Rivers, all lowercase. My first Linux machine was `congo`. My oldest extent one is `volga`. And my beefiest (biggest) machine is `nile`. My local backup NAS i

Rivers, all lowercase. My first Linux machine was `congo`. My oldest extent one is `volga`. And my beefiest (biggest) machine is `nile`. My local backup NAS is `danube`, and my offsite server is `yangtze`. If I were you, and didn't want boring job-themed names, choose a theme and use it. You could choose mountains, and your biggest machine could be `everest`, while your most sacred could be `olympus`. Or you could choose cities, Pokemon, anime characters, authors, fish, mammals, etc. Any category with a lot of items. Seas, for example, won't work because there aren't many.