Selenium don't initialized if 127.0.0.1 have more then one alias in hosts file

[lukeis]

Originally reported on Google Code with ID 3280

What steps will reproduce the problem?
1. write more then one alias for 127.0.0.1, (ex. www.100myr.com) in hosts file in c:\windows\system32\drivers\etc\
2. try to initialize selenium driver (ex. driver = new FirefoxDriver();)

What is the expected output? What do you see instead?
I see next error
org.openqa.selenium.UnsupportedCommandException: Bad request

Command duration or timeout: 1.08 seconds
Build info: version: '2.17.0', revision: '15546', time: '2012-01-16 17:11:34'
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version:
'1.7.0'
Driver info: driver.version: FirefoxDriver

Selenium version: 2.17.0
OS: Windows XP
Browser: Firefox 
Browser version: 9.0.1

If I have only one alias for 127.0.0.1 then I haven't error.

Reported by Sergewar on 2012-01-26 06:43:49

[lukeis]

Reported by barancev on 2012-01-26 09:01:10

• Labels added: Component-WebDriver

[lukeis]

Can you post your entire hosts file, please?

Reported by dawagner on 2012-01-26 18:25:47

• Status changed: NeedsClarification

[lukeis]

File "hosts" in attach.

Reported by Sergewar on 2012-01-27 09:02:29

---

- _Attachment: [hosts_orig](https://storage.googleapis.com/google-code-attachments/selenium/issue-3280/comment-3/hosts_orig)_

[lukeis]

I was able to reproduce this error as well on CENTOS 5.  Which by default includes you
machines hostname in /etc/hosts as 127.0.0.1

With my hosts file like:

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost vmdev localhost.localdomain
::1             localhost6.localdomain6 localhost6


FirefoxDriver fails.

With my host file changed to:


# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost

127.0.0.2 vmdev localhost.localdomain

::1             localhost6.localdomain6 localhost6

The FirefoxDriver works fine.

This happens both using the driver directly, and through the RemoteDriverServer

Reported by crnelson on 2012-02-04 16:38:48

[lukeis]

I'm seeing exactly the same problem with Selenium 2.20.0 on CentOS 5.7. The workaround
described in the previous comment (Feb 4th 2012) fixed the problem. 

However, I've also noticed that it is possible to run the FirefoxDriver successfully
with more than one alias for 127.0.0.1 in /etc/hosts just so long as the localhost
alias is the first one mentioned. That is, with /etc/hosts looking like below, trying
to initialise the FirefoxDriver fails with the "org.openqa.selenium.UnsupportedCommandException:
Bad request" problem...

------------------------------/etc/hosts---------------------------
# Do not remove the following line, or various programs
# that require network functionality will fail.

127.0.0.1    myalias myotheralias localhost.localdomain localhost

::1          localhost6.localdomain6 localhost6

-------------------------------------------------------------------


But, if the order of the 127.0.0.1 aliases is changed to put localhost at the front
then the FirefoxDriver works fine...

------------------------------/etc/hosts---------------------------
# Do not remove the following line, or various programs
# that require network functionality will fail.

127.0.0.1    localhost localhost.localdomain myalias myotheralias

::1          localhost6.localdomain6 localhost6

-------------------------------------------------------------------

Hope this helps.

Reported by george.harley on 2012-03-15 13:00:18

[lukeis]

I too had same issue on my XP machine and when followed the comment# 4 fixed the issue.

Thanks,
Aditya

Reported by gentlemayhem on 2012-03-28 06:33:54

[lukeis]

This issue may have been fixed in 2.21. Please report back if this now works better.

Reported by kristian.rosenvold on 2012-04-14 19:48:29

[lukeis]

I tried this with 2.21 and it is still an issue.  Changing the 127.0.0.1 entry fixes
it.

Reported by mattluce on 2012-05-16 14:05:49