How To Build A Network Security Firewall
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1 Ethical Hacking and Countermeasures Version 6 Module LX Firewall Technologies
2 News Source:
3 Module Objective This module will familiarize i you with: Firewalls Hardware Firewalls Software Firewalls Mac OS X Firewall LINUX Firewall Windows Firewall
4 Module Flow Firewalls Mac OS X Firewall Hardware Firewalls LINUX Firewall Software Firewalls Windows Firewall
5 Firewalls: Introduction A firewall is a program or hardware device that protects the resources of a private network from users of other networks It is responsible for the traffic to be allowed to pass, block, or refuse Firewall also works with the proxy server It helps in the protection of the private network from the users of the different network
6 Hardware Firewalls
7 Hardware Firewall Hardware Firewalls are placed in the perimeter of the network It employs a technique of packet filtering It reads the header of a packet to find out the source and destination address The information is then compared with the set of predefined and/or user created rules that determine whether the packet is forwarded or dropped
8 Netgear Firewall Features: Internet t sharing broadband d router and 4-port switch 2x the speed and 4x times the coverage of a Wireless-G router Configurable for private networks and public hotspots Double Firewall protection from external hackers attacks Touchless WiFi Security makes it easy to secure your network
9 Netgear Firewall: Screenshot Wireless Firewall Router WNR 3300 Firewall WNR 824 Firewall WNR 3500 Firewall
10 Personal Firewall Hardware: Linksys Linksys scans the data travelling in the peer to peer network It is also known as Ethernet cable/dsl firewall router The integrated SPI firewall blocks the incoming or outgoing traffic It works on: Filtering traffic from external /internal sources
11 Personal Firewall Hardware: Cisco s s PIX Cisco supports Simple Network Management Protocol (SNMP) traps Cisco firewall series filters the java applets which is a threat to the corporate resources Strong firewall security and proxy authentication functions with NAT and PAT features CISCO PIX Firewall Most valuable feature of Cisco firewall is a Dual NAT
12 Cisco PIX 501 Firewall The Cisco PIX 501 is a compact, ready-to-use security appliance that delivers enterprise-class security for small offices and enterprise teleworker environments It includes an integrated 4-port Fast Ethernet (10/100) switch and a Fast Ethernet (10/100) interface Cisco PIX 501 Series It delivers upto 60 Mbps of firewall throughput, 3 Mbps of Triple Data Encryption Standard (3DES) VPN throughput, and 4.5 Mbps of Advanced Encryption Standard-128 (AES) VPN throughput
13 Cisco PIX 506E Firewall The Cisco PIX 506E is a robust, purpose-built pose security appliance that delivers enterprise-class security for remote and branch office environments It provides two autosensing Fast Ethernet (10/100) interfaces Cisco PIX 506E Series It delivers upto 100 Mbps of firewall throughput, 16 Mbps of Triple Data Encryption Standard (3DES) VPN throughput, and 30 Mbps of Advanced Encryption Standard-128 d (AES) VPN throughput h in a cost-effective, high-performance solution
14 Cisco PIX 515E Firewall The Cisco PIX 515E 55 is a modular,,purpose-built p security appliance that delivers enterprise-class security for small to medium-sized business networks It supports upto six 10/100 Fast Ethernet interfaces, making it an excellent choice for businesses requiring a cost-effective firewall Cisco PIX 515E Series It delivers upto 188 Mbps of firewall throughput with the capability to handle more than 130,000 simultaneous sessions
15 CISCO PIX 525 Firewall The Cisco PIX 525 is a reliable, purpose-built security appliance for medium to large enterprise networks It supports upto eight 10/100 Fast Ethernet interfaces or three Gigabit Ethernet interfaces It delivers more than 330 Mbps of firewall throughput with the capability to handle more than 280,000 simultaneous sessions Cisco PIX 525 Series
16 CISCO PIX 535 Firewall The Cisco PIX 535 is a high-performance, purpose- p built security appliance that delivers enterpriseclass security for enterprise and service provider networks It supports upto ten 10/ Fast Ethernet interfaces or nine Gigabit Ethernet interfaces Cisco PIX 535 Series It delivers upto 1.7 Gbps of firewall throughput with the capability to handle more than 500,000 simultaneous sessions
17 Check Point Firewall Check point firewall enables organizations to protect the entire network infrastructure Different types of Firewall: Firewall-1 Firewall-1 GX
