Configure DB2 LDAP authentication

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http://serverfault.com – I want to configure LDAP auth in DB2. From IBM docs I learned that first I need to configure LDAP authentication in operating system. But in documentation described old way of configuring LDAP for Operating system. RedHat recommends to use only new SSSD tool. So, I configured it using SSSD (but without SSL, setting FORCELEGACY parameter in authconfig file to YES). Now I can login to system as LDAP user. But one of the step (step 1.e) in IBM docs assumes that we use old way of LDAP configuring (I think so). So I can't properly configure LDAP authentication in DB2. Can anyone help me to c (HowTos)