Thanks for checking my issue, Recently I developed a simple application with c#, .Net 5 that connects to the SQL server database which is deployed on Windows Server, I tried to run the application and it works perfectly fine and connects with the database with no error. but when i deploy the app in Linux, it is throwing an error that says connection that says "Network Error or Instance related..." I've used the following code as a connection string: "Server=tcp:telda.com.et,1433;initial catalog=Database;user id=username;password=password;" Do i need to install something on the linux machine to make it work?? Note that with the following connection string, the application works perfectly fine on the Windows client