DrupalChat+Node.JS does not work

System:
-Windows 7
-VirtualBox with ubuntu 10.04 (nginx, php5-fpm, node.js)
-Drupal 7.15
-Node.JS v0.8.6
- http://drupal.org/project/nodejs

I was installing clear drupal, nodejs (integration) module and DrupalChat using http://drupal.org/node/1713530
In settings set "using node.js" and configure node.js integration module
My nodejs.config.js:

/**
* This configuration file was built using the 'Node.js server configuration builder'.
* For a more fully commented example see the file nodejs.config.js.example in the root of this module
*/
backendSettings = {
  "scheme":"http",
  "host":"192.168.0.205",
  "port":8081,
  "key":"/path/to/key/file",
  "cert":"/path/to/cert/file",
  "resource":"/socket.io",
  "publishUrl":"192.168.0.205/d7sc/dr-node/nodejs/publish",
  "serviceKey":"",
  "backend":{
  "port":80,
  "host":"http://vm/d7sc/dr-node",
  "messagePath":"/nodejs/message/"},
  "clientsCanWriteToChannels":true,
  "clientsCanWriteToClients":true,
  "extensions":"",
  "debug":true,
  "transports":["websocket",
  "flashsocket",
  "htmlfile",
  "xhr-polling",
  "jsonp-polling"],
  "jsMinification":true,
  "jsEtag":true,
  "logLevel":1};

After in ssh console write:

ubuntu@ubuntu-valentin:~/www/d7sc/dr-node/sites/all/modules/nodejs$ node server.js
Started http server.
   info  - socket.io started

And go to my website in browser.

In ssh console:

Authenticating client with key "c3d8cceb3a55037156fcf1a48e9e4e90"
Sending message to backend { authToken: 'c3d8cceb3a55037156fcf1a48e9e4e90',
  messageType: 'authenticate',
  clientId: 'eSSXHJycBMfbXOamnXjq' } { uri: 'http://http://vm/d7sc/dr-node:80/nodejs/message/',
  body: 'messageJson=%7B%22authToken%22%3A%22c3d8cceb3a55037156fcf1a48e9e4e90%22%2C%22messageType%22%3A%22authenticate%22%2C%22clientId%22%3A%22eSSXHJ
ycBMfbXOamnXjq%22%7D&serviceKey=',
  headers:
   { 'Content-Length': 173,
     'Content-Type': 'application/x-www-form-urlencoded' } }
Authenticating client with key "c3d8cceb3a55037156fcf1a48e9e4e90"
Sending message to backend { authToken: 'c3d8cceb3a55037156fcf1a48e9e4e90',
  messageType: 'authenticate',
  clientId: '2Er1LU1OTKPxqGr5nXjs' } { uri: 'http://http://vm/d7sc/dr-node:80/nodejs/message/',
  body: 'messageJson=%7B%22authToken%22%3A%22c3d8cceb3a55037156fcf1a48e9e4e90%22%2C%22messageType%22%3A%22authenticate%22%2C%22clientId%22%3A%222Er1LU
1OTKPxqGr5nXjs%22%7D&serviceKey=',
  headers:
   { 'Content-Length': 173,
     'Content-Type': 'application/x-www-form-urlencoded' } }
Error with authenticate client request: { [Error: getaddrinfo ENOENT] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }
Error with authenticate client request: { [Error: getaddrinfo ENOENT] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }
Error with authenticate client request: { [Error: getaddrinfo ENOENT] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }
Error with authenticate client request: { [Error: getaddrinfo ENOENT] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }
Authenticating client with key "c3d8cceb3a55037156fcf1a48e9e4e90"
Sending message to backend { authToken: 'c3d8cceb3a55037156fcf1a48e9e4e90',
  messageType: 'authenticate',
  clientId: 'oaZcct2C1SNRxtfOnXjt' } { uri: 'http://http://vm/d7sc/dr-node:80/nodejs/message/',
  body: 'messageJson=%7B%22authToken%22%3A%22c3d8cceb3a55037156fcf1a48e9e4e90%22%2C%22messageType%22%3A%22authenticate%22%2C%22clientId%22%3A%22oaZcct
2C1SNRxtfOnXjt%22%7D&serviceKey=',
  headers:
   { 'Content-Length': 173,
     'Content-Type': 'application/x-www-form-urlencoded' } }
Error with authenticate client request: { [Error: getaddrinfo ENOENT] code: 'ENOTFOUND', errno: 'ENOTFOUND', syscall: 'getaddrinfo' }

I testing chat in 2 PC. With node.js doesn't work, but ajax&long polling works well.

Thanks and sorry for my bad language