Hostname Generator

Valid hostnames use only the letters a-z, digits 0-9 and hyphens. A label cannot begin or end with a hyphen, each label is limited to 63 characters, and the full DNS name to 253. Underscores, spaces and most punctuation are not valid, which is why every name in this list is plain lowercase text, optionally with hyphens and digits.

Only for large, automated fleets. For machines that people log into by name, a neutral themed name ages far better: roles change, hardware gets swapped, and renaming a host means updating DNS, certificates, configs and monitoring everywhere. If you need the role visible, put it in a DNS CNAME (mail.example.com pointing at thor) rather than the hostname itself.

The hostname is the first label that identifies a single machine, such as thor. The domain name is the part that follows, such as example.com, and together they form the fully qualified domain name thor.example.com. This generator produces the machine part; pair it with your own domain or a local suffix like .lan or .home.arpa.

Yes. VMs and long-lived containers follow the same hostname rules, and themed names work well for anything you will reference by name. Short-lived containers created by an orchestrator are usually better left with generated names, since nobody types them and they are replaced constantly.