I’m using Ubuntu 12.04

LDAP: Install & Configure

1. sudo apt-get install slapd ldap-utils
   1. Enter password: [SetY0urP@$$wOrD]
2. dpkg-reconfigure slapd
   1. Omit OpenLDAP server configuration? No
   2. DNS domain name? domain.com | IP Address
   3. Organization name? My Organization
   4. Administrator password? Use the password during installation | Choose new one
   5. Database backend to use? HDB
   6. Remove the database when slapd is purged? No
   7. Move old database? Yes
   8. Allow LDAPv2 protocol? No
3. joe /etc/phpldapadmin/config.php (i’m using joe text editor, you may use the default text editor such vi)

   $servers->setValue('server','host','domain.com | IP Address');
   $servers->setValue('server','base',array('dc=domain,dc=com'));
   $servers->setValue('login','bind_id','cn=admin,dc=domain,dc=com');
   $config->custom->appearance['hide_template_warning'] = true;
   

LDAP: Install PHPLDAPAdmin

1. apt-get install libpam-ldap nscd | pkg-reconfigure ldap-auth-config
   1. LDAP server Uniform Resource Identifier: ldap://**Domain-Name-OR-IP-Address** ( Change the initial string from “ldapi:///” to “ldap://” before inputing your server’s information )
   2. Distinguished name of the search base: ( This should match the value you put in your LDAP server’s/etc/phpldapadmin/config.php file. )
   3. LDAP version to use: 3
   4. Make local root Database admin: Yes
   5. Does the LDAP database require login? No
   6. LDAP account for root: This should also match the value in your /etc/phpldapadmin/config.php
   7. LDAP root account password: LDAP-Root-Password
2. joe /etc/nsswitch.conf – add ldap before compat for each passwd, group, shadow
3. joe /etc/pam.d/common-session – add at the bottom: session required pam_mkhomedir.so skel=/etc/skel umask=0022
4. /etc/init.d/nscd restart
5. Access to PHPLDAPAdmin: http://domain.com/phpldapadmin

LDAP: Setting up LDAP Groups & Users

1. Go to http://domain.com/phpldapadmin
2. Login DN: cn=admin,dc=domain,dc=com
3. Login Password: Password configured during slapd configuration
4. To do:
   1. Create an Generic: Organization Units named Users
   2. Create a Generic: Posix Group named groups
   3. Create one or more Generic: User Account (make sure it’s under ou=users)
   4. (Optional) Add users to groups by clicking a group & Add New Attribute. Select memberUid and click on Update Object at the bottom.

LDAP: Test LDAP

ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3); 

$ldapconn = ldap_connect("domain.com")
    or die("Could not connect to LDAP server.");

$person = 'cn=username,ou=users,dc=domain,dc=com';
$password = 'password';

if ($ldapconn) {

    $ldapbind = ldap_bind($ldapconn, $person, $password);

    if ($ldapbind) {

    	$ldaptree = "ou=users,dc=domain,dc=com";
		$justthese = array("ou", "sn", "givenname");

		$result = ldap_search($ldapconn,$ldaptree,"givenName=$person",$justthese) or die ("Error in search query: ".ldap_error($ldapconn));

		$no = ldap_count_entries($ldapconn, $result);
		
		echo 'Count Entries: ' . $no . '<br>';

		$info = ldap_get_entries($ldapconn, $result);
		
		for ($i=0; $i<$info["count"]; $i++) 
		{
			echo $info[$i]['givenname'][0] . ' (' . $info[$i]['mail'][0] . ')';
			echo '<hr>';
		}

    } else {
        echo "LDAP bind ".$user." failed...";
    }

}

Reference: Installing LDAP on Ubuntu 12.04