While we’re on this subject, it would be useful for IPA to support netgroup.byhost. That
would give signifiant advantages with Netapp. If that is supported, Netapp will look up
the netgroups for a host every time a mount is done. Without it, they consider that
reloading the whole net group file is too inefficient, so they depend upon a cache whose
normal TTL is a day.
On Nov 13, 2017, at 4:25 AM, Pavel Březina
<pbrezina(a)redhat.com> wrote:
On 11/08/2017 11:47 PM, Charles Hedrick wrote:
> In my opinion the whole rfc3704bis implementation of net groups is wonky.
>
> This isn’t the only problem. Why is there a distinction between internal and external
hosts? Suppose I add an external host to a net group, and later do ipa host-add for it. If
the distinction actually matters I’d expect the system to turn the external host entry
into an internal host entry. But it doesn’t.
>
> In principle there’s a difference between blank and -, but the ipa implementation
always produces - for missing user and host and blank for missing domain name.
>
> I’d really rather see the system just store the triples rather than doing a complex
mapping going in and out.
>
>
>> On Nov 8, 2017, at 5:08 PM, Jakub Hrozek <jhrozek(a)redhat.com> wrote:
>>
>> Pavel, does this sound like the bug you were looking at wrt sudo lately?
>>
>> On Wed, Nov 08, 2017 at 09:46:25PM +0000, Charles Hedrick wrote:
>>> Netapp wants the domain field to be blank. That leaves us a problem that’s
hard to solve.
>>>
>>> On Nov 8, 2017, at 4:41 PM, Charles Hedrick
<hedrick@rutgers.edu<mailto:hedrick@rutgers.edu>> wrote:
>>>
>>> OK, I see what’s going on, but it looks like a bug.
>>>
>>> We mostly use net groups for hosts. In NIS our entries like like (hostname,,)
You can put that into IPA by specifying NISdomain=, i.e. blank domain name. However if
you do that, getent shows no entries. That is, entries with blank hostname are ignored. I
claim this is a bug, since for a host entry there’s no reason to specify a domain.
>>>
>>> I also found that specifying
>>>
>>>
ipa_netgroup_domain=cs.rutgers.edu<https://na01.safelinks.protection.o...
>>>
>>> causes no net groups to display, even ones whose domain is
cs.rutgers.edu<https://na01.safelinks.protection.outlook.com/?url=http...;.
This also looks like a bug.
>>>
>>> On Nov 8, 2017, at 3:53 PM, Charles Hedrick
<hedrick@rutgers.edu<mailto:hedrick@rutgers.edu>> wrote:
>>>
>>> We want to move our net groups from NIS to IPA. I’ve loaded the groups.
They’re visible on a system that uses nslcd pointed at the IPA server. But the systems
that use SSSD for authentication don’t show anything. The net groups all show as
undefined.
>>>
>>> I’ve turned on debugging and looked at the LDAP logs. It does the right
quotes and the log says it extracts the members. But they don’t show up.
>>>
>>> Any idea where to look?
Can you send us some example of what you are trying to achieve and what does not work?
I'm also ccing Alexander Bokovoy to see why IPA adds somewhere dash and somewhere
blanks.