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CONTAP-79128: The default site is always used for trusted domain controller discovery in the CIFS discovery mode "site"

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ontap-9
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nas
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Issue

  • In a trusted domain configuration, with the CIFS default site configured, DNS queries for trusted domains includes the site name from the home domain
    Examples:


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).
 

           Note: The above EMS message contains default site "test" incorrectly.

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