Having Install-RubrikBackupService confirming the machine in DNS

[fernandesdba]

Description

Having Install-RubrikBackupService confirming the machine in DNS and checking if the machine is up/down prior start installing the RBS

Related Issue

related to the issue #81

How Has This Been Tested?

Tested at Ranger lab

Types of changes

What types of changes does your code introduce? Put an x in all the boxes that apply:

• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

Go over all the following points, and put an x in all the boxes that apply. If you're unsure about any of these, don't hesitate to ask. We're here to help!

• [X] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTION document.
• [ ] I have updated the CHANGELOG file accordingly for the version that this merge modifies.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.