Or on RHEL: sudo yum install openssl10

It can often be installed alongside newer versions (like 13, 17, or 18) if different applications require specific driver versions. Microsoft Learn Key Features Download ODBC Driver for SQL Server - Microsoft Learn

You can locate the official RPMs at: https://packages.microsoft.com/rhel/6/prod/

Read the Microsoft Software License Terms (spoiler: you cannot distribute the driver with your own application without a separate license).