Restores seednode host/ip resolution via certificates.

nucypher/characters/lawful.py

@@ -1153,9 +1153,18 @@ class Ursula(Teacher, Character, Operator):
         # Parse node URI
         host, port, staking_provider_address = parse_node_uri(seed_uri)
 
+        # Fetch the hosts TLS certificate and read the common name
+        try:
+            certificate, _filepath = network_middleware.client.get_certificate(host=host, port=port)
+        except NodeSeemsToBeDown as e:
+            e.args += (f"While trying to load seednode {seed_uri}",)
+            e.crash_right_now = True
+            raise
+        real_host = certificate.subject.get_attributes_for_oid(NameOID.COMMON_NAME)[0].value
+
         # Load the host as a potential seed node
         potential_seed_node = cls.from_rest_url(
-            host=host,
+            host=real_host,
             port=port,
             network_middleware=network_middleware,
         )

nucypher/network/middleware.py

@@ -72,7 +72,7 @@ class NucypherMiddlewareClient:
         except socket.timeout:
             if current_attempt == retry_attempts:
                 message = f"No Response from {host}:{port} after {retry_attempts} attempts"
-                self.log.info(message)
+                SSL_LOGGER.info(message)
                 raise ConnectionRefusedError("No response from {}:{}".format(host, port))
             SSL_LOGGER.info(f"No Response from {host}:{port}. Retrying in {retry_rate} seconds...")
             time.sleep(retry_rate)