for server in serverList:

            # Required parameters
            try:
                ldapConnection = server['connection']
                ldapVersion = server['version']
                ldapUseTls = server['tls']
                ldapBindDn = server['binddn']
                ldapBindPassword = server['bindpassword']
                groupList = server['groups']
                if 'memberAttr' in config:
                    _memberAttr = config['memberAttr']
            except Exception as error:
                print("[LdapUserList::Run] Module LastLogin misses some parameters: " + str(error.message))
                exit()

            #
            # LDAP connection
            #

            con = ldap.initialize(ldapConnection);
            con.set_option(ldap.OPT_PROTOCOL_VERSION, ldapVersion)
            con.set_option(ldap.OPT_DEREF, ldap.DEREF_ALWAYS)

            if ldapUseTls:
                con.set_option(ldap.OPT_X_TLS_DEMAND, True)

            try:
                con.simple_bind_s(ldapBindDn, ldapBindPassword)
            except Exception as error:
                print("[LdapUserList::Run] LDAP connection failed: " + str(error.message))
                exit()

            if (verbose): print "[LdapUserList::Run] LDAP connected to " + ldapConnection + " as: " + con.whoami_s()

            #
            # Query for entries
            #

            userDict = {}  # <========== this

            for group in groupList:
                if(verbose): print("[LdapUserList::Run] Searching group " + group)

                result = con.search_s(group, ldap.SCOPE_SUBTREE, "objectClass=*", [_memberAttr])
                for g in result:
                    groupname = g[0]
                    # Check if we have some members
                    if not _memberAttr in g[1]: continue
                    userlist = g[1][_memberAttr]
                    userDict[groupname] = userlist

        #
        # Print entries
        #
        _result.append("groupdn;userdn")

        for (k,v) in userDict.iteritems(): # <========= this
            for user in v:
                _result.append(k + ";" + user)