RedHat EX200 Exam - Topic 5 Question 125 Discussion

Actual exam question for RedHat's EX200 exam

Question #: 125
Topic #: 5

The firewall must be open.

AExplanation:
/etc/init.d/iptables start
iptables -F
iptables -X
iptables -Z
/etc/init.d/iptables save
chkconfig iptables on

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Suggested Answer: A

by Nelida at Apr 12, 2026, 04:42 PM

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18 days ago

Totally agree, firewalls are crucial for security!

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23 days ago

Just a reminder, you need root access to run those commands.

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1 month ago

I vaguely remember that we need to ensure the firewall is active, but I'm not confident about the exact steps to take.

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1 month ago

I feel like I might have mixed up the commands for saving the iptables configuration. Does anyone recall if "chkconfig iptables on" is necessary?

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2 months ago

I think I practiced a similar question where we had to flush the rules first. Is that what "iptables -F" does?

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2 months ago

I remember something about starting iptables, but I'm not sure if I need to use all those commands in that order.

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