[1938] logged "notauth" NOTIFYs.

also improved in-auth and not-auth cases of logs with the sender endpoint
information.

src/bin/auth/auth_messages.mes

@@ -266,9 +266,16 @@ bug ticket for this issue.
 This is a debug message issued when the authoritative server has received
 a command on the command channel.
 
-% AUTH_RECEIVED_NOTIFY received incoming NOTIFY for zone name %1, zone class %2
+% AUTH_RECEIVED_NOTIFY received incoming NOTIFY for zone %1/%2 from %3
 This is a debug message reporting that an incoming NOTIFY was received.
 
+% AUTH_RECEIVED_NOTIFY_NOTAUTH received bad NOTIFY for zone %1/%2 from %3
+The authoritative server received a NOTIFY message, but the specified zone
+doesn't match any of the zones served by the server.  The server doesn't
+process the message further, and returns a response with the Rcode being
+NOTAUTH.  Note: RFC 1996 does not specify the server behavior in this case;
+responding with Rcode of NOTAUTH follows BIND 9's behavior.
+
 % AUTH_RESPONSE_FAILURE exception while building response to query: %1
 This is a debug message, generated by the authoritative server when an
 attempt to create a response to a received DNS packet has failed. The

src/bin/auth/auth_srv.cc

@@ -747,6 +747,8 @@ AuthSrvImpl::processNotify(const IOMessage& io_message, Message& message,
                            std::auto_ptr<TSIGContext> tsig_context,
                            MessageAttributes& stats_attrs)
 {
+    const IOEndpoint& remote_ep = io_message.getRemoteEndpoint(); // for logs
+
     // The incoming notify must contain exactly one question for SOA of the
     // zone name.
     if (message.getRRCount(Message::SECTION_QUESTION) != 1) {
@@ -780,6 +782,8 @@ AuthSrvImpl::processNotify(const IOMessage& io_message, Message& message,
             dsrc_clients->find(question->getName(), true, false).exact_match_;
     }
     if (!is_auth) {
+        LOG_DEBUG(auth_logger, DBG_AUTH_DETAIL, AUTH_RECEIVED_NOTIFY_NOTAUTH)
+            .arg(question->getName()).arg(question->getClass()).arg(remote_ep);
         makeErrorMessage(renderer_, message, buffer, Rcode::NOTAUTH(),
                          stats_attrs, tsig_context);
         return (true);
@@ -795,7 +799,7 @@ AuthSrvImpl::processNotify(const IOMessage& io_message, Message& message,
     }
 
     LOG_DEBUG(auth_logger, DBG_AUTH_DETAIL, AUTH_RECEIVED_NOTIFY)
-      .arg(question->getName()).arg(question->getClass());
+        .arg(question->getName()).arg(question->getClass()).arg(remote_ep);
 
     const string remote_ip_address =
         io_message.getRemoteEndpoint().getAddress().toText();