Created attachment 510626 [details]
patch

Description of problem:
* Satellite 5.4.1 installation in an IPv6 only environment
* Apache configuration, cobbler_wsgi.conf:

    ProxyPass /cobbler_api http://localhost:25151/
    ProxyPassReverse /cobbler_api http://localhost:25151/

* In an IPv6 only environment, Apache resolves "localhost" as ::1
* Cobbler listens on 127.0.0.1 only

As a result of the above, Apache won't be able to reach cobbler and
proxy the requests coming from the web application and / or taskomatic.

Version-Release number of selected component (if applicable):
cobbler-2.0.7-11

How reproducible:
Always

Steps to Reproduce:
1. Satellite 5.4.1 in an IPv6 only environment
2. Check /var/log/rhn/rhn_taskomatic_daemon.log
  
Actual results:
Apache is unable to reach Cobbler, errors like:

ERROR com.redhat.rhn.taskomatic.task.CobblerSyncTask - RuntimeExceptioneError trying to sync to cobbler: XmlRpcException calling cobbler.
java.lang.RuntimeException: XmlRpcException calling cobbler.
      at com.redhat.rhn.manager.kickstart.cobbler.CobblerXMLRPCHelper.invokeMethod(CobblerXMLRPCHelper.java:72)
      at com.redhat.rhn.taskomatic.task.CobblerSyncTask.execute(CobblerSyncTask.java:70)
      at com.redhat.rhn.taskomatic.task.RhnJavaJob.execute(RhnJavaJob.java:80)
      at com.redhat.rhn.taskomatic.TaskoJob.execute(TaskoJob.java:168)
      at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
      at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:549)

Expected results:
Apache is able to reach Cobbler's XML-RPC

Additional info:
N/A