Mobile Development (Backend migration and IP change)

I need an existing app to be migrated/moved from amazon to a different host. NO APP DEVELOPMENT IS REQUIRED APART FROM IP/DNS CHANGE IN THE IOS APP CODE. This is a test environment so the data is limited and not a big risk Work required. 1. Move/Migrate the backend from amazon EC2 and the database from amazon DB2 to a different host. LINUX based VPS. Consultant will have access to SSH and Webmin control panel (You must be familiar with Linux servers) 2. Redirect the app to a new host (IP) 3. Check and ensure that all connections and APIs are working. Currently everything works fine. 4. Resubmit the build to App Store if required. 5. We will require you to sign a basic NDA contract - Please give your time and dollar estimate. In our estimate, this process should not take more than 2-3 hours. Please note that you should be comfortable in changing the IP/dns in the app to the new host. This may need re-submission to the app store. Hence you should also be able to read and modify this in existing iOS app code.