We work on a management software which has a GUI.This GUI starts with user 
authentication screen where in the user entered username and password are also 
sent to provider which is  open pegasus CIM provider.  This authentication 
works well on ubuntu 14.04 on normal set up  but not on IBM power pc  .We get 
an error "User unauthorized" for power PC.
On RHEL also the authentication works fine.

Here is a cimserver trace which we captured.

This is a snippet from normal(working) trace.
/////////////////////////////
444805839s-853867us: XmlIO [7036:18446744073709551614:HTTPConnection.cpp:932]: 
<!-- Response: queue id: 21 -->
HTTP/1.1 200 OK

Content-Type: application/xml; charset=utf-8

transfer-encoding: chunked

Ext:

Cache-Control: no-cache

Man: http://www.dmtf.org/cim/mapping/http/v1.0; ns=27

27-CIMOperation: MethodResponse

<?xml version="1.0" encoding="utf-8" ?>
<CIM CIMVERSION="2.0" DTDVERSION="2.0">
<MESSAGE ID="927002" PROTOCOLVERSION="1.0">
<SIMPLERSP>
<IMETHODRESPONSE NAME="EnumerateInstances">
</IMETHODRESPONSE>
</SIMPLERSP>
</MESSAGE>
</CIM>

///////////////////////////

But in IBM system trace shows error for http response status as well as CIM 
method response.
This is a snippet from IBM machine trace.

////////////////////
HTTP/1.1 401 Unauthorized^M
PGErrorDetail: User%20Unauthorized^M
content-length: 0000000000^M
WWW-Authenticate: Basic realm="ubuntu-habanero-3"^M
//////////////////////////

On debugging further we found that authentication module flow is like this:
BasicAuthenticationHandler::authenticate() 
PAMBasicAuthenticator::authenticate()[PAMBasicAuthenticatorUnix.cpp]
We are getting a BASIC_AUTHENTICATION_FAILURE message after this function which 
we believe is causing the internal error while logging in.

We need to know if this call is different for IBM power pc systems or if
this is a known issue.Please advice

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https://bugs.launchpad.net/bugs/1519311

Title:
  authentication fails on ubuntu on remote login

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