Authenticate Using SASL and LDAP with ActiveDirectory

[MongoFan]

Hi ,

I am using mongoDB 3.2 version and trying to configure SASL and LDAP with Active Direcory.

When I am trying to configure mentioned on mongo doc : https://docs.mongodb.com/manual/tutorial/configure-ldap-sasl-activedirectory/

I have configured the saslauthd.conf file as below:

ldap_servers: <ldap uri>

ldap_use_sasl: yes

ldap_mech: DIGEST-MD5

ldap_auth_method: fastbind

and trying to test my connectivity :

testsaslauthd -u <my user> -p <AD password> -f /var/run/saslauthd/mux

0:No "authentication failed"

tail -10 /var/log/messages

saslauthd[]: No worthy mechs found

saslauthd[]: do_auth : auth failure : [user=<user_name>] [service=imap] [realm=] [mech=ldap] [reason=unknown]

But when I provide my AD userID and Password to the saslauthd conf file, it works and authenticate against mongodb external database user:

cat /etc/saslauthd.conf

ldap_servers: <ldap uri>

ldap_search_base: dc=some,dc=example,dc=com

ldap_mech: DIGEST-MD5

ldap_bind_dn: cn=my user name,ou=some,dc=example,dc=com

ldap_password: <AD password>

testsaslauthd -u <my user> -p <AD password> -f /var/run/saslauthd/mux

OK "success"

What is wrong I am doing here ? 

If I want to configure auth for multiple user, how do I achieve this ?