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→Part 1: Replacing firewalld with iptables
# Check the status of the iptables service. It should tell you it's '''active'''.
# View your current iptables firewall rules: <code>iptables -nvL --line-numbers</code>
# Refer to ''Figure 1''. If your rules at this stage look different, stop and contact your professor for help.(Packet and byte count numbers will be unique.)
# Set iptables to start with the system: <code>systemctl enable iptables</code>
# Remove ''firewalld'' completely: <code>yum autoremove firewalld</code> '''Note:''' If you don't remove firewalld and both firewalls are set to start with the system, firewalld will always start instead of iptables. This can lead to much frustration. Make sure you remove it!