Mastering Iptables Firewall

Handling Iptables Firewall in professional Way. All you need to know about Iptables Firewall

What you'll learn
Get in depth knowlegde of Linux Iptables Firewall
Firewall Introduction
Types of Firewall
Direction of Firewall
What can be blocked/permitted ?
Lab Setup Details
Working with INPUT Chain
Working with OUTPUT Chain
Working with FORWARD Chain
How to Block Layer 3 Traffic
How to Block Layer 4 Traffic
How to Block Layer 2 Traffic
Handling ICMP Traffic
Using SNAT
Using DNAT
Setting Default Policy
Directional Filtering
Connection Tracking
Allowing Different Services in Default DROP Policy
Using REJECT Target
Create Custom Chains

Requirements
Basic Linux and Networking Knowledge required
Description
Security is one of the main issue in IT Industry. We want some robust, flexible, affordable and Open Source based security solution. Iptables Firewall satisfy all these requirements. This course will start from basics and will slowly and slowly takes you into depth of Firewall

Firewall is basically a system that prevents unauthorized communication.

- to it (INPUT)

- from it (OUTPUT)

- through it (FORWARD)

The Iptables firewall is open source, low cost (or you can say no cost at all) and highly flexible stateful firewall. To properly understand firewall, we will be discussing several different scenarios. You will be able to appreciate the power of Linux based Iptables firewall after going through different examples.

Who this course is for:
Network Administrators
Security Professionals

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