Beginner's Guide

GMail
If you activate the GMail plug-in, users7 will be7 able to log onto your site7 by using their GMail
address and password. Prior registration is not necessary. With the first login, the System plug-in Joomla will
create a user account in its database. The GMail password is stored encrypted in the database, so your
users GMail accounts cannot be hacked. This plug-in7 facilitates the login process for your users.
Unfortunately, there is no advisory7in the login form that logging in7with7GMail is possible. You'll have to
add additional text or find another creative solution.
LDAP
The Lightweight Directory Access Protocol (LDAP)
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is an application protocol for reading and editing data
from directory service. It is used in companies7for managing department affiliation as well as employee
phone numbers.
dn: cn=John Doe,dc=example,dc=com
cn: John Doe
givenName: John
sn: Doe
telephoneNumber: [phone]
telephoneNumber: [phone]
mail: [e-mail]
manager: cn=Barbara Doe,dc=example,dc=com
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
objectClass: top
In order to7use this plug-in for authentication,7you will need7an LDAP Server (OpenLDAP) and you
have to configure the LDAP plug-in with the server specific data. You will find a good tutorial at
joomla.org: LDAP from Scratch
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.
CAPTCHA
Captcha is a new feature since Joomla 2.5. A Captcha is a program that can tell whether its user is a
human or a computer. You've probably seen them — colorful images with distorted text at the bottom of
Web registration forms. Captchas are used by many websites to prevent abuse from "bots," or automated
programs usually written to generate spam. No computer program can read distorted text as well as
humans can, so bots cannot navigate sites protected by captchas. The plug-in uses Google reCAPTCHA
service to prevent spammers. To get a public and private key for your domain, visit http://google.com/
recaptcha. To add a captcha for new account registration, go to Options in the User Manager and select
Captcha – reCaptcha.
Joomla! 2.5 - Beginner’s Guide
Monday, 30 January 2012! Page 182
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http://en.wikipedia.org/wiki/Ldap
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http://community.joomla.org/component/zine/article/507-developer-ldap-from-scratch-sam-moffatt.html