[Freeipa-users] Admin cannot retrieve keytab -- is that expected?

[Alexander Bokovoy]

On Mon, 17 Apr 2017, Jan Pazdziora wrote:
>
>Hello,
>
>on freeipa-server-4.4.4-1.fc25.x86_64, admin can generate and retrieve
>new keytab for a service but they cannot retrieve the existing keys
>with the -r option. Is that expected?
Yes. Access to existing keys is intentionally restricted. There are
additional commands that allow to set up how to grant such access based
on the management of a service. There is no way to set up a blank
permission for that, though, as permission is based on the specific
attributes in the service entry.

# ipa service-add foobar/$(hostname)
--------------------------------------------------
Added service "foobar/nyx.xs.ipa.cool at XS.IPA.COOL"
--------------------------------------------------
  Principal name: foobar/nyx.xs.ipa.cool at XS.IPA.COOL
  Principal alias: foobar/nyx.xs.ipa.cool at XS.IPA.COOL
  Managed by: nyx.xs.ipa.cool

# ipa service-allow-retrieve-keytab foobar/$(hostname) --groups=admins
  Principal name: foobar/nyx.xs.ipa.cool at XS.IPA.COOL
  Principal alias: foobar/nyx.xs.ipa.cool at XS.IPA.COOL
  Managed by: nyx.xs.ipa.cool
  Groups allowed to retrieve keytab: admins
-------------------------
Number of members added 1
-------------------------

# ipa service-show foobar/$(hostname) --all --raw|grep ipaAllowedToPerform
  ipaAllowedToPerform;read_keys: cn=admins,cn=groups,cn=accounts,dc=xs,dc=ipa,dc=cool


This is all documented very well: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Linux_Domain_Identity_Authentication_and_Policy_Guide/retrieve-existing-keytabs.html

-- 
/ Alexander Bokovoy