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I am trying to use Xvfb with firefox to run test automation headless. However, I am getting the following message on starting xvfb.

XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/cvms1247:99
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
Initializing built-in extension Generic Event Extension
Initializing built-in extension SHAPE
Initializing built-in extension MIT-SHM
Initializing built-in extension XInputExtension
Initializing built-in extension XTEST
Initializing built-in extension BIG-REQUESTS
Initializing built-in extension SYNC
Initializing built-in extension XKEYBOARD
Initializing built-in extension XC-MISC
Initializing built-in extension SECURITY
Initializing built-in extension XINERAMA
Initializing built-in extension XFIXES
Initializing built-in extension RENDER
Initializing built-in extension RANDR
Initializing built-in extension COMPOSITE
Initializing built-in extension DAMAGE
Initializing built-in extension MIT-SCREEN-SAVER
Initializing built-in extension DOUBLE-BUFFER
Initializing built-in extension RECORD
Initializing built-in extension DPMS
Initializing built-in extension Present
Initializing built-in extension X-Resource
Initializing built-in extension XVideo
Initializing built-in extension XVideo-MotionCompensation
Initializing built-in extension SELinux
Initializing built-in extension GLX

Then I tried the following command:

  Xvfb :001 -nolisten inet6
  export http_proxy=http-proxy.nwie.net:8080

The following message disappeared.

  XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
 _XSERVTransOpen: transport open failed for inet6/cvms1247:99
 _XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6

The usage of headless:

  if OS::windows? || ENV['PhantomJS'] == 'true'
    browser = Selenium::WebDriver.for :remote, url: 'http://localhost:8001'
  elsif OS::linux?
    require 'headless'
    headless = Headless.new
    headless.start
    browser = Selenium::WebDriver.for :firefox
    at_exit do
      browser.close
      headless.destroy
    end
  else
    raise 'Unknown OS'
  end

Environment: 

 Ruby: 1.9.3
 Jenkins: 1.58
 Selenium webdriver: 2.53
 headless: 2.3.1
 Xvfb: yum install xorg-x11-server-Xvfb
 firefox: 33.0
 Linux: 2.6.32-573.12.1.el6.x86_64

What am I missing?

fongfong
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1 Answers1

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There is no error, or you forgot to include it.

The example output you posted does not contain the word "error".

You might be misled by the "Unable to open socket for inet6" message(s). To me this looks like informational messages that ipv6 will not be used by this x server. Initialization after that succeeds, so most likely ipv4 worked ok or something.

Ludwig Schulze
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  • Thank you Ludwig! I tried the command: Xvfb :001 -nolisten inet6 – fongfong Dec 14 '16 at 13:33
  • Hi Ludwid, I no long see those message after I used the command above. Now I am facing other errors, I updated my question with additional information. Please let me know what you think. Thanks! – fongfong Dec 14 '16 at 13:45
  • I have answered your original question. I will not play this game where you add more problems to your question every time the previous problem is solved. Good luck and all the best whishes. – Ludwig Schulze Dec 15 '16 at 19:20
  • Hi Ludwig, Thank you for your answer. That was very helpful! I will submit a new question. Thanks again! – fongfong Dec 15 '16 at 19:27