Recibo muchos de estos mensajes en /var/log/syslog en mi nueva instalación de ubuntu 18.04 en un virtualbox sobre un host de Windows 10. Los obtuve en mi instalación anterior de ubuntu en la misma máquina y probé todo tipo de soluciones que encontré en Internet (como reemplazar resuelto con bind9) sin suerte, es decir, bind9 tuvo problemas para resolver hosts. Esto hace que navegar y cualquier otro software que use Internet sea lento.
Tenga en cuenta que el problema ocurre con 8.8.8.8, así como con un servidor dns interno en 10.255.255.0.
Estoy usando la última caja virtual para ejecutar mi último ubuntu 18.04. Cualquier trabajo arounds para esto? Hasta ahora probé:
- reemplazar systemd-resolved con bind9 (bind9 tuvo problemas para resolverse y la resolución de dns fue lenta)
- eliminar el enlace simbólico /etc/resolved.conf y codificar los valores en ese archivo
-
configurando la resolución dns para usar 8.8.8.8 (mismo problema)
Sep 20 11:23:21 kkpc systemd-resolved[553]: Using degraded feature set (UDP) for DNS server 10.255.255.0. Sep 20 11:23:26 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:23:30 kkpc systemd-resolved[553]: Using degraded feature set (TCP) for DNS server 10.255.255.0. Sep 20 11:23:35 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:23:40 kkpc systemd-resolved[553]: Using degraded feature set (UDP) for DNS server 10.255.255.0. Sep 20 11:23:40 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:23:48 kkpc systemd-resolved[553]: message repeated 3 times: [ Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.] Sep 20 11:23:51 kkpc systemd-resolved[553]: Using degraded feature set (TCP) for DNS server 10.255.255.0. Sep 20 11:23:55 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:24:02 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:24:05 kkpc systemd-resolved[553]: Using degraded feature set (UDP) for DNS server 10.255.255.0. Sep 20 11:24:05 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:24:15 kkpc systemd-resolved[553]: message repeated 2 times: [ Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.] Sep 20 11:24:21 kkpc systemd-resolved[553]: Using degraded feature set (TCP) for DNS server 10.255.255.0. Sep 20 11:24:25 kkpc systemd-resolved[553]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP. Sep 20 11:24:56 kkpc systemd-resolved[553]: message repeated 6 times: [ Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.]