What ENOTFOUND error in an http request, happening time to time, means?

Question

I have a nodejs server, running on an hosted cloud machine. An http request

var req = Http.request(options, function(res) { ... }

with options<

Answer 1

It's DNS errors, specifically, Node can't resolve a hostname "www.mysite.com" to an IP-address.

There can be various reasons for this:

• the hostname is just invalid
• your network connection is faulty
• your DNS server is faulty
• the DNS server that handles "mysite.com" is faulty

As a heads-up: while your question is valid, debugging the underlying cause (DNS issues) is off-topic on StackOverflow.