I am doing ldap authentication on limesurvey but when I am opening documentation , there is a line that i need to set ldap to true in config.php. but in config.php there is no option to set ldap.

there are many option in ldap.default.php .
So can u provide me the exact way to doing this .

Check config-defaults.php. If you find the according setting there, copy it to config.php and adjust it.

k I will do it , and please let me know if ldap authentication is possible in limesurvey.

actually we have ad setup here and we want existing user to log in into limesurvey with same authentication. Is this possible to do ldap authentication because I have red into your forum that there is no support for ldap authentication.

LDAP is available at Limesurvey to some extend. Please search the manual for more information.

thanks dear,
But you are saying some extend , i dint get u.
You just tell me in my environment whether it will support ldap authentication or not.
because we have 40000 users on ldap or AD in our company.
I want all the users to login through their existing username and password.

I'll ask our LDAP expert...

Hi,
It's very important to understand what's your trying to do. Currently LDAP support in LS enables the survey designer to import tokens (invitations) from an LDAP directory. It doesn't enale you to authenticate to LS by using your LDAP credentials.

However if you need to login to LS with your LDAP credential, there is another way:
* set up LS to delegate authentication to your webserver docs.limesurvey.org/tiki-index.php?page=...ion_to_the_Webserver
* and develop your own hook functions for automatic user import

Regards,
Thibault