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Alek_A
Asked: 2021-09-16 08:05:05 +0800 CST

NFS4 + Kerberos 自 5.10 内核起不起作用

  • 772

自从我更新到 Debian Bullseye，nfs 客户端停止工作：

# mount -vvt nfs4 -o sec=krb5 nfs11:/srv /mnt
mount.nfs4: timeout set for Wed Sep 15 20:25:49 2021
mount.nfs4: trying text-based options 'sec=krb5,vers=4.2,addr=x.y.11.63,clientaddr=x.y.11.42'
mount.nfs4: mount(2): Permission denied
mount.nfs4: access denied by server while mounting nfs11:/srv

当我在同一系统上安装 5.9 内核（linux-image-5.9.0-0.bpo.5-cloud-amd64）时 - 它可以工作。

我也试过：

  • Debian 测试内核（内核 5.14） - 不起作用
  • Ubuntu 21.10 Impish（内核 5.13）- 不工作
  • Ubuntu 20.04 Focal（内核 5.4）- 有效

如果所有系统都具有相同的 NFS/Kerberos 设置，我的结论是：内核中发生了一些变化，不允许挂载 NFS/Kerberos 共享。

  • 我的 KDC - Samba4 AD
  • 我的 Kerberos 和 NFS 设置是非常标准的，就像在任何方法中一样
  • HOSTNAME$@REALM nfs/fqdn@REALM host/... 原则在客户端和服务器键选项卡中有

我放入RPCGSSDOPTS="-vvv"/etc/default/nfs-common 进行调试。在以下日志中：

  • nfs11 - 我的测试 nfs 服务器（Debian 11，内核 5.10）
  • tst2 - 我的测试 nfs 客户端（Debian 11）

这是客户端尝试挂载 nfs 共享时的系统日志：

使用 5.9 内核启动的 nfs 客户端（安装成功）

rpc.gssd[446]: #012handle_gssd_upcall: 'mech=krb5 uid=0 service=* enctypes=18,17,16,23,3,1,2' (nfs/clnt0)
rpc.gssd[446]: krb5_use_machine_creds: uid 0 tgtname (null)
rpc.gssd[446]: Full hostname for 'nfs11.my.domain' is 'nfs11.my.domain'
rpc.gssd[446]: Full hostname for 'tst2.my.domain' is 'tst2.my.domain'
rpc.gssd[446]: Success getting keytab entry for '[email protected]'
rpc.gssd[446]: gssd_get_single_krb5_cred: principal '[email protected]' ccache:'FILE:/tmp/krb5ccmachine_MY.DOMAIN'
rpc.gssd[446]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631755378
rpc.gssd[446]: creating tcp client for server nfs11.my.domain
rpc.gssd[446]: DEBUG: port already set to 2049
rpc.gssd[446]: creating context with server [email protected]
rpc.gssd[446]: doing downcall: lifetime_rec=36000 [email protected]
rpc.gssd[446]: #012handle_gssd_upcall: 'mech=krb5 uid=0 enctypes=18,17,16,23,3,1,2' (nfs/clnt0)
rpc.gssd[446]: krb5_use_machine_creds: uid 0 tgtname (null)
rpc.gssd[446]: Full hostname for 'nfs11.my.domain' is 'nfs11.my.domain'
rpc.gssd[446]: Full hostname for 'tst2.my.domain' is 'tst2.my.domain'
rpc.gssd[446]: Success getting keytab entry for '[email protected]'
rpc.gssd[446]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631755378
rpc.gssd[446]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631755378
rpc.gssd[446]: creating tcp client for server nfs11.my.domain
rpc.gssd[446]: DEBUG: port already set to 2049
rpc.gssd[446]: creating context with server [email protected]
rpc.gssd[446]: doing downcall: lifetime_rec=36000 [email protected]
nfsidmap[524]: key: 0x3b88d120 type: uid value: [email protected] timeout 600
nfsidmap[524]: nfs4_name_to_uid: calling nsswitch->name_to_uid
nfsidmap[524]: nss_getpwnam: name '[email protected]' domain 'my.domain': resulting localname 'root'
nfsidmap[524]: nfs4_name_to_uid: nsswitch->name_to_uid returned 0
nfsidmap[524]: nfs4_name_to_uid: final return value is 0
nfsidmap[525]: key: 0x317cb571 type: gid value: [email protected] timeout 600
nfsidmap[525]: nfs4_name_to_gid: calling nsswitch->name_to_gid
nfsidmap[525]: nfs4_name_to_gid: nsswitch->name_to_gid returned 0
nfsidmap[525]: nfs4_name_to_gid: final return value is 0

