A web server becomes unreachable. Its connection table is full of thousands of half-open connections from many addresses that sent SYN but never completed the handshake. What is happening?
Un serveur web devient injoignable. Sa table de connexions est pleine de milliers de connexions à moitié ouvertes, venant de nombreuses adresses qui ont envoyé un SYN sans jamais terminer la poignée de main. Que se passe-t-il ?
Answers
AThe DNS records for the server's name have all expiredLes enregistrements DNS du nom du serveur ont tous expiré
BThe server's TLS certificate has been revoked by its authorityLe certificat TLS du serveur a été révoqué par son autorité
CThe clients switched to HTTP/3, which the server cannot handleLes clients sont passés à HTTP/3, que le serveur ne gère pas
DA SYN flood is exhausting the server's pending-connection slotsUne inondation SYN épuise les emplacements de connexions en attente du serveur
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