find an unused port in your localhost
var findPort = require('find-port')
// scan a range
findPort('127.0.0.1', 8000, 8003, function(ports) {
console.log(ports)
})
// scan explicitly
findPort('127.0.0.1', [8000, 8011], function(ports) {
console.log(ports)
})- Since version 2.0.0 a local interface must be specified
- This module is not designed to scan remote ports only local ones.