Joining Your SQL Server On Linux VM To A Domain

Dylan Gray and Tejas Shah provides some tips on joining a SQL Server on Linux instance to an existing Active Directory domain:

AD authentication is a popular mechanism for login and user authentication. It works very well in many scenarios, especially for enterprise applications. AD authentication is a supported scenario on SQL Server on Linux. Configuring the Linux VM to join with Active Directory (AD) can be a little tricky at sometimes though, especially in a complex enterprise environment.

  • One error message you may see from “realm join” is “realm: Couldn’t join realm: This computer’s host name is not set correctly.” This is due to a generic hostname (e.g. “localhost”), an incorrect domain in your hostname (e.g. “host1.abcd.com” instead of “host1.contoso.com”), or a duplicate hostname on the domain. To fix this, edit /etc/hostname to have a unique hostname and reboot the machine. On Ubuntu, it can also be helpful to put the fully qualified domain name in /etc/hostname (e.g. “host1.contoso.com” instead of “host1”).

 

They provide in this post some of the low-hanging fruit answers, where the problem is in basic server configuration.

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