使用 5.10 内核启动的 nfs 客户端（不挂载）

rpc.gssd[450]: #012handle_gssd_upcall: 'mech=krb5 uid=0 service=* enctypes=18,17,16,3,1,2' (nfs/clnt3)
rpc.gssd[450]: krb5_use_machine_creds: uid 0 tgtname (null)
rpc.gssd[450]: Full hostname for 'nfs11.my.domain' is 'nfs11.my.domain'
rpc.gssd[450]: Full hostname for 'tst2.my.domain' is 'tst2.my.domain'
rpc.gssd[450]: Success getting keytab entry for '[email protected]'
rpc.gssd[450]: gssd_get_single_krb5_cred: principal '[email protected]' ccache:'FILE:/tmp/krb5ccmachine_MY.DOMAIN'
rpc.gssd[450]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631656676
rpc.gssd[450]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631629984
rpc.gssd[450]: creating tcp client for server nfs11.my.domain
rpc.gssd[450]: DEBUG: port already set to 2049
rpc.gssd[450]: creating context with server [email protected]
rpc.gssd[450]: WARNING: Failed to create krb5 context for user with uid 0 for server [email protected]
rpc.gssd[450]: WARNING: Failed to create machine krb5 context with cred cache FILE:/tmp/krb5ccmachine_MY.DOMAIN for server nfs11.my.domain
rpc.gssd[450]: creating tcp client for server nfs11.my.domain
rpc.gssd[450]: DEBUG: port already set to 2049
rpc.gssd[450]: creating context with server [email protected]
rpc.gssd[450]: WARNING: Failed to create krb5 context for user with uid 0 for server [email protected]
rpc.gssd[450]: WARNING: Failed to create machine krb5 context with cred cache FILE:/tmp/krb5ccmachine_MY.DOMAIN for server nfs11.my.domain
rpc.gssd[450]: WARNING: Machine cache prematurely expired or corrupted trying to recreate cache for server nfs11.my.domain
rpc.gssd[450]: Full hostname for 'nfs11.my.domain' is 'nfs11.my.domain'
rpc.gssd[450]: Full hostname for 'tst2.my.domain' is 'tst2.my.domain'
rpc.gssd[450]: Success getting keytab entry for '[email protected]'
rpc.gssd[450]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631656676
rpc.gssd[450]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631656676
rpc.gssd[450]: INFO: Credentials in CC 'FILE:/tmp/krb5ccmachine_MY.DOMAIN' are good until 1631629984
rpc.gssd[450]: creating tcp client for server nfs11.my.domain
rpc.gssd[450]: DEBUG: port already set to 2049
rpc.gssd[450]: creating context with server [email protected]
rpc.gssd[450]: WARNING: Failed to create krb5 context for user with uid 0 for server [email protected]
rpc.gssd[450]: WARNING: Failed to create machine krb5 context with cred cache FILE:/tmp/krb5ccmachine_MY.DOMAIN for server nfs11.my.domain
rpc.gssd[450]: creating tcp client for server nfs11.my.domain
rpc.gssd[450]: DEBUG: port already set to 2049
rpc.gssd[450]: creating context with server [email protected]
rpc.gssd[450]: WARNING: Failed to create krb5 context for user with uid 0 for server [email protected]
rpc.gssd[450]: WARNING: Failed to create machine krb5 context with cred cache FILE:/tmp/krb5ccmachine_MY.DOMAIN for server nfs11.my.domain
rpc.gssd[450]: ERROR: Failed to create machine krb5 context with any credentials cache for server nfs11.my.domain
rpc.gssd[450]: doing error downcall

