[Freeipa-users] cannot ssh in (sss_ssh_authorizedkeys returned status 1) ??

[lejeczek]

hi all

I cannot ssh from a boxA 
(ipa-server-4.2.0-15.sl7_2.19.x86_64) to a boxB 
(ipa-server-4.2.0-15.0.1.el7.centos.19.x86_64)
I realize that to assume versions differences cause it is 
bit silly but nothing changed except update of boxB's IPA a 
day before the problem occur.
Also, there is a boxC 
(ipa-server-4.2.0-15.0.1.el7.centos.19.x86_64) (so boxB == 
boxC IPA-wise) which does ssh in fine.
Other way around, boxB to boxA ssh works.
Logs are pretty quiet, I merely see:

error: AuthorizedKeysCommand /usr/bin/sss_ssh_authorizedkeys 
returned status 1

and that I'm not sure appears at the time of login attempt.
I do:
boxA$ ssh boxB
Connection closed by UNKNOWN

ps. boxA is not banned nor block by any tcp/ip means.

many! thanks for any help
L.