Description of problem:  ipa-adtrust-install  doesn't allow NetBIOS name to
have '-' ( dash ) character, only uppercase characters (DNS allows for '-'
char)
  Please See the Microsoft url

https://support.microsoft.com/en-us/kb/188997

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

# rpm -qif /sbin/ipa-adtrust-install
Name        : ipa-server-trust-ad
Version     : 4.1.0
Release     : 18.el7_1.3
Architecture: x86_64
Install Date: Tue 18 Aug 2015 04:44:42 PM MDT
Group       : System Environment/Base
Size        : 382010
License     : GPLv3+
Signature   : RSA/SHA256, Mon 23 Mar 2015 12:30:54 PM MDT, Key ID
199e2f91fd431d51
Source RPM  : ipa-4.1.0-18.el7_1.3.src.rpm
Build Date  : Thu 19 Mar 2015 12:44:00 PM MDT
Build Host  : x86-021.build.eng.bos.redhat.com
Relocations : (not relocatable)
Packager    : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
Vendor      : Red Hat, Inc.
URL         : http://www.freeipa.org/
Summary     : Virtual package to install packages required for Active Directory
trusts



How reproducible:


Steps to Reproduce:
1. create domain called example-test.com (or add to local hosts file)
2. ipa-server
3.

Actual results:
# ipa-adtrust-install --netbios-name=EXAMPLE-TEST.COM -a xxxxxx

The log file for this installation can be found in
/var/log/ipaserver-install.log
==============================================================================
This program will setup components needed to establish trust to AD domains for
the IPA Server.

This includes:
  * Configure Samba
  * Add trust related objects to IPA LDAP server

To accept the default shown in brackets, press the Enter key.

Do you want to enable support for trusted domains in Schema Compatibility
plugin?
This will allow clients older than SSSD 1.9 and non-Linux clients to work with
trusted users.

Enable trusted domains support in slapi-nis? [no]:

There was error to automatically re-kinit your admin user ticket.
Proceeding with credentials that existed before

Illegal NetBIOS name [EXAMPLE-TEST.COM].

Up to 15 characters and only uppercase ASCII letter and digits are allowed.
Enter the NetBIOS name for the IPA domain.
Only up to 15 uppercase ASCII letters and digits are allowed.
Example: EXAMPLE.



Expected results:


Additional info:
  Please See the Microsoft url

https://support.microsoft.com/en-us/kb/188997