Please correct any misunderstandings: When we set the name of a System/Server, I started with hostnames ns1 and ns2. Now I'm thinking that was an error. I think hostnames should be generic and the purpose/designation of a host should be defined in DNS as a CNAME. So now I have servers with hostnames ns1 and ns2. I'd like to change these to something generic like alpha and bravo, or jupiter and neptune... Do we just need to change the names in System/Server names? Or do we need to make our own changes in /etc/hosts or /etc/hostname? When changing the name of DNS systems, do we need to manually change DNS at the OS level, or is that handled by ISPConfig? (/etc/resolvconf/resolv.conf.d/head, /etc/resolv.conf, etc) And if we change a name like ns1.foo.bar, I would be comfortable checking all other zone data, Domains, Mail configs, etc in ISPConfig to ensure it's correct in all locations. But is it expected that we need to do something else manually, especially to propagate changes to all servers that need the info? Of course, what I'm finding is that when just getting started, changes to DNS have a way of making the environment itself unreachable. I've purchased a new domain from my registrar just to serve as a home for the environment, not related to the applications/sites that will be hosted. I've hard-set "glue records" with my registrar, pointing ns1.mydomain.tld to the IP address of my primary ISPConfig server, and ns2 to my secondary ISPConfig server which is being configured as backup for all control applications. In ISPConfig, I will also set a CNAME like "panel" to the ISPConfig server (=alpha, =ns1). This means if I break DNS then I won't be able to get back to the ISPConfig web page to fix it without other tweaks. Is that a valid configuration or is that all a really bad plan? And ... If I want to RTFM, are these topics documented anywhere? Please remember, I'm still getting familiar with the environment, learning as fast as I can, R'ingTFM, experimenting, etc. There are just things like this where I still don't know what to expect from the software versus what is expected from the administrator. Thanks!