HostId

Determine Universally Unique Identifier (UUID) of Host

Abstract

This is a small Node module for determining the Universally Unique Identifier (UUID) of a host, based on a simple fingerprint derived from the number of CPUs, the CPU architecture, the operating system name, and the host name. As long as those fingerprint sources do not change, the resulting host UUID will not change, too.

Getting HostId

$ npm install [-g] hostid

Using HostId

# Unix shell
$ hostid=`hostid`
$ echo "Host Id: $hostid"

# Node program
import HostId from "hostid"
let hostid = HostId()
console.log(`Host Id: ${hostid}`)

License

Copyright (c) 2016-2022 Dr. Ralf S. Engelschall (http://engelschall.com/)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.