added iptables samples

iptables/limit.sh

@@ -0,0 +1,10 @@
+#! /bin/bash
+
+IPTABLES="sudo /sbin/iptables"
+
+$IPTABLES --new-chain RATE-LIMIT
+$IPTABLES --append INPUT --match conntrack --ctstate NEW --jump RATE-LIMIT
+$IPTABLES --append RATE-LIMIT --match limit --limit 5/sec --limit-burst 20 --jump ACCEPT #5 packages per second
+$IPTABLES --append RATE-LIMIT --jump DROP
+
+echo "iptables input chain is now rate limiting"

iptables/rate-limit.sh

@@ -1,4 +0,0 @@
-# @Author: Anton Bracke <anton>
-# @Date:   2019-05-03T00:05:51+02:00
-# @Last modified by:   anton
-# @Last modified time: 2019-05-03T00:05:51+02:00

iptables/reset.sh

@@ -1,4 +1,15 @@
-# @Author: Anton Bracke <anton>
+#! /bin/bash
-# @Date:   2019-05-03T00:05:40+02:00
+
-# @Last modified by:   anton
+IPTABLES="sudo /sbin/iptables"
-# @Last modified time: 2019-05-03T00:05:40+02:00
+
+$IPTABLES -F
+$IPTABLES -X
+$IPTABLES -t nat -F
+$IPTABLES -t nat -X
+$IPTABLES -t mangle -F
+$IPTABLES -t mangle -X
+$IPTABLES -P INPUT ACCEPT
+$IPTABLES -P FORWARD ACCEPT
+$IPTABLES -P OUTPUT ACCEPT
+
+echo "iptables reseted"