Consider that Internet Protocol Version 6 (IPv6) is disabled on startup for SQL Server 2017 on Linux. Therefore, any outbound connections that are initiated by SQL Server to connect to linked server or to secondaries of an availability group by hostname will fail with an error because of name resolution problems.


Use Internet Protocol (IP) address instead of hostname to connect to SQL Server or remove the parameter ipv6.disable=1 in boot cmdline file to enable IPv6.


This issue is fixed in the following cumulative update for SQL Server:

       Cumulative Update 2 for SQL Server 2017

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:

Latest cumulative update for SQL Server 2017


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the terminologythat Microsoft uses to describe software updates.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!