Add share_internet script

network/share_internet.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+if [ "`id -u`" -ne 0 ]; then
+	echo "Need to be root."
+	exit
+fi
+
+DINET=`ip link | sed -n 's/.*\(wlp[^:]\+\).*/\1/p' | head -n1`
+DETH=`ip link | sed -n 's/.*\(enp[^:]\+\).*/\1/p' | head -n1`
+
+echo -n "Internet on [$DINET]: "
+read TEMP
+if [ "$TEMP" != "" ]; then
+	DINET="$TEMP"
+fi
+
+echo -n "Forward to [$DETH]: "
+read TEMP
+if [ "$TEMP" != "" ]; then
+	DETH="$TEMP"
+fi
+
+echo ""
+echo "Forwarding internet from $DINET to $DETH."
+
+exit
+
+sysctl net.ipv4.ip_forward=1
+
+iptables -t nat -A POSTROUTING -o $DINET -j MASQUERADE
+iptables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
+iptables -A FORWARD -i $DETH -o $DINET -j ACCEPT