Overview
This lab is part of a series of lab exercises intended to support courseware for Ethical Hacker training. The development of this document is funded by the Department of Labor (DOL) Trade Adjustment Assistance Community College and Career Training (TAACCCT) Grant No. TC-22525-11-60-A-48.
In this lab, students will install and configure a Linux Firewall.
OUTCOMES
In this lab, you will learn to:
- Install the Firewall and Configuring the VPN Server
- Configure the VPN Server and Clients
- Use Internal Services from an External Machine
Key terms and descriptions
PPTP
Point to Point tunneling protocol is an older VPN technology that allows remote users to connect to a company’s VPN server and access internal resources.
L2TP
Layer 2 tunneling protocol is a VPN technology that uses IPsec and allows remote users to connect to a company’s VPN server and access internal resources.
VPN
Most firewalls can be configured to allow incoming traffic on their external interfaces to be redirected to internal hosts.
NAT
Network Address Translation will allow internal hosts to reach the external network through a single IP Address. Most firewalls can be configured to perform NAT.
IPsec
IPsec is a technology that encrypts IP packets so they are not sent in the clear. Layer 2 tunneling protocol is a VPN technology that uses IPsec.