COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This command clears firewall rules.
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sudo iptables-c
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sudo iptables-F
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sudo iptables-x
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sudo iptables-a
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Explanation:
Detailed explanation-1: -The-D argument used with iptables deletes a specific rule. The-F option removes all rules in the chain. Use one of the methods to delete rules based on specifications, chains, or numbers, or to flush the entire chain.
Detailed explanation-2: -To flush all chains, which will delete all of the firewall rules, you may use the-F, or the equivalent–flush, option by itself: sudo iptables-F.
Detailed explanation-3: -sudo : It stands for “super user do!” as a Linux system administrator or power user, it’s one of the most important commands. iptables : Is used to set up, maintain, and inspect the tables of IP packet filter rules in the Linux kernel.
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