Deployment failure because of end point uniqueness

Hi,

When I am creating a new virtual machine in the existing cloud service I am getting below error message.

The operation 'bca1ee4afad5abaca6b067d6c85d37ff' failed: 'Port 1433 is already in use by one of the endpoints in this deployment. Ensure that the port numbers are unique across endpoints within a deployment

What I can understand from the message I cannot use same port number within a deployment.

Solution to this problem can be using different Public and Private port configuration. Below is the example.

Public Port : 40001

Private Port : 1433

Kindly help by answering below questions.

1) Is there any other solution to this problem?

2) By using different public port will I be exposed to any security threat?

I will appreciate any help...let me know if you need any other detail.

Thanks.