This is not good at all... Firstly old sssd, now crypto issues...
Can you also say, will HBAC and SUDO in IPA work for trusted AD users on RHEL 5 
servers if we will enable vulnerable tls?

Alexander Frolushkin
Cell +79232508764
Work +79232507764

-----Original Message-----
From: Alexander Bokovoy []
Sent: Wednesday, June 10, 2015 4:30 PM
To: Alexander Frolushkin (SIB)
Subject: Re: [Freeipa-users] RHEL 5.11 as IPA client

On Wed, 10 Jun 2015, Alexander Frolushkin wrote:
>We cannot login to our IPA enrolled RHEL 5.11 host using any IPA (4.1) native 
>or AD trusted users.
>Seems like it fails on connection to server. SSSD logs attached.
>Additionally, is it ever possible now to use AD trusted users to ssh RHEL 5 
>Logs and sssd config attached.
RHEL5 uses OpenSSL crypto library which doesn't support TLS 1.1+ which is 
required by default by IPA 4.1. Your potential fix would be to allow
tls1.0 use at the server side but you need to know what this leads to:

You seem to have issues on RHEL5 with TLS1.0+ configuration which is in use by 
the LDAP server:
(Wed Jun 10 17:05:16 2015) [sssd[be[default]]] [sdap_process_result]
(8): Trace: sh[0x15b01590], connected[1], ops[0x15b01e40], ldap[0x15b019d0] 
(Wed Jun 10 17:05:16 2015) [sssd[be[default]]] [sdap_connect_done] (3):
START TLS result: Success(0), Start TLS request accepted.Server willing to 
negotiate SSL.
(Wed Jun 10 17:05:16 2015) [sssd[be[default]]] [sdap_connect_done] (3):
ldap_install_tls failed: [Connect error] [Start TLS request accepted.Server 
willing to negotiate SSL.] (Wed Jun 10 17:05:16 2015) [sssd[be[default]]] 
(8): Trace: sh[0x15b01590], connected[1], ops[(nil)], ldap[0x15b019d0], 
destructor_lock[0], release_memory[0] (Wed Jun 10 17:05:16 2015) 
[sssd[be[default]]] [remove_connection_callback] (9): Successfully removed 
connection callback.
(Wed Jun 10 17:05:16 2015) [sssd[be[default]]] [fo_set_port_status] (4):
Marking port 389 of server '' as 'not working'
(Wed Jun 10 17:05:16 2015) [sssd[be[default]]] [be_pam_handler_callback]
(4): Backend returned: (3, 4, <NULL>) [Internal Error (System error)] (Wed Jun 
10 17:05:16 2015) [sssd[be[default]]] [be_pam_handler_callback]
(4): Sending result [4][default]
(Wed Jun 10 17:05:16 2015) [sssd[be[default]]] [be_pam_handler_callback]
(4): Sent result [4][default]
(Wed Jun 10 17:05:22 2015) [sssd[be[default]]] [sbus_dispatch] (9): dbus
conn: 15AF0830
(Wed Jun 10 17:05:22 2015) [sssd[be[default]]] [sbus_dispatch] (9):

/ Alexander Bokovoy


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