From 7d74d20651e08e4e10331662afaa688890e63007 Mon Sep 17 00:00:00 2001
From: marchal <me@theomarchal.com>
Date: Sun, 27 Oct 2019 13:14:55 +0100
Subject: [PATCH] cli tool to modify iptables rules with lxc

---
 ipth.sh | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 ipth.sh

diff --git a/ipth.sh b/ipth.sh
new file mode 100644
index 0000000..fe001ae
--- /dev/null
+++ b/ipth.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+# Script to handle iptables rules when working with lxc
+
+show_usage() {
+	echo -e "usage: ./ipth.sh [4/6] [display]"
+	echo -e "usage: ./ipth.sh [4/6] [add/delete] [interface] [container IP] [port]"
+	echo -e "example: ./ipth.sh 4 add eth0 10.10.10.10 80"
+}
+
+if [ "$1" = "4" ]; then
+	program=iptables
+	ip=$4
+elif [ "$1" = "6" ]; then
+	program=ip6tables
+	ip='['"$4"']'
+else
+	show_usage
+	exit 1;
+fi
+
+if [ "$2" = "add" ]; then
+	$program -t nat -A PREROUTING -i $3 -p tcp --dport $5 -j DNAT --to $ip:$5
+elif [[ "$2" = "del" || "$2" = "delete" || "$2" = "remove" ]]; then
+	$program -t nat -D PREROUTING -i $3 -p tcp --dport $5 -j DNAT --to $ip:$5
+elif [[ "$2" = "show" || "$2" = "display" ]]; then
+	$program -t nat -L
+else
+	show_usage
+fi