[Freeipa-users] sudo and NIS domain name

[Lukas Slebodnik]

On (03/05/14 10:39), Dean Hunter wrote:
>On Sat, 2014-05-03 at 12:36 +0200, Lukas Slebodnik wrote:
>
>> On (01/05/14 15:53), Dean Hunter wrote:
>> >On Thu, 2014-05-01 at 16:32 -0400, Dmitri Pal wrote:
>> >> On 05/01/2014 04:07 PM, Dean Hunter wrote:
>> >> 
>> >> > 
>> >> > I just noticed that I had been incorrectly setting the NIS domain
>> >> > name since upgrading to Fedora 20 and FreeIPA 3.3.4, yet I appear to
>> >> > be successfully retrieving and using sudo rules from FreeIPA.  Is
>> >> > sudo still using NIS-style netgroups?  Is there still a requirement
>> >> > to set the NIS domain name? 
>> >> 
>> >> 
>> >> I think NIS domain is needed for netgroups. If you are not using
>> >> netgroups in the sudo rules but just user groups you should be fine.
>> >> Is this the case with you?
>> >> If not please provide the logs and config.
>> >> 
>> >
>> >I am not aware of using netgroups, either the IPA object or any other
>> >kind.  I just remember that when I was first configuring sudo to
>> >retrieve rules from IPA it would not work until I set nisdomainname
>> >in /etc/rc.d/rc.local.  Here is the quote from section 14.4 of the
>> >manual:
>> >
>> >
>> >        Even though sudo uses NIS-style netgroups, it is not necessary
>> >        to have a NIS server installed. Netgroups require that a NIS
>> >        domain be named in their configuration, so sudo requires that a
>> >        NIS domain be named for netgroups. However, that NIS domain does
>> >        not actually need to exist.
>> >        
>> >
>> >With Fedora 20 I can no longer find the emulation of rc.local that
>> >existed in Fedora 19.  I did find fedora-domainname.service and started
>> >and enabled it but neglected to configure /etc/sysconfig/network.  Yet
>> >IPA sudo rules appear to work.
>> >
>> Hope It helps you
>> http://www.redhat.com/archives/freeipa-users/2014-April/msg00248.html
>> 
>> LS
>
>
>Thank you.  Now that you point it out, I remember that this thread is
>where I first learned about fedora-domainname.service.  I see:
>
>        You would also need to set NIS domain name, otherwise SUDO will
>        not correctly recognize SUDO rules targeted on host groups,
                                                     ^^^^^^^^^^^^^^
                                                 This is important part
>        instead of hosts:
>
>which explains when sudo would need the NIS domain name.  Since my sudo
>rules address user groups I guess there is no requirement for NIS domain
>name since they are working just fine:
Your sudo rules use host groups.

>
>        ipa sudorule-add            desktop-admins --desc "Desktop
>        Administrators"
>        ipa sudorule-mod            desktop-admins --cmdcat all
>        ipa sudorule-add-host       desktop-admins --hostgroups desktops
>        ipa sudorule-add-option     desktop-admins --sudooption "!
>        authenticate"
>        ipa sudorule-add-runasuser  desktop-admins --users root
>        ipa sudorule-add-runasgroup desktop-admins --groups root
>        ipa sudorule-add-user       desktop-admins --groups
>        desktop-admins
>
>        ipa sudorule-add            server-admins  --desc "Server
>        Administrators"
>        ipa sudorule-mod            server-admins  --cmdcat all
>        ipa sudorule-add-host       server-admins  --hostgroups servers
hostgroups are reason why you need to configure NIS domain name.
hostgroups are also available as netgroups in compat tree and sudo reads
information from netgroups.

>        ipa sudorule-add-option     server-admins  --sudooption "!
>        authenticate"
>        ipa sudorule-add-runasuser  server-admins  --users root
>        ipa sudorule-add-runasgroup server-admins  --groups root
>        ipa sudorule-add-user       server-admins  --groups
>        server-admins
>
>However, I was really asking whether there had been a change in
>sssd/sudo behavior as it was my recollection that my sudo rules did not
>work at all in early IPA 3.n releases unless the NIS domain name was
>configured.
>

LS