18 Check Point Firewall (cont d) Features of Firewall-1: Comprehensive network and application firewall Using INSPECT, the most adaptive and intelligent inspection technology, FireWall-1 integrates both network and application-layer firewall protection Features of Firewall-1 GX: Protection for GPRS networks Secure connectivity between carriers Auditing and tracking of GPRS traffic
19 Nortel Switched Firewall The key component of Nortel's Layered Defense strategy is Nortel Switched Firewall Supports secure access to organizational resources including SIP, VoIP, and other delay sensitive applications Protects IT data centers, service provider networks, and hosting infrastructures Uses accelerator technology and Check Point Firewall-1 software, in a compact rack-mount package
20 Software Firewalls
21 Software Firewall Software firewall is similar il to a filter It sits between the normal application and the networking components of the operating system Software firewall implants itself in the key area of the application/network path It analyzes what is going against the rule set
22 Windows Firewalls
23 Norton Personal Firewall Norton Personal Firewall automatically blocks intruders and thieves, and it hides your computer from hackers Features: Automatically detects and blocks viruses, spyware, and worms Advanced phishing protection identifies and blocks fraudulent websites Rootkit Protection finds and removes hidden threats in the operating system Smart firewall blocks the hackers and stops spyware from transmitting unauthorized information Intrusion Prevention automatically shields newly discovered security vulnerabilities
24 Norton Personal Firewall: Screenshot Figure: Norton Personal Firewall
25 McAfee Personal Firewall Automatically blocks, cleans, and removes viruses so that you can surf the Web and download files safely Features: Blocks Spyware: Blocks spyware before it is installed in computer and removes existing spyware Stops Hackers: Protects and conceals computer from hackers Improves PC Performance: Cleans clutter off Backs Up & Restores Files: Automated backup and one click restore Secures your Identity: Protects your online identity
26 McAfee Personal Firewall: Screenshot Figure: Personal McAfee Firewall
27 Symantec Enterprise Firewall Symantec Enterprise Firewall gives protection to the assets and data transmission by providing secure connection with the Internet Features: It supports the Advanced Encryption Standard (AES) It supports integrated load balancing that allows scalability to more than 1.5 Gbps It supports URL filtering technology It supports inbound and outbound Network Address Translation (NAT) for both VPN and non-vpn traffic
28 Kerio WinRoute Firewall Kerio WinRoute Firewall is a corporate gateway firewall for small and medium-sized i d businesses This firewall sets new standards in versatility, security, and user access control It defends against external attacks and viruses and can restrict access to websites based on their content Features: Anti-virus Gateway Protection Content Filtering User Specific Access Management Fast Internet Sharing Internet Monitoring
29 Kerio WinRoute Firewall: Screenshot 1
30 Kerio WinRoute Firewall: Screenshot 2
31 Sunbelt Personal Firewall The Personal Firewall controls how computers share information through h the Internet t or a local l network It protects computers from external or internal attacks by other computers Mostly used in laptops since they are easier to compromise because of the increasing popularity of built-in in wireless access Features: Controls all the traffic on the network Creates a separate log for firewall modules Automatically update the newer version of the software
32 Sunbelt Personal Firewall: Screenshot
33 Xeon Firewall Xeon Personal Firewall scans all your ports to detect possible hacker attempts t on your system, and will identify the hacker and his/her location
34 Xeon Firewall: Screenshot
35 InJoy Firewall The InJoy Firewall is a firewall security solution for organizations of all sizes Features: Deep Packet Inspection Unique MULTI-PLATFORM support IPSec VPN support Stateful Inspection Dynamic Firewall Rules Access Control Packet Filtering Traffic Accounting Traffic Shaping Bandwidth Management Saf (secure ) Web Filtering
36 InJoy Firewall: Screenshot
37 PC Tools Firewall Plus PC Tools Firewall Plus is a free personal firewall for Windows that protects your computer by preventing unauthorized users from gaining access to your computer through the Internet or a network Features: Protects PC when users are working, surfing, and playing Intelligent automatic protection without all the questions Advanced rules to protect your PC against common attacks
