CONTAP-79128：默认站点始终用于在CIFS发现模式"site"下发现受信任域控制器

问题描述

• 在受信任域配置中、如果配置了CIFS默认站点、则受信任域的DNS查询将包括主域中的站点名称
  示例：
  cluster::> cifs domain trusts show -node node-01 -vserver SVM01
Node: node-01
Vserver: SVM01
Home Domain Name: DEMO.DOMAINA.LOCAL
Trusted Domain Name: NAS.LOCAL, DEMO.DOMAINA.LOCAL
cluster::> cifs show -vserver SVM01
Vserver: SVM01
CIFS Server NetBIOS Name: SVM01
NetBIOS Domain/Workgroup Name: DEMO
Fully Qualified Domain Name: DEMO.DOMAINA.LOCAL
Organizational Unit: CN=Computers
Default Site Used by LIFs Without Site Membership: test <<< !
[...]
cluster::> event log show -event dns
Time Node Severity Event
------------------- ---------------- ------------- ---------------------------
10/24/2022 13:41:22 node-01 ERROR secd.dns.srv.lookup.failed: DNS server failed to look up service
(_kerberos._tcp.test._sites.NAS.LOCAL) for vserver (SVM01) with error (No server(s) found).
  

           注意：上述EMS消息不正确地包含默认站点"test"。

• ONTAP位于修复版本的CONVA-67647上：受信任域会定期出现DNS服务查找失败