[Freeipa-users] openldap certs?

Dmitri Pal dpal at redhat.com
Thu May 22 15:07:11 UTC 2014


On 05/22/2014 10:36 AM, Bret Wortman wrote:
> I found that our slower system was using FQDNs for the list of IPA 
> servers; our faster system was using IPs. I'm switching now, letting 
> Puppet distribute the update and will see if it helps.
>

That means you have problems with DNS that are worth looking into.

> By enumeration, do you mean are we spelling out our IPA servers? Yes. 
> We only have 3 and they look something like this:

No. I mean the ability of sssd to download everything when enumerate = true
This causes a lot of traffic and overhead and a usual reason for low 
performance.
We were unfortunate to include this setting into one of the early 
sssd.conf examples and people have been copying it around ever since 
though we strongly recommend against enabling it.

>
> [domain/foo.net]
>
> cache_credentials = True
> krb5_store_password_if_offline = True
> ipa_domain = foo.net
> id_provider = ipa
> auth_provider = ipa
> access_provider = ipa
> ipa_hostname = rm266ws-a.foo.net
> chpass_provider = ipa
> ipa_dyndns_update = True
> ipa_server = _srv_, 192.168.2.61, 192.168.2.62, 192.168.2.63
> ldap_netgroup_search_base = cn=ng,cn=compat,dc=foo,dc=net
> ldap_tls_cacert = /etc/ipa/ca.crt
> [sssd]
> services = nss, pam, ssh
> config_file_version = 2
>
> domains = foo.net
> [nss]
>
> [pam]
>
> [sudo]
>
> [autofs]
>
> [ssh]
>
> [pac]
>
> On the other hand, if you meant something else, then I hope the 
> answer's in the file. ;-)
>
>
> On 05/22/2014 10:15 AM, Dmitri Pal wrote:
>> On 05/22/2014 09:43 AM, Bret Wortman wrote:
>>> What we're seeing is slow GDM logins, ssh authentications, and "sudo 
>>> -i" responses on this network. On our other, these things are all 
>>> blazing fast. Here, they're on the order of 5-10 seconds. And it 
>>> doesn't seem to improve (much) with age or time, except perhaps 
>>> anecdotally. At best, a second connection might be a second faster, 
>>> but will revert within an hour or so.
>>>
>>
>> Have you compared sssd.conf from clients in these two networks?
>> Do you use enumeration?
>>
>> Increasing debug level and looking at the logs will help you to 
>> understand what part takes most time. These logs will be helpful for 
>> you/us to see if/what the problem is/are.
>>
>>>
>>> On 05/22/2014 09:36 AM, Rob Crittenden wrote:
>>>> Bret Wortman wrote:
>>>>> Where should my clients be getting the contents of 
>>>>> /etc/openldap/certs from?
>>>>>
>>>>> I've got one network where my IPA authentications are blazing fast 
>>>>> and
>>>>> one where they're ... not. On the slower one, clients'
>>>>> /etc/openldap/certs directories are either missing or empty; on the
>>>>> faster network, clients have certs in these directories.
>>>>>
>>>>> Is this important, and if so what could be going wrong on my slower
>>>>> network that might cause the certs to not get distributed or created
>>>>> properly?
>>>> These are not the droids you are looking for...
>>>>
>>>> Can you clarify what you mean by IPA authentications? sssd should be
>>>> handling that, and while a first auth over a slow link might be slow
>>>> subsequent usage should be quite fast.
>>>>
>>>> rob
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Freeipa-users mailing list
>>> Freeipa-users at redhat.com
>>> https://www.redhat.com/mailman/listinfo/freeipa-users
>>
>>
>> -- 
>> Thank you,
>> Dmitri Pal
>>
>> Sr. Engineering Manager IdM portfolio
>> Red Hat, Inc.
>>
>>
>> _______________________________________________
>> Freeipa-users mailing list
>> Freeipa-users at redhat.com
>> https://www.redhat.com/mailman/listinfo/freeipa-users
>
>
>
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-- 
Thank you,
Dmitri Pal

Sr. Engineering Manager IdM portfolio
Red Hat, Inc.

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