Transcript SMOOTHWALL FIREWALL SYSTEM

SMOOTHWALL
FIREWALL
By
Nitheish Kumarr
INTRODUCTION
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Smooth wall Express is a Linux based firewall
produced by the Smooth wall Open Source
Project Team.
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Smooth wall is configured via a web-based GUI,
and requires little or no knowledge of Linux to
install or use.
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Their goal was to create a Linux distribution that
could convert a redundant PC into a hardened
internet firewall device.
GOALS

Be simple enough to be installed by users with no
knowledge of Linux.
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Use sponsorship from Smooth Wall Limited to
further these goals .
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Run efficiently on older, cheaper hardware.
OBJECTIVE
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Protect the network with open source software
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Maintenance can be done only at the firewall
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Can controls internet security
SCOPE
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In this project, focus on the firewall internet
blocking system by using a redundant pc .
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This system will be managed by network
administrator.
THE JUSTIFICATION / ADVANTAGES OF THIS PROJECT

It is a special responsibility to protect students from
web-borne threats and to promote safe internet
use.
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It control connectivity to these areas, an
organization can prevent unauthorized access to
its systems and resources using ids system.
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This system require a low specification pc
Hardware
The requirements for this system are Pentium-class Intelcompatible PC running at 200 MHz with at least 32MB and
512MB of disk space.
Networking
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Need at least 2 network cards (NICs) for your Smooth wall
machine.
Software
There are many types of firewall software, smooth wall firewall
can be adapted in any environment
It control the flow of network traffic between networks or hosts
for security postures.
TECHNIQUES USED IN SMOOTHWALL
i)
HIGH PERFORMANCE NETWORK SECURITY
ii)
EXTERNAL ATTACK DEFENSE
iii)
LOAD BALANCING
Installation
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An Redundant Pc with Low requirements
An 8 port Switch for interconnecting the Pc
Needed at least 2 network cards (NICs) in the
Smooth wall machine.
Internet Connection so that the Smooth wall can
be used to guard from the Gate of Network.
Smoothwall installation
Read the following information carefully and hit
enter:
Click OK
Click OK.
In this step Smoothwall will partition the hard disk.
Select “No” and press Enter to start configuring your
installation of Smoothwall Express. The Keyboard
mapping dialog box opens first:
Click OK. Leave the default settings.
It is time to configure the hostname. Leave the
default settings:
Select the Half-open
Select Network configuration
Select the “GREEN+RED” configuration:
Configuring the both network cards.
Use static IP addresses for both interfaces.
Click Static. Please setup the DHCP hostname and
Settings accordingly:
Please setup the DNS and Default Gateway
accordingly.
Hit Finished to continue.
Enter Smoothwall admin password. You’ll need it for
logging into the web interface later.
Setup the root password next.
The setup is now complete.
Monitoring

Smooth wall can be best managed by using its
Web based GUI by connecting to it from another
local computer on the network.

Maintenance can be done only at the firewall.
Upgrading Network
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Plan a logical network design
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Design and install a new network or upgrading an
existing network.
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Gather information about several important
factors before beginning the logical design.
Network Implementation of Smooth wall Firewall
Project.

Block Website using Smooth wall URL Filter
-URL filter is an add-on module for Linux based
firewall distributions. Smooth wall, extending their
functionality with the ability to block unwanted
domains, URLs and files.
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STEP 1: Open the web browser. Type the Smooth
wall web address: 192.168.1.1:441/, then log in to
the Smooth wall Express 3.0 system.
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STEP 2: After logging into the system, Smooth wall
home will appear.
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STEP 3: Go to Services, then click url filter.
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STEP 4: As you can see, there are some services
available in URL filter. Block categories will block
the selected categories.
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STEP 5: Now you have to enter the website that
you want block. First type the web name in
custom blacklist such as “Facebook”. Then type
full web address of the URLs like
http://www.facebook.com in blocked URLs.
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STEP 6: Type in the Message line for block the
website. The message will appear when block the
websites.
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STEP 7: The final steps is to save all your settings for
block the website. First you must click save and
then click save and restart.
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STEP 8: Finally, results of blocking the specific
websites.
I) Facebook
II) Twitter
III) YouTube
Method Testing
A testing method is a definitive procedure of testing
every section that produces test results.
Unit Testing
Testing of individual hardware or software units or
groups of related units of devices that going to be
used for this project. The unit/device testing is TP-LINK
10/100 Mbbps PCI Network Adapter.
Testing on Machine
i. Test the user's computer to ping the server IP
address using command prompt to check the
internet connection.
ii. Test the firewall whether it can control all the client
pc’s.
iii. Test the firewall whether it can block certain
websites.
Network Testing
i) Check the cable whether the modem is
connected with the client pc
ii) Try to ping server IP address using command
prompt.
iii) If it is working, the firewall can control the client
pc’s.
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Problems /Weakness network
i)
The Smooth wall network needs two
network cards.
ii)
For Smooth wall network, needs an internet
connection.
Problems and Proposed Solution
i) Select a Proper Network Design accordingly to the
Network to be implemented
ii) Prepare a Machine with Low requirements to be
setup with Smoothwall and with an Internet
Connection to be used.
Results and Achievement
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Able to block certain websites
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The achievements of this project is the procedure
to setup and monitoring a Smooth wall firewall
achieved in a small LAN network
The End