View Full Version : [SOLVED] LDAP client log in failed due to pam authentication failure

October 26th, 2013, 02:01 PM
Dear all,

I followed this guide (https://help.ubuntu.com/lts/serverguide/openldap-server.html) to install OpenLDAP on a server and a client. After installation, i can log in the OpenLDAP server with an LDAP user. On a client machine, I can query the LDAP user using 'id' command. However, when I tried to log in the client machine with a LDAP user account, I got authentication problem. Looking at /var/log/auth.log, I found the following error:

pam_ldap: ldap_initialize Bad parameter to an ldap routine
pam_authenticate: Authentication failure

Googled but not able to find anything useful. Does anyone know how to solve this problem? Both server and client machines installed Ubuntu 12.04

Thanks in advance.


October 26th, 2013, 02:53 PM
I solved the problem by replacing the /etc/ldap.conf on the client machine with the same named file from another client machine which has a working LDAP configuration. Unfortunately, I don't know what configuration(s) in ldap.conf caused the problem.