CEH v9 Question of the Week: iptables

You have just been hired as an apprentice Security Engineer. Your manager asks you to take a look at iptables on a specific device.

You quickly remember that iptables are:

 A. Part of Cisco routing tables
B. A command line linux based firewall
C. Define the subnet the network device is located on
D. CIDR notation for DHCP

Reveal Answer

The correct answer is B.

iptables is a command-line firewall utility that uses policy chains to allow or block traffic. When a connection tries to establish itself on your system, iptables looks for a rule in its list to match it to. If it doesn’t find one, it resorts to the default action.

 

 

Related Course
Certified Ethical Hacker v9

CEH v9 Question of the Week Series

• CEH v9 Question of the Week: Retina Scanners
• CEH v9 Question of the Week: Employee Behavior
• CEH v9 Question of the Week: CVE-2007-2447
• CEH v9 Question of the Week: SQL Injection
• CEH v9 Question of the Week: Web Application Penetration Testing
• CEH v9 Question of the Week: iptables

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