ashb commented on a change in pull request #4006: [AIRFLOW-3164] Verify server 
certificate when connecting to LDAP
URL: https://github.com/apache/incubator-airflow/pull/4006#discussion_r232260243
 
 

 ##########
 File path: airflow/contrib/auth/backends/ldap_auth.py
 ##########
 @@ -55,16 +55,18 @@ class LdapException(Exception):
 
 
 def get_ldap_connection(dn=None, password=None):
-    tls_configuration = None
-    use_ssl = False
     try:
         cacert = configuration.conf.get("ldap", "cacert")
-        tls_configuration = Tls(validate=ssl.CERT_REQUIRED, 
ca_certs_file=cacert)
-        use_ssl = True
-    except Exception:
+    except AirflowConfigException:
         pass
 
 Review comment:
   It's not required - if it is not specified then it will use the normal 
system cert chain to verify the LDAP server cert.
   
   This is only required if a self-signed/private-CA is used.

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