// server down
{ Error: connect ECONNREFUSED 127.0.0.1:1337
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1061:14)
errno: 'ECONNREFUSED',
code: 'ECONNREFUSED',
syscall: 'connect',
address: '127.0.0.1',
port: 1337 }
// network down
{ Error: getaddrinfo ENOTFOUND www.duckduckgo.com
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:58:26)
errno: 'ENOTFOUND',
code: 'ENOTFOUND',
syscall: 'getaddrinfo',
hostname: 'www.duckduckgo.com' }