我用谷歌搜索了很多，没有找到任何相关的东西......目前作为一种解决方法，我在所有 nfs 客户端系统中运行以前版本的反向移植内核。但我认为它很危险，而且有些东西告诉我它随时可能破裂。

有没有人遇到过这样的问题？也许我应该调整一些东西以匹配内核的变化？也许我应该填补内核错误？

更新。添加了 KDC 日志。

使用 5.9 内核从客户端挂载时 KDC - 成功

[2021/09/21 21:55:12.061264,  3] ../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection - 'dcesrv: NT_STATUS_CONNECTION_DISCONNECTED'
[2021/09/21 21:55:44.743415,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ [email protected] from ipv4:x.y.11.42:38701 for krbtgt/[email protected]
[2021/09/21 21:55:44.747105,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 150, 149
[2021/09/21 21:55:44.747154,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- [email protected]
[2021/09/21 21:55:44.747178,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- [email protected]
[2021/09/21 21:55:44.747209,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- [email protected]
[2021/09/21 21:55:44.751030,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ [email protected] from ipv4:x.y.11.42:50506 for krbtgt/[email protected]
[2021/09/21 21:55:44.753959,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 150, 149
[2021/09/21 21:55:44.754060,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- [email protected]
[2021/09/21 21:55:44.754114,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- [email protected]
[2021/09/21 21:55:44.754187,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- [email protected] using arcfour-hmac-md5
[2021/09/21 21:55:44.754275,  3] ../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user [(null)]\[[email protected]] at [Tue, 21 Sep 2021 21:55:44.754261 +06] with [arcfour-hmac-md5] status [NT_STATUS_OK] workstation [(null)] remote host [ipv4:x.y.11.42:50506] became [MYDOM]\[tst2$] [S-1-5-21-3408476796-3867293677-901807371-6619]. local host [NULL] 
  {"timestamp": "2021-09-21T21:55:44.754359+0600", "type": "Authentication", "Authentication": {"version": {"major": 1, "minor": 2}, "eventId": 4624, "logonId": "dd24014b273cc7a8", "logonType": 3, "status": "NT_STATUS_OK", "localAddress": null, "remoteAddress": "ipv4:x.y.11.42:50506", "serviceDescription": "Kerberos KDC", "authDescription": "ENC-TS Pre-authentication", "clientDomain": null, "clientAccount": "[email protected]", "workstation": null, "becameAccount": "tst2$", "becameDomain": "MYDOM", "becameSid": "S-1-5-21-3408476796-3867293677-901807371-6619", "mappedAccount": "tst2$", "mappedDomain": "MYDOM", "netlogonComputer": null, "netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000", "netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null, "passwordType": "arcfour-hmac-md5", "duration": 3366}}
[2021/09/21 21:55:44.761108,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2021-09-21T21:55:44 starttime: unset endtime: 2021-09-22T07:55:44 renew till: 2021-09-22T21:55:44
[2021/09/21 21:55:44.761282,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: arcfour-hmac-md5, aes128-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96, using arcfour-hmac-md5/arcfour-hmac-md5
[2021/09/21 21:55:44.761368,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, forwardable
[2021/09/21 21:55:44.767382,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: TGS-REQ [email protected] from ipv4:x.y.11.42:39570 for nfs/[email protected] [canonicalize, renewable, forwardable]
[2021/09/21 21:55:44.773999,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: TGS-REQ authtime: 2021-09-21T21:55:44 starttime: 2021-09-21T21:55:44 endtime: 2021-09-22T07:55:44 renew till: 2021-09-22T21:55:44
[2021/09/21 21:55:44.774695,  3] ../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection - 'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() - NT_STATUS_CONNECTION_DISCONNECTED'

