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IPTables Inbound Rule

In our previous IPTables firewall series article, we reviewed how to add firewall rule using "iptables -A". We also explained how to allow incoming SSH connection. On a high-level, it involves following 3 steps. Delete all existing rules: "iptables -F" Allow only incoming SSH: "iptables -A INPUT -i eth0 -p tcp --dport 22 -j ACCEPT" [...]

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