LPI
117-202 · Question #49
117-202 Question #49: Real Exam Question with Answer & Explanation
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Question
A server is being used as a smurf amplifier, whereby it is responding to ICMP Echo-Request packets sent to its broadcast address. To disable this, which command needs to be run?
Options
- Aifconfig eth0 nobroadcast
- Becho "0" > /proc/sys/net/ipv4/icmp_echo_accept_broadcasts
- Ciptables -A INPUT -p icmp -j REJECT
- Decho "1" > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
- Eecho "1" > /proc/sys/net/ipv4/icmp_echo_nosmurf
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