使用 5.10 内核从客户端挂载时 KDC - 挂载失败

[2021/09/22 00:31:39.893723,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ [email protected] from ipv4:x.y.11.42:46094 for krbtgt/[email protected]
[2021/09/22 00:31:39.899112,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: 150, 149
[2021/09/22 00:31:39.899162,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- [email protected]
[2021/09/22 00:31:39.899186,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- [email protected]
[2021/09/22 00:31:39.899221,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: No preauth found, returning PREAUTH-REQUIRED -- [email protected]
[2021/09/22 00:31:39.901942,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ [email protected] from ipv4:x.y.11.42:39303 for krbtgt/[email protected]
[2021/09/22 00:31:39.905030,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client sent patypes: encrypted-timestamp, 150, 149
[2021/09/22 00:31:39.905080,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for PKINIT pa-data -- [email protected]
[2021/09/22 00:31:39.905105,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Looking for ENC-TS pa-data -- [email protected]
[2021/09/22 00:31:39.905171,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: ENC-TS Pre-authentication succeeded -- [email protected] using arcfour-hmac-md5
[2021/09/22 00:31:39.905270,  3] ../../auth/auth_log.c:635(log_authentication_event_human_readable)
  Auth: [Kerberos KDC,ENC-TS Pre-authentication] user [(null)]\[[email protected]] at [Wed, 22 Sep 2021 00:31:39.905248 +06] with [arcfour-hmac-md5] status [NT_STATUS_OK] workstation [(null)] remote host [ipv4:x.y.11.42:39303] became [MYDOM]\[tst2$] [S-1-5-21-3408476796-3867293677-901807371-6621]. local host [NULL] 
  {"timestamp": "2021-09-22T00:31:39.905331+0600", "type": "Authentication", "Authentication": {"version": {"major": 1, "minor": 2}, "eventId": 4624, "logonId": "8511280d720bd92c", "logonType": 3, "status": "NT_STATUS_OK", "localAddress": null, "remoteAddress": "ipv4:x.y.11.42:39303", "serviceDescription": "Kerberos KDC", "authDescription": "ENC-TS Pre-authentication", "clientDomain": null, "clientAccount": "[email protected]", "workstation": null, "becameAccount": "tst2$", "becameDomain": "MYDOM", "becameSid": "S-1-5-21-3408476796-3867293677-901807371-6621", "mappedAccount": "tst2$", "mappedDomain": "MYDOM", "netlogonComputer": null, "netlogonTrustAccount": null, "netlogonNegotiateFlags": "0x00000000", "netlogonSecureChannelType": 0, "netlogonTrustAccountSid": null, "passwordType": "arcfour-hmac-md5", "duration": 3429}}
[2021/09/22 00:31:39.912509,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: AS-REQ authtime: 2021-09-22T00:31:39 starttime: unset endtime: 2021-09-22T10:31:39 renew till: 2021-09-23T00:31:39
[2021/09/22 00:31:39.912597,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: arcfour-hmac-md5, aes128-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96, using arcfour-hmac-md5/arcfour-hmac-md5
[2021/09/22 00:31:39.912663,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Requested flags: renewable-ok, forwardable
[2021/09/22 00:31:39.918313,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: TGS-REQ [email protected] from ipv4:x.y.11.42:59850 for nfs/[email protected] [canonicalize, renewable, forwardable]
[2021/09/22 00:31:39.924869,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: TGS-REQ authtime: 2021-09-22T00:31:39 starttime: 2021-09-22T00:31:39 endtime: 2021-09-22T10:31:39 renew till: 2021-09-23T00:31:39
[2021/09/22 00:31:39.925340,  3] ../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection - 'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() - NT_STATUS_CONNECTION_DISCONNECTED'
[2021/09/22 00:31:39.928319,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: TGS-REQ [email protected] from ipv4:x.y.11.42:59852 for nfs/[email protected] [renewable, forwardable]
[2021/09/22 00:31:39.930936,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Server (nfs/[email protected]) has no support for etypes
[2021/09/22 00:31:39.930998,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Failed building TGS-REP to ipv4:x.y.11.42:59852
[2021/09/22 00:31:39.931336,  3] ../../source4/smbd/service_stream.c:67(stream_terminate_connection)
  stream_terminate_connection: Terminating connection - 'kdc_tcp_call_loop: tstream_read_pdu_blob_recv() - NT_STATUS_CONNECTION_DISCONNECTED'

