[Freeipa-users] Reinstall ipa client, problem with old CA

[Martin Kosek]

On 05/19/2015 03:21 PM, Dewangga Bachrul Alam wrote:
> Thank you Martin,
> 
> Yes, the IPA Server was built on CentOS 7.1. But, some client still
> using CentOS 6.x, but I have plan upgrade them to 7.x.
> 
> Is it gave a problem if some client still on CentOS 6.x and the IPA
> Server built on CentOS 7.x ?

No, I do not see a problem with this setup. Clients will just simply use the
capabilities they can do. We still tend to backport client features to
RHEL-6.x, so it keeps getting the selected functionality (server does not).

> 
> On 05/19/2015 08:14 PM, Martin Kosek wrote:
>> On 05/19/2015 10:53 AM, Dewangga Bachrul Alam wrote:
>>> Hello!
>>>
>>> On 05/19/2015 12:53 PM, Martin Kosek wrote:
>>>> On 05/19/2015 04:04 AM, Dewangga Bachrul Alam wrote:
>>>>> Hello!
>>>>>
>>>>> I'm trying to reinstall ipa client, but have a problem with old/existing
>>>>> ca.crt in `/etc/ipa/ca.crt`. Should I remove it manually? Since the IPA
>>>>> server still on development and always reinstalled, I need to reproduce
>>>>> any possible problem/error on FreeIPA 4.x on CentOS 7.
>>>>>
>>>>> The error was :
>>>>> LDAP Error: Connect error: TLS error -8054:You are attempting to import
>>>>> a cert with the same issuer/serial as an existing cert, but that is not
>>>>> the same cert.
>>>>>
>>>>> Currently, I was renamed ca.crt to ca.crt.old and the ipa client
>>>>> successfully reconnected to new FreeIPA Server using dns discovery.
>>>>>
>>>>> Is it normal? And why the ipa-client-install --uninstall didn't
>>>>> completely remove the old ca.crt?
>>>>
>>>> Hello,
>>>>
>>>> ipa-client-install uninstall the CA certificate properly since FreeIPA
>>>> 3.2. This is the upstream ticket:
>>>> https://fedorahosted.org/freeipa/ticket/3537
>>>>
>>>> CentOS/RHEL speaking, this should be thus fixed in 7.0+. In 6.x
>>>> versions, you need to delete the certificate manually if you reinstalled
>>>> the IPA server.
>>>>
>>>> HTH,
>>>> Martin
>>>
>>> Could you gimme advice, which version is suitable on production? 3.x or
>>> 4.x ?.Or is there any release timeline for FreeIPA version (like EOL, etc).
>>
>> All versions in RHEL should be suitable for production - RHEL is an OS
>> targeting production/stable environment.
>>
>> For FreeIPA, I would recommend using environment built on top of RHEL-7.1
>> version (FreeIPA 4.1) as it contains the most fixes and most functionality to
>> be offered.
>>
>> I would not recommend having mixed RHEL-6.x and RHEL-7.x as you you will have
>> limited capabilities of your infrastructure as most of the new server features
>> are not backported to RHEL-6.x and clients connected to these servers could not
>> use them.
>>
>> Martin
>>