FreeIPA ActiveDirectoryとの信頼を確立できません
FreeIPAとActiveDirectoryの間の信頼を確立しようとしています。
インフラストラクチャの詳細：
- 3台のIPAサーバーすべてが相互にレプリケーションを行う（CentOS 7）
- AD用の3xドメインコントローラー（Windows Server 2016）
次のコマンドを実行しようとした場合：
ipa trust-add --type=ad ad.example.net --admin admin --password --server=DC1.ad.example.net
ログに次のエラーが発生しています。
[Thu May 09 14:32:36.771267 2019] [:error] [pid 26493] ipa: ERROR: When setting forest trust information, got collision info back:
[Thu May 09 14:32:36.771308 2019] [:error] [pid 26493] lsa_ForestTrustCollisionInfo: struct lsa_ForestTrustCollisionInfo
[Thu May 09 14:32:36.771315 2019] [:error] [pid 26493] count : 0x00000001 (1)
[Thu May 09 14:32:36.771321 2019] [:error] [pid 26493] entries : *
[Thu May 09 14:32:36.771326 2019] [:error] [pid 26493] entries: ARRAY(1)
[Thu May 09 14:32:36.771332 2019] [:error] [pid 26493] entries : *
[Thu May 09 14:32:36.771337 2019] [:error] [pid 26493] entries: struct lsa_ForestTrustCollisionRecord
[Thu May 09 14:32:36.771343 2019] [:error] [pid 26493] index : 0x00000000 (0)
[Thu May 09 14:32:36.771349 2019] [:error] [pid 26493] type : LSA_FOREST_TRUST_COLLISION_TDO (0)
[Thu May 09 14:32:36.771354 2019] [:error] [pid 26493] flags : 0x00000004 (4)
[Thu May 09 14:32:36.771360 2019] [:error] [pid 26493] 0: LSA_TLN_DISABLED_NEW
[Thu May 09 14:32:36.771366 2019] [:error] [pid 26493] 0: LSA_TLN_DISABLED_ADMIN
[Thu May 09 14:32:36.771382 2019] [:error] [pid 26493] 1: LSA_TLN_DISABLED_CONFLICT
[Thu May 09 14:32:36.771388 2019] [:error] [pid 26493] 0: LSA_SID_DISABLED_ADMIN
[Thu May 09 14:32:36.771394 2019] [:error] [pid 26493] 0: LSA_SID_DISABLED_CONFLICT
[Thu May 09 14:32:36.771399 2019] [:error] [pid 26493] 1: LSA_NB_DISABLED_ADMIN
[Thu May 09 14:32:36.771405 2019] [:error] [pid 26493] 0: LSA_NB_DISABLED_CONFLICT
[Thu May 09 14:32:36.771410 2019] [:error] [pid 26493] name: struct lsa_String
[Thu May 09 14:32:36.771416 2019] [:error] [pid 26493] length : 0x0018 (24)
[Thu May 09 14:32:36.771422 2019] [:error] [pid 26493] size : 0x001a (26)
[Thu May 09 14:32:36.771427 2019] [:error] [pid 26493] string : *
[Thu May 09 14:32:36.771433 2019] [:error] [pid 26493] string : 'ad.example.net'
[Thu May 09 14:32:36.771439 2019] [:error] [pid 26493]
[Thu May 09 14:32:36.771535 2019] [:error] [pid 26493] ipa: ERROR: Attempt to solve forest trust topology conflicts
[Thu May 09 14:32:36.778084 2019] [:error] [pid 26493] ipa: ERROR: non-public: NTSTATUSError: (3221225695, 'The specified domain did not exist.')
[Thu May 09 14:32:36.778103 2019] [:error] [pid 26493] Traceback (most recent call last):
[Thu May 09 14:32:36.778109 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/rpcserver.py", line 369, in wsgi_execute
[Thu May 09 14:32:36.778115 2019] [:error] [pid 26493] result = command(*args, **options)
[Thu May 09 14:32:36.778121 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 450, in __call__
[Thu May 09 14:32:36.778126 2019] [:error] [pid 26493] return self.__do_call(*args, **options)
[Thu May 09 14:32:36.778132 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 478, in __do_call
[Thu May 09 14:32:36.778138 2019] [:error] [pid 26493] ret = self.run(*args, **options)
[Thu May 09 14:32:36.778143 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipalib/frontend.py", line 800, in run
[Thu May 09 14:32:36.778164 2019] [:error] [pid 26493] return self.execute(*args, **options)
[Thu May 09 14:32:36.778175 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/plugins/trust.py", line 737, in execute
[Thu May 09 14:32:36.778181 2019] [:error] [pid 26493] result = self.execute_ad(full_join, *keys, **options)
[Thu May 09 14:32:36.778187 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/plugins/trust.py", line 992, in execute_ad
[Thu May 09 14:32:36.778193 2019] [:error] [pid 26493] trust_type
[Thu May 09 14:32:36.778198 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/dcerpc.py", line 1670, in join_ad_full_credentials
[Thu May 09 14:32:36.778204 2019] [:error] [pid 26493] trust_type, trust_external)
[Thu May 09 14:32:36.778210 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/dcerpc.py", line 1353, in establish_trust
[Thu May 09 14:32:36.778216 2019] [:error] [pid 26493] self.update_ftinfo(another_domain)
[Thu May 09 14:32:36.778221 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/dcerpc.py", line 1229, in update_ftinfo
[Thu May 09 14:32:36.778227 2019] [:error] [pid 26493] self.clear_ftinfo_conflict(another_domain, cinfo)
[Thu May 09 14:32:36.778232 2019] [:error] [pid 26493] File "/usr/lib/python2.7/site-packages/ipaserver/dcerpc.py", line 1125, in clear_ftinfo_conflict
[Thu May 09 14:32:36.778238 2019] [:error] [pid 26493] lsa.LSA_FOREST_TRUST_DOMAIN_INFO)
[Thu May 09 14:32:36.778244 2019] [:error] [pid 26493] NTSTATUSError: (3221225695, 'The specified domain did not exist.')
[Thu May 09 14:32:36.778604 2019] [:error] [pid 26493] ipa: INFO: [jsonserver_session] [email protected]: trust_add/1(u'ad.example.net', trust_type=u'ad', realm_admin=u'admin', realm_passwd=u'********', realm_server=u'DC1.ad.example.net', version=u'2.230'): InternalError
今私が言うことができることから、私はそれに無効なドメイン名を与えたと言っています...しかし私が実行した場合：
systeminfo | findstr /B /C:"Domain"
ドメインに登録されたマシンの1つで、次を返します。
Domain: ad.example.net
だから私は正しいドメイン名を使用していることを知っています。
なぜこれが失敗しているのか説明できる人はいますか？
基本的に、IPAドメインの名前はADフォレストトポロジのどこかですでに使用されており、ActiveDirectoryドメインコントローラーはその名前をIPAにルーティングすることを拒否していると言っています。 IPAの自動トポロジ競合ソルバーのコードは、ADでIPA名がUPNとして使用されているためにこのような競合が発生する状況を考慮していません。
ADのUPNとしてexample.comはありますか？もしそうなら、この信頼を機能させる方法はありません。 AD DCが受け入れる前に、IPAドメイン（=レルム）を変更する必要があります。または、AD側から同名のUPNを削除します。