Security Solutions: Firewall Fundamentals (TryHackMe)

In this article, I will write a write-up for Firewall Fundamentals that covers What is the Purpose of a Firewall, Types of Firewalls, Rules in Firewalls, Windows Defender Firewall, and Linux iptables Firewall.

1. Which security solution inspects the incoming and outgoing traffic of a device or a network? Firewall

2. Which type of firewall maintains the state of connections? Stateful Firewall

3. Which type of firewall offers heuristic analysis for the traffic? next-generation firewall

4. Which type of firewall inspects the traffic coming to an application? proxy firewall

5. Which type of action should be defined in a rule to permit any traffic? allow

6. What is the direction of the rule that is created for the traffic leaving our network? outbound

7. What is the name of the rule that was created to block all incoming traffic on the SSH port? Core Op

   

8. A rule was created to allow SSH from one single IP address. What is the rule name? Infra team

   

9. Which IP address is allowed under this rule? 192.168.13.7

   

10. Which Linux firewall utility is considered to be the successor of "iptables"? nftables

11. What rule would you issue with ufw to deny all outgoing traffic from your machine as a default policy? (answer without sudo) ufw default deny outgoing

    

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