another system that allows SSH logons ...
they are identical.
cat
/etc/pam.d/sshd

#%PAM-1.0

auth       required
pam_sepermit.so
auth       substack
password-auth
auth       include
postlogin
# Used with polkit to reauthorize users in remote
sessions
-auth      optional     pam_reauthorize.so
prepare
account    required
pam_nologin.so
account    include
password-auth
password   include
password-auth
# pam_selinux.so close should be the first session
rule
session    required     pam_selinux.so
close
session    required
pam_loginuid.so
# pam_selinux.so open should only be followed by sessions to be executed in
the user context
session    required     pam_selinux.so open
env_params
session    optional     pam_keyinit.so force
revoke
session    include
password-auth
session    include
postlogin
# Used with polkit to reauthorize users in remote
sessions
-session   optional     pam_reauthorize.so
prepare






On Thu, Mar 3, 2016 at 7:11 AM, van Sleeuwen, Berry <
berry.vansleeu...@atos.net> wrote:

> Hi Tom,
>
> Could it be the pam configuration for ssh is changed? Perhaps the password
> checking in pam?
>
> I once had such an issue when I made a typo in /etc/pam.d/sshd. After this
> I couldn't login anymore. It showed up in the console log as "Error: PAM:
> Module is unknown for <userid> from <ip-address>.". (This might be in
> /var/log/messages as well.)
>
> I had to correct the typo using "sed" in the Linux console.
>
> Met vriendelijke groet/With kind regards/Mit freundlichen Grüßen,
> Berry van Sleeuwen
>
> -----Original Message-----
> From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Tom
> Huegel
> Sent: Thursday, March 03, 2016 3:23 PM
> To: LINUX-390@VM.MARIST.EDU
> Subject: LINUX SSH problem.
>
> This seems strange to me (a LINUX novice) but I have FEDORA f21 system
> that has been working fine until recently.
> It seems strange LINUX starts up just fine but when I try to SSH
> (Putty) into it I get the initial logon screen but the password is always
> rejected.
> From the z/VM console I can logon using the same password.
>
> I must have touched something *&&*&%.
> Any idea how to fix it?
> Thanks
> Tom
>
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