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RedHat EX200 Exam - Topic 1 Question 23 Discussion

Your System is going use as a router for 172.24.0.0/16 and 172.25.0.0/16. Enable the IP Forwarding.1. echo "1" >/proc/sys/net/ipv4/ip_forward2. vi /etc/sysctl.conf net.ipv4.ip_forward=1
A) /proc is the virtual filesystem, containing the information about the running kernel. To change the parameter of running kernel you should modify on /proc. From Next reboot the system, kernel will take the value from /etc/sysctl.conf.
B) /proc is the virtual filesystem, containing the information about the running kernel. To change the parameter of running kernel you should modify on /proc.

RedHat EX200 Exam - Topic 1 Question 23 Discussion

Actual exam question for RedHat's EX200 exam
Question #: 23
Topic #: 1
[All EX200 Questions]

Your System is going use as a router for 172.24.0.0/16 and 172.25.0.0/16. Enable the IP Forwarding.

1. echo "1" >/proc/sys/net/ipv4/ip_forward

2. vi /etc/sysctl.conf net.ipv4.ip_forward=1

Show Suggested Answer Hide Answer
Suggested Answer: A

by Jaclyn at May 08, 2022, 12:59 PM

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Lonna
10 months ago
Just to clarify, you need to reboot for /etc/sysctl.conf to take effect, right?
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Malcom
10 months ago
I thought /etc/sysctl.conf was the way to go for persistent changes.
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Marge
11 months ago
Wait, does modifying /proc really change it permanently?
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Vallie
11 months ago
Totally agree, that's how it works!
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Herminia
11 months ago
/proc is indeed the virtual filesystem for kernel info.
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Hillary
11 months ago
I vaguely recall that /etc/sysctl.conf is the way to make changes permanent, but I can't remember the exact syntax we used.
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Bernardo
11 months ago
I think we practiced something similar in class, where we had to enable IP forwarding for a lab setup.
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Erick
11 months ago
I remember that modifying /proc is for immediate changes, but I'm not sure if it persists after a reboot.
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Ezekiel
11 months ago
I feel like both options mention /proc correctly, but I’m a bit confused about which one emphasizes the reboot aspect better.
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Val
11 months ago
I'm pretty confident that the Cisco vEdge platform supports IPv6 transport (WAN), so I'll go with option A.
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Edmond
11 months ago
Hmm, I'm a bit confused about the difference between these two estimation methods. I'll need to think this through carefully.
upvoted 0 times
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