LPI
303-300 · Question #107
303-300 Question #107: Real Exam Question with Answer & Explanation
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Network Security
Question
What does the following iptables rule accomplish: iptables -A INPUT -s !127.0.0.0/8 -p tcp -dport 111 -j DROP
Options
- ADrops all packets from the LAN destined for port 111.
- BDrops all packets originating from the local machine unless they are destined for port 111.
- CDrops all packets destined for port 111 which originate from the local machine.
- DDrops all packets destined for port 111 unless they are from the local machine.
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Topics
#iptables#firewall rules#packet filtering#negation logic