DAC is trying to be launched, how to prevent?

[FWPHVRS]

I have a POD (podman on Redhat) with 2 SQL express instances.
One runs on port 1434 and the other 1435.

Although DAC is disabled (see messages) it still tries to start it. The second instance will file because instance 1 has 1431 already in use.

Can I somehow prevent this?

• Hard disable DAC in mssql.conf?
• Steer the DAC port, so it doesn't try to listen on the same port on the second instance?

2024-12-09 19:49:17.32 spid40s     Server is listening on [ 0.0.0.0 <ipv4> 1435] accept sockets 1.

2024-12-09 19:49:17.32 spid40s     Dedicated administrator connection support was not started because it is disabled on this edition of SQL Server. If you want to use a dedicated administrator connection, restart SQL Server using the trace flag 7806. This is an informational message only. No user action is required.

2024-12-09 19:49:20.92 spid55s     Attribute synchronization initialized

2024-12-09 19:49:20.92 spid55s     Attribute synchronization manager initialized

2024-12-09 19:52:17.35 spid40s     Error: 26024, Severity: 16, State: 1.

2024-12-09 19:52:17.35 spid40s     Server failed to listen on ::1 <ipv6> 1431. Error: 0x2742. To proceed, notify your system administrator.

2024-12-09 19:52:17.35 spid40s     Failed to create the named pipe server at \\.\pipe\XdbPkgLauncherPipe. ErrorCode: 0x00002742.

2024-12-09 19:52:17.36 spid40s     InitializeXdbPkgLauncher failed. ErrorCode: 0x80072742.