Create simplefirewall.sh

simplefirewall/simplefirewall.sh

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+#!/bin/bash
+
+# Define the ports you want to block
+PORTS=("80" "8080" "8088" "443") # Default ports, will be modified by the install script
+
+# Block specified ports on all interfaces except bridge0, eth0, and tailscale0
+for port in "${PORTS[@]}"; do
+    iptables -A INPUT -i bridge0 -p tcp --dport $port -j ACCEPT
+    iptables -A INPUT -i eth0 -p tcp --dport $port -j ACCEPT
+    iptables -A INPUT -i tailscale0 -p tcp --dport $port -j ACCEPT
+    iptables -A INPUT -p tcp --dport $port -j DROP
+done