@desind,   No limit that I know of on the CM side. Please start a new thread and provide your LDAP configuration, what happens in the logs and also the "abc_efg_scd_dfc" user LDIF entry.   There are lots of reasons for failures, so it is important we start with what you observe and the items involved. ... View more

@Fawze,   Currently, LDAP authentication for Cloudera Manager is only available in Cloudera Enterprise as outlined here:   https://www.cloudera.com/documentation/enterprise/latest/topics/cm_ig_feature_differences.html   If you wish to discuss licensing options with Sales, the following form can be used:   https://www.cloudera.com/contact-sales.html   Ben     ... View more