Testing a server's port 8443, one attempt fails instantly with “connection refused”, while testing another server's port 8443 just hangs until it times out. What does each result suggest?
En testant le port 8443 d'un serveur, une tentative échoue instantanément avec « connexion refusée », tandis qu'un test du port 8443 d'un autre serveur reste bloqué jusqu'à expiration du délai. Que suggère chaque résultat ?
Answers
ARefused: a firewall dropped the packets; timeout: the host answered but has no service listeningRefus : un pare-feu a rejeté les paquets ; délai expiré : l'hôte a répondu mais aucun service n'écoute
BRefused: host reachable but no service on the port; timeout: traffic probably dropped by a firewallRefus : hôte joignable mais aucun service sur le port ; délai expiré : trafic probablement bloqué par un pare-feu
CBoth results mean that the two servers are powered off, since neither of them accepted the connectionLes deux résultats signifient que les deux serveurs sont éteints, puisqu'aucun n'a accepté la connexion
DBoth results mean the DNS names are wrong, so the tests reached the wrong machines entirelyLes deux résultats signifient que les noms DNS sont faux et que les tests ont visé les mauvaises machines
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