Notice: Create a file under /etcetera/apt/resources.checklist.d, not the /etcetera/apt/sources.checklist file the place the distribution's Formal repository addresses are located. It is a system that will not destabilize your process. It is recommended. Mainframe and midrange migration Cut down infrastructure fees by relocating your mainframe and midrange apps to Azure. https://www.hostscheap.com/domain-name-registration