无法通过Red Hat Linux连接MS SQL及RDS实例技术求助

Environment Details #

• Operating System: Red Hat Enterprise Linux Server release 7.4 (Maipo)
• MS SQL Server Version: Microsoft SQL Server 2017 (RTM-CU3-GDR) (KB4052987) - 14.0.3015.40 (X64)

  Released: Dec 22, 2017 16:13:22
  Copyright (C) 2017 Microsoft Corporation
  64-bit Express Edition running on Windows Server 2012 R2 Standard 6.3 (Build 9600: ) (Hypervisor)

Problem I'm Facing #

I've spent hours searching Google for troubleshooting steps but haven't found any feasible solutions. Right now, I'm unable to establish connections to two separate MS SQL Server instances from my RHEL 7.4 system:

1. An MS SQL Server instance hosted on RDS
2. Our internal on-premises MS SQL Server instance

I'm stuck and hoping someone can help diagnose and resolve this connection issue.

内容的提问来源于stack exchange，提问作者batmanforever