38 PC Tools Firewall Plus: Screenshot
39 Comodo Personal Firewall Comodo Personal Firewall protects the system from Hackers, Spyware, Trojans, and Identity theft Features: Clean PC Mode Advanced Network Firewall Engine Host Intrusion Prevention System Powerful and intuitive Security Rules Interface Automatic 'Firewall Training' mode Windows Security Center Integration Self Protection against Critical Process Termination
40 Comodo Personal Firewall: Screenshot
41 ZoneAlarm ZoneAlarm is designed to protect your DSL- or cable- connected PC from hackers The firewall controls the door to your computer and allows traffic that you understand and initiate
42 ZoneAlarm: Screenshot
43 Linux Firewalls
44 KMyFirewall KMyFirewall attempts to make it easier to setup IPTables based firewalls on Linux systems The firewall has the ability to save entire rulesets Firewall You only have to configure your ruleset one time, and then you can use it on several computers giving each of them a similar configuration
45 KMyFirewall: Screenshot
46 Firestarter Firestarter is an Open Source visual firewall program The software serves both Linux desktop users and system administrators Features: Real-time firewall event monitor shows intrusion attempts as they happen Allows you to define both inbound and outbound access policy Option to whitelist or blacklist traffic
47 Firestarter: Screenshot
48 Guarddog Guarddog is a firewall configuration utility for Linux systems Features: Supports router configurations Firewall scripts can be imported/exported to be used on machines other than the current one Hosts/networks can be divided into zones It reduces the chances of configuration mistakes being made which are a prime source of security holes
49 Guarddog: Screenshot
50 Firewall Builder Firewall Builder is multi-platform firewall configuration and management tool Firewall Builder currently supports iptables, ipfilter, and OpenBSD PF as well as Cisco PIX and Cisco IOS extended access lists Firewall Builder can generate configuration file for any supported target firewall platform from the same policy created in its GUI
51 Firewall Builder: Screenshot
52 Mac OS X Firewalls
53 Flying Buttress Advanced firewall configuration, logging, and IP sharing options are found in Flying Buttress Features: Includes qualifiers on host or network addresses Operates on protocols other than TCP or UDP protocols NAT port forwarding or other custom NAT configuration Ability to switch between different firewall configuration sets quickly and easily
54 Flying Buttress: Screenshot
55 DoorStop X Firewall Protects your Mac from outside attack, including specific Leopard protection Features: All TCP services are protected by default Ability to tune protection ti on a service-by-service i and address-by-address basis Protects services by name or port number Four protection modes: deny all, allow all, allow by address, and deny by address Setup assistant to help you best secure your Mac's services
56 DoorStop X Firewall: Screenshot
57 Intego NetBarrier X5 Intego NetBarrier X5 is the Internet security solution for Macintosh computers running Mac OS X It offers thorough protection against intrusions coming across the Internet or a local network NetBarrier X5 has four lines of defense to protect your Mac and data from intrusions and attacks Personal firewall Antivandal Pi Privacy protection ti Monitoring
58 Intego NetBarrier X5: Screenshot
59 Little Snitch Little Snitch provides flexible configuration options, allowing you to grant specific permissions to your trusted applications or to prevent others from establishing particular Internet connections Little Snitch introduces a new network monitor, showing detailed information of all incoming and outgoing network traffic Little Snitch allows you to intercept unwanted connection attempts, and lets you decide how to proceed
60 Little Snitch: Screenshot
61 Summary Firewall is a program which is placed at the network s gateway server Linksys scans the data travelling in the peer to peer network Cisco firewall series allows filtering the java applets which is a threat to the corporate resources Intego NetBarrier X5 is the Internet security solution for Macintosh computers running Mac OS X Guarddog is a firewall configuration utility for Linux systems Firewall Builder is a multi-platform l firewall configuration i and management tool
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