what is firewall
TRANSCRIPT
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Linux Firewall Server(IPCOP)
GROUP MEMBERS
FIRDAUS BIN FADHIL(52208109074)
ABDUL HALIM BIN DIN (52208109019)
NETWORK OPERATING SYSTEM 1
INB 23303
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What is Firewall?
A set of programs residing on a "gatewayserver" that protect the resources of an internalnetworkA network device or an host that connect 2 or
more networksA device able to monitor each packet to
determine whether to forward it toward itsdestination
A device able to evaluates packets with theobjective toControl, Modify and Filter networktraffic
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What is IPCop
GNU/GPL project that offers an
exceptional feature packed stand alone
firewall to the internet community.
It goes far beyond a simple ipchains /
netfilter implementation available in most
Linux distributions and even the firewall
feature sets of commercial competitors.
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Building Your IPCop, What you need
386 Processor with 32MB RAM, 300MB
hard disk and 3 Network Cards
2 x 5 port 10/100/1000 switch or a Layer 3
switch
Network Cables
Burned ISO CD
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Example of IPCop Network
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Installing IPCop
Select your language.
Select your Installation Medium, a CD in thiscase.
Configure your network cards The fastestway to configure your network interface cardsis by selecting Probe option. If you know thenetwork card information you can choose to
your exact interface from Select.
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Installing IPCop
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Next, when you are asked enter your Green Interface anaddress which must be within your chosen addressspace (192.168.1.x in our example). Enter in place192.168.1.1 in the IP address field.
Green Interface
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Preparing the Hardisk
Following this, IPCop will format and copy itself to your hard drive. See below.
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After the install has completed you will be
prompted to reboot and run setup as shown.
Reboot & Run Configuration
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Initial setup. Having installed IPCop we now have toenter some further configuration information in setupfor our setup to be complete.Enter in Keyboard, Time Zone and
Hostname/Domain.ISDN Setup As you are not using ISDN you should
select to disable itNetwork Configuration Type - Select the Interface
configuration you will be running by tabbing to
Network Configuration Type and hit the Enter key.
Network Configuration Menu
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Network Configuration Menu
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Network Configuration Type
In our case you would select Red /
Orange / Green.
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Since we have 3 interfaces and only have set up Green,repeat the interface setup options for the Red andOrange interfaces as described above.
Configure the RED interface to use DHCP as this is
interface connected to the Internet (i.e. Your ISP).Then configure your ORANGE interface to use the
192.168.10.x address space. For Red tab over to theDHCP box and select it by hitting Enter.
So if your Green network will contain 15 hosts you canuse 192.168.1.2-16. To set this up simply add in thisrange 192.168.1.2-16 and tab down to OK.
Red Interface
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Red Interface
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Password Setup
Password Setup - IPCop has 2 users
which you will be asked to setup
passwords for the root and admin.
Root password will be used to log on and
add any add-ons or upgrades via SSH.
Admin user is used to manage your IPCop
day to day.
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End of Installation
At the end of the IPCop installation you will be asked toreboot. After reboot go to another machine on your LANand force your network interface card to update your dynamic (DHCP) address with ifconfig (Linux/Unix) or
ipconfig (Windows) Verify you are live and active on the new network you
have setup with an address on 192.168.1.x. With thisvalidated connect to secure https web interface of IPCop.
Type https://192.168.1.1:445 or https://192.168.1.1:81and log in as the admin user.
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Summary
This Presentation give us information how
to install Firewall Server on Linux, also the
way how to secure our network from
outside or inside thread.
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Reference
http://blogs.tankersleywebsolutions.com
http://freedommafia.net
Mark Grennan - Firewall and Proxy Server Howto
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Thank You