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Question 458 - SY0-601 discussion

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A cyber security administrator is using iptables as an enterprise firewall. The administrator created some rules, but the network now seems to be unresponsive. All connections are being dropped by the firewall Which of the following would be the best option to remove the rules?

A.
# iptables -t mangle -X
Answers
A.
# iptables -t mangle -X
B.
# iptables -F
Answers
B.
# iptables -F
C.
# iptables -2
Answers
C.
# iptables -2
D.
# iptables -P INPUT -j DROP
Answers
D.
# iptables -P INPUT -j DROP
Suggested answer: B

Explanation:

iptables is a command-line tool that allows an administrator to configure firewall rules for a Linux system. The -F option flushes or deletes all the existing rules in the selected chain or in all chains if none is given. It can be used to remove the rules that caused the network to be unresponsive and restore the default firewall behavior.

asked 02/10/2024
Okan YILDIZ
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