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Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

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#!/bin/sh
curl -s https://api.github.com/users/<username>/keys | jq -r ".[].key" > ~/.ssh/authorized_keys_github

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#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
import sys
import json
import logging
import httplib
import argparse

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usage: bind_upload.py [-h] --key <key> --name <name> --zone <zone>

Selectel domains-api bind-zone import helper

optional arguments:
  -h, --help     show this help message and exit

required named arguments:
  --key <key>    Your API Key
  --name <name>  Domain name for creation

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#!/usr/bin/env python

import pcap
import socket

from scapy.all import *
conf.use_pcap=True # because by default scapy try to use raw socket and can't assign bpf filter
conf.verb=0        # it just grab all traffic and get error on processing
import scapy.arch.pcapdnet

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---

- name: install HWE Stack on Ubuntu 12.04
  hosts: all
  user: someuser
  sudo: yes

  tasks:
    - name: Install linux-hwe-generic package
      apt: