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Regarding VRRP messages, what are the following statements correct?
What are the following attacks that are special message attacks?
Note: Special packet attacks: one is a large ICMP message; the other is an ICMP unreachable message; the third is a Tracert message.
Which part of the attack packet is matched by the blacklist to achieve attack prevention?
DDoS is an abnormal packet that an attacker sends a small amount of non-traffic traffic to the attack target (usually a server, such as DNS or WEB) through the network, so that the attacked server resolves the packet when the system crashes or the system is busy.
Note: DoS: The attacker sends a small amount of abnormal traffic of non-traffic traffic to the attacking target through the network, so that the attacked server resolves the packet when the system crashes or the system is busy. Achieve the inability to serve normal users. DDoS: is a distributed DoS.
The USG series firewall is deployed on an enterprise network. You need to log in to the USG through telnet or ssh. Each command entered by the user must be authorized by the server to continue. Which of the following authentication methods can meet the requirements of the enterprise?
