From 0b9da1996c1387e818bc849838774572da0a5b9b Mon Sep 17 00:00:00 2001
From: Edwin Lyon <53972157+practical-engelbart@users.noreply.github.com>
Date: Mon, 28 Sep 2020 03:45:08 -0700
Subject: [PATCH] Update rules4.conf

---
 iptables/rules4.conf | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/iptables/rules4.conf b/iptables/rules4.conf
index a7ddb38..d953cbc 100644
--- a/iptables/rules4.conf
+++ b/iptables/rules4.conf
@@ -6,20 +6,35 @@
 :FILTERS - [0:0]
 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
 -A INPUT -i lo -j ACCEPT
+-A INPUT -i wg0 -m conntrack --ctstate NEW -p tcp --dport 22 -j ACCEPT
 -A INPUT -p icmp -m icmp --icmp-type 8 -m limit --limit 5/sec -j ACCEPT
 -A INPUT -m conntrack --ctstate INVALID -j DROP
--A INPUT -i wg0 -m conntrack --ctstate NEW -p tcp -m tcp --dport 22 -j ACCEPT
+-A INPUT -i ens3 -m conntrack --ctstate NEW -p tcp -m multiport --dports 80,443,8448 -j ACCEPT
+-A INPUT -i ens3 -m conntrack --ctstate NEW -p udp -m multiport --dports 51820:51821 -j ACCEPT
 -A INPUT -j FILTERS
 -A INPUT -j REJECT
--A DOCKER-USER -i eth0 -j FILTERS
--A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
--A FORWARD -m conntrack --ctstate INVALID -j DROP
--A FORWARD -p icmp -m icmp --icmp-type 8 -m limit --limit 5/sec -j ACCEPT
--A FORWARD -o eth0 -j FILTERS
 -A OUTPUT -o lo -j ACCEPT
--A OUTPUT -o wg-j ACCEPT
--A OUTPUT -o eth0-j ACCEPT
--A FILTERS -m conntrack --ctstate NEW -p tcp -m multiport --dports 25,80,110,143,443,465,587,993,995,4190 -j ACCEPT
--A FILTERS -m conntrack --ctstate NEW -p udp -m multiport --dports 51820:51821 -j ACCEPT
--A FILTERS -j REJECT
+-A OUTPUT -o ens3 -j ACCEPT
+-A DOCKER-USER -i ens3 -j FILTERS
+-A FILTERS -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 25 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 80 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 110 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 143 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 443 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 465 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 587 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 993 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 995 -j ACCEPT
+-A FILTERS -m conntrack --ctstate NEW -p tcp --dport 4190 -j ACCEPT
+-A FILTERS -m conntrack --ctstate INVALID -j DROP
 COMMIT
+
+*nat
+:PREROUTING ACCEPT [0:0]
+:INPUT ACCEPT [0:0]
+:OUTPUT ACCEPT [0:0]
+:POSTROUTING ACCEPT [0:0]
+-A POSTROUTING -o ens3 -j MASQUERADE
+COMMIT
+