Raise errors when querying DNS

src/ddns_service/dns.py

@@ -376,15 +376,12 @@ class DNSService:
             resolver.lifetime = self.timeout
             answers = resolver.resolve(fqdn, record_type)
             return str(answers[0]) if answers else None
-        except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer,
-                dns.resolver.NoNameservers):
+        except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
             return None
         except Exception as e:
-            logging.warning(
-                f"DNS query failed: hostname={hostname} zone={zone} "
-                f"type={record_type}: {e}"
+            raise DNSError(
+                f"DNS query failed for {hostname}.{zone} {record_type}: {e}"
             )
-            return None
 
     def update_record(self, hostname, zone, ip, ttl):
         """