我看到Server (nfs/[email protected]) has no support for etypes错误。谷歌发现一个与旧 enctypes 相关的旧问题，没有任何用处。所有软件包都是最新的。

感谢评论，我取得了一些进展。我安装了新的 Samba DC，将客户端（5.10 内核）和服务器都加入了新的 KDC - 它工作正常！新的 KDC 允许具有任何内核的 NFS 客户端挂载共享。似乎问题出在我的生产 Samba DC 中。我查看了 ldap 数据库，看起来它们很相似，除了在新的 dc 上添加了很少的内容，比如 3 个新对象和一些字段。目前我不知道我应该在生产 DC 中进行哪些调整以使其表现得像新的一样。重新安装将是最后的手段，因为它需要很多时间。

生产 DC 是很久以前创建的，并且使用标准 samba 复制或备份进行了多次迁移。生产和新鲜的 DC 信息：

  • oEInformation：由 SAMBA 4.1.6-Ubuntu 提供
  • oEInformation：由 SAMBA 4.13.5-Debian 提供

目前，DC 在相同的 Debian 操作系统下运行。

更新 2. 解决了！

请参阅下面的解决方案。

nfs kerberos kernel

2 个回答

  1. Linux 在 5.10 中从 Kerberos 中删除了对 RC4-HMAC-MD5 的支持。您的客户端使用该加密类型，可以在服务器的日志输出中看到：

    [2021/09/21 21:55:44.761282,  3] ../../source4/auth/kerberos/krb5_init_context.c:80(smb_krb5_debug_wrapper)
  Kerberos: Client supported enctypes: arcfour-hmac-md5, aes128-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96, using arcfour-hmac-md5/arcfour-hmac-md5

    如果 AES 类型可用，Samba 应该选择 aes256-cts-hmac-sha1-96。

    它不在您的任何日志中，但我猜失败的 TGS-REQ 要求提供 des3-cbc-sha1、aes128-cts-hmac-sha1-96、aes256-cts-hmac-sha1-96。这可以通过使用参数启动 rpc.gssd 来验证-vvvrr。在这种情况下，客户的 AD 帐户没有启用所需的加密类型。如果客户端在 Samba 不支持 AES 时加入域，则会发生这种情况。您可以通过重置客户端的 AD 帐户密码或重新加入域来启用加密类型。您还需要确保将加密类型添加到客户端的密钥表中。这可以验证klist -ke在客户端上运行。

    如果您使用特定的服务主体，请确保将加密类型显式添加到客户端的帐户（在 ADC 运行上net ads enctypes set <ACCOUNTNAME> 24）。否则只会导出 ARCFOUR 类型。

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  2. Best Answer

    在我的情况下，解决方案如下：我尝试使生产 DC 上的 LDAP DB 看起来像新 DC（正在工作）上的 LDAP DB。所以我改变了一些领域。重新启动一切。它奏效了！

    我到底改变了什么。

    dn: DC=my,DC=domain我使用添加/更改了对象中的以下字段ldbedit -H /var/lib/samba/private/sam.ldb：

    msDS-Behavior-Version: 4
msDS-NcType: 0
serverState: 1

    生产 DC 过去已重命名，但我在以下对象中发现了剩菜（旧名称）：

    dn: CN=<old-name>,CN=*,CN=ypServ30,CN=RpcServices,CN=System,DC=my,DC=domain

    我通过用 重命名它们来解决这个问题ldbrename，例如：

    ldbrename -H /var/lib/samba/private/sam.ldb 'CN=<old-name>,CN=bootparams,CN=ypServ30,CN=RpcServices,CN=System,DC=my,DC=domain' 'CN=<actual-name>,CN=bootparams,CN=ypServ30,CN=RpcServices,CN=System,DC=my,DC=domain'

    也许并非所有这些更改都是必要的，但它现在有效。谢谢您的意见！

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