How to configure LDAP for workstation login

I have installed Ubuntu on a workstation. We have a Linux DC server on the network. I want to have users log in using domain credentials. According to other threads, LDAP is the way to do that. I know nothing about LDAP - to that point, recommended newbie links for LDAP are welcomed. Those I have found require a lot of assumed knowledge.

I believe LDAP is running on the DC. The following command works from another Linux hosts in the network:
$ ldapsearch -xLLL -H ldap://mail:389 -D "cn=Administrator,CN=Users,dc=HPRS,dc=local" -W -b "dc=HPRS,dc=local"

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Can someone point me it the right direction?
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You said you have Linux DC? can you please confirm the domain controller are windows based or Linux based?
MarkAuthor Commented:
The Active Directory/Domain Controller is Linux running Samba 4. For Windows domain clients, this works just fine, just like SBS. Now I'm trying to do the same for Linux workstation clients.
MarkAuthor Commented:

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MarkAuthor Commented:
I found the answer
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