How to catch getaddrinfo ENOTFOUND

At the very top level, you can do

process.on('uncaughtException', function(err) {
  console.log('### BIG ONE (%s)', err);
});

You just need to handle the error event, as stated in the error message. According to the documentation:

If any error is encountered during the request (be that with DNS resolution, TCP level errors, or actual HTTP parse errors) an 'error' event is emitted on the returned request object.

Here is a usage example:

var getRequest = _http.get(options, function(res) {
    // …
});
getRequest.on('error', function (err) {
    console.log(err);
});

which yields:

$ node test.js
{ [Error: getaddrinfo ENOTFOUND] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }