Alexander,

Thank you for your feedback!

In my environment I noticed that client machines that are on Red Hat 6 have 
version 3.0.0 of IPA client installed.

[root@ptr-test-6 ~]# yum list installed | grep ipa
ipa-client.x86_64                  3.0.0-47.el6
ipa-python.x86_64                  3.0.0-47.el6


[root@ptr-test-6 ~]# yum list installed | grep sssd
python-sssdconfig.noarch           1.12.4-47.el6
sssd.x86_64                        1.12.4-47.el6
sssd-ad.x86_64                     1.12.4-47.el6
sssd-client.x86_64                 1.12.4-47.el6
sssd-common.x86_64                 1.12.4-47.el6
sssd-common-pac.x86_64             1.12.4-47.el6
sssd-ipa.x86_64                    1.12.4-47.el6
sssd-krb5.x86_64                   1.12.4-47.el6
sssd-krb5-common.x86_64            1.12.4-47.el6
sssd-ldap.x86_64                   1.12.4-47.el6
sssd-proxy.x86_64                  1.12.4-47.el6
[root@ptr-test-6 ~]# 


And I noticed particular behavior with IPA client 3.0.0 and IPA server 4.1 - 
when I add machines to the domain using command below:

# ipa-client-install --enable-dns-updates --ssh-trust-dns —mkhomedir

DNS record populate in Forward lookup zone, but no PTR records appear in 
Reverse lookup zones. That behavior is not the same with IPA client 4.1 and IPA 
server 4.1 version combination.

Also during IPA client v. 3.0.0 configuration on version 6 of Red Hat I see 
output below:

Synchronizing time with KDC...
Enrolled in IPA realm XXXXXXXXX.COM
Attempting to get host TGT...
Created /etc/ipa/default.conf
New SSSD config will be created
Configured sudoers in /etc/nsswitch.conf
Configured /etc/sssd/sssd.conf
Configured /etc/krb5.conf for IPA realm XXXXXXXXX.COM
trying https://ipa-idm.XXXXXXXXX.COM/ipa/xml
Forwarding 'env' to server u'https://ipa-idm.XXXXXXXXX.COM/ipa/xml'
Failed to update DNS records.
Adding SSH public key from /etc/ssh/ssh_host_rsa_key.pub
Adding SSH public key from /etc/ssh/ssh_host_dsa_key.pub
Forwarding 'host_mod' to server u'https://ipa-idm.XXXXXXXXX.COM/ipa/xml'
SSSD enabled
Configuring XXXXXXXXX.COM as NIS domain
Configured /etc/openldap/ldap.conf
NTP enabled
Configured /etc/ssh/ssh_config
Configured /etc/ssh/sshd_config
Client configuration complete.


Regards,

Andrey Ptashnik






On 9/16/15, 8:43 AM, "Alexander Bokovoy" <aboko...@redhat.com> wrote:

>On Wed, 16 Sep 2015, Andrey Ptashnik wrote:
>>Dear IPA Team,
>>
>>We have a situation in our datacenter where we deployed Red Hat 7.1
>>with IPA server 4.1 and on the other hand we still have older machines
>>with Red Hat 5 and 6. I noticed that repositories associated with
>>version 6 have older version of the client software – v.3.0. Therefore
>>some functionality is missing from client package 3 vs 4, like
>>automatic update of both forward and reverse DNS records.
>>
>>Is it possible to install IPA client v. 4 on Red Hat 5 and 6 without
>>much breaking dependencies in OS?
>You don't need to install IPA python packages on older machines. These
>packages are mostly for administration purposes.
>
>Automatic update of forward/reverse DNS zones is done by SSSD. RHEL 6
>version of SSSD is on par with RHEL 7 version in the recent updates.
>Additionally, MIT Kerberos backports were done in the recent updates to
>allow OTP functionality in RHEL6 as well. So most of features are there
>already, client-wise.
>
>RHEL5 version does not have such updates and you can implement most of
>the support with existing SSSD and output of 'ipa-advise' tool on IPA
>masters. nsupdate integration would probably need to be done
>differently.
>
>Backporting IPA v4.x client code to RHEL 5 or 6 in general makes not
>much sense.
>
>-- 
>/ Alexander Bokovoy

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