advanced·20 min·Payant
DNS Round-Robin Backend Failure
Internal DNS round-robin sometimes sends users to a backend that went offline after maintenance.
Scénario
Westhaven Energy's internal portal uses two backend addresses so maintenance on one host should not interrupt users. After a maintenance window, clients receive an answer that sometimes leads to a service that no longer responds. Repair the name-service configuration so the published pool contains only usable backends, while preserving the remaining service path.
Objectifs d'apprentissage
- dns
- round-robin
- multi-address records
Topologie et configuration
Cet environnement contient 5 appareils (1 Dns, 3 Hosts, 1 Switch). Vous configurez et dépannez les compétences réseau listées ci-dessus.