Installing & Configuring Centrify Express on Rhel 6.4

What is Centrify Express ?

Centrify Express is a comprehensive suite of free Active Directory-based integration solutions for authentication, single sign-on, remote access, file-sharing, monitoring and cloud security for cross-platform systems. It is the quickest and most proven solution for integrating UNIX, Linux and Mac systems with Windows, and delivers more functionality and more to upgrade to when compared to other free offerings.

Centrify Express: Configuring Active Directory Authentication for Linux (rhel 6.4)
Download the package from  Centrify Express
* Before Installing Centrify Express be sure that you assign a Hostname to your Computer and Ensure that your /etc/nsswitch.conf contains the following lines
hosts: files dns
* Make sure that your dns is resolving the quires
* Now untar the Downloaded Centrify-Express Package

# tar -xzvf centrify-suite-2013-rhel3-x86_64.tar.gz

then run the shell script

# ./install-express.sh

The installation script begins by running the adcheck program to check the operating
system, disk space, DNS resolution, network connectivity, Active Directory configuration
and other requirements on the computer. If you receive errors or warnings, see
the Direct Control Express Administrator’s Guide for information on how to correct
them.
Respond to the installation Prompt

* How do you want to proceed? (E|S|X|C|Q) [X]:Accept the default, X (for Express  Edition), by clicking Enter.

* Do you want to run adcheck to verify your AD 

environment? (Q|Y|N) [Y]: 

Accept the default answer, Y (to run adcheck) by clicking 

Enter.

* Please enter the Active Directory domain to check:  

Enter the fully qualified name of your AD domain; for example, 

mak.linuxadmin.com

* Join an Active Directory domain? (Q|Y|N) [Y]  

Accept the default answer, Y to join a domain. 

* Enter the Active Directory authorized user[administrator]:

* Enter the password for the Active Directory user:

* Click Enter to select the defaults for the following prompts: 

* Enter the computer name: [mak] 

* Enter the container DN [Computers]: 

* Enter the name of the domain controller [auto detect]: 

* Reboot the computer after the installation (Q|Y|N) [Y}:

After completion of installation the system will reboot

To verify the installation run the cmd

# adcheck

To join the domain the cmd is

# adjoin ad.example.com -u admin_user --force