Update iptables.sh

added archlinux support

scripts/subinstallers/iptables.sh

@@ -118,10 +118,18 @@ else
 fi
 
 # IP forwarding
-sudo sed -i 's/.*net.ipv4.ip_forward.*/net.ipv4.ip_forward=1/' /etc/sysctl.conf
-sudo sysctl -p /etc/sysctl.conf
+if [ "$DISTRO" == "ubuntu" ] || [ "$DISTRO" == "debian" ] || [ "$DISTRO" == "raspbian" ] ; then
+    sudo sed -i 's/.*net.ipv4.ip_forward.*/net.ipv4.ip_forward=1/' /etc/sysctl.conf
+    sudo sysctl -p /etc/sysctl.conf
+elif [ "$DISTRO" == "arch" ]; then
+    sudo echo "net.ipv4.ip_forward=1" > /etc/sysctl.d/30-ipforward.conf 
+    sudo sysctl -p /etc/sysctl.d/30-ipforward.conf
+fi
 
 # rsyslog to create /var/log/iptables.log
-sudo cp ./scripts/conf/15-iptables.conf /etc/rsyslog.d/
-sudo chown root:root /etc/rsyslog.d/15-iptables.conf
-sudo systemctl restart rsyslog
+if [ "$DISTRO" == "ubuntu" ] || [ "$DISTRO" == "debian" ] || [ "$DISTRO" == "raspbian" ] ; then
+    sudo cp ./scripts/conf/15-iptables.conf /etc/rsyslog.d/
+    sudo chown root:root /etc/rsyslog.d/15-iptables.conf
+    sudo systemctl restart rsyslog
+fi
+## implement archlinux alternativ