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DESCRIPTION
Fortinet - World No.1 UTM
Citation preview
FortiGate Multi-Threat Security Systems Administration, Content Inspection and Basic VPN
Prerequisites
• Introductory-level network security experience• Basic understanding of core network security and firewall
concepts
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 1Overview and System Setup
Unified Threat Management
• One device Firewall, intrusion protection, antivirus and more
• Centralized management
Page: 7
Fortinet Solution
• FortiGate platform• FortiGuard Subscription Services• Management, reporting, analysis products
Page: 8
FortiGate
• Application-level services Antivirus, intrusion protection, antispam, web content filtering
• Network-level services Firewall, IPSec and SSL VPN, traffic shaping
• Management, reporting, analysis products Authentication, logging, reporting, secure administration, SNMP
Page: 8
FortiGate Portfolio
• SOHO FortiGate 30B, 50B, 51B, 60B, 100A, 110C, 111C Protect smaller deployments
• Medium-Sized Enterprises FortiGate 200A, 224B, 300A, 400A, 500A, 800 Meet demands of mission critical enterprise applications
• Large-Sized Enterprises and Carriers FortiGate 1000A, 3016B, 3600A, 3810A, 5020, 5050, 5140 High performance and reliability
Page: 9-10
FortiGuard
• Dynamic updates Antivirus, intrusion protection, web filtering, antispam
• Updated 24x7x365• Data centers around the world
Secure, high availability locations
Page: 10
FortiManager
• Manage all Fortinet products from a centralized console• Minimize administration effort
Deploying, configuring and maintaining devices
Page: 10
FortiAnalyzer
• Centralized analysis and reporting Aggregate and analyze log data from multiple devices
• Comprehensive view of network usage Identify and address vulnerabilities Monitor compliance
• Quarantine and content archiving
Page: 10
FortiMail
• Multi-layered email security Advanced spam filtering, antivirus
• Facilitate regulatory compliance
Page: 11
FortiClient
• Security for desktops, laptops, mobile devices Personal firewall, IPSec VPN, antivirus, antispam, web content
filtering
• FortiGuard keeps FortiClient up-to-date
Page: 11
Firewall Basics
• Controls flow of traffic between networks of different trust level
• Allow good information through but block intrusions, unauthorized users or malicious traffic
• Rules to allow or deny traffic
Page: 12
Firewall Basics
Internet
Trusted corporate networkUntrusted network
Firewall
Page: 12
Common Firewall Features
• Block unwanted incoming traffic• Block prohibited outgoing traffic• Block traffic based on content• Allow connections to an internal network• Reporting• Authentication
Page: 13
Types of Firewalls
• Packet filter firewall Inspects incoming and outgoing packets If matches rules, perform action
• Stateful firewall Examines headers and content of packet Holds attributes of connection in memory Packet forwarded if connection already established and tracked
• Improved performance
• Application layer (proxy-based) firewall Stands between protected and unprotected network Repackages messages into new packets allowed into network
Page: 14
Network Address Translation
• Map private reserved IP addresses into public IP addresses Local network uses different set of addresses
• NAT device routes response to proper destination• Single agent between public and private network• Conserve IP addresses
One public address used to represent group of computers
• Organization uses own internal IP addressing schemes
Page: 16
Dynamic NAT
• Private IP address mapped from a pool of public IP addresses
• Masks internal network configuration• Private network can use private IP addresses invalid on
Internet but useful internally
Page: 16
Static NAT
• Private IP address mapped to a public IP addresses Public address always the same
• Allow internal host to have a private IP address but still be reachable over the Internet Web server
Page: 16
FortiGate Capabilities
• Firewall Policies to allow or deny traffic
• UTM Features: Antivirus
• Multiple techniques
Antispam• Detect, tag, block, and quarantine spam
Web Filtering• Control access to inappropriate web content
Intrusion Protection• Identify and record suspicious traffic
Page: 17
FortiGate Capabilities
• UTM Features (continued): Application Control
• Manage bandwidth use
Data Leak Prevention• Prevents transmission of sensitive information
Page: 17-18
FortiGate Capabilities
• Virtual Domains Single FortiGate functions as multiple units
• Traffic Shaping Control available bandwidth and priority of traffic
• Secure VPN Ensure confidentiality and integrity of transmitted data
• WAN Optimization Improve performance and security
• High Availability Two or more FortiGates operate as a cluster
Page: 18-19
FortiGate Capabilities
• Endpoint Compliance Use FortiClient End Point Security in network
• Logging Historical and current analysis of network usage
• User Authentication Control access to resources
Page: 18-19
FortiGate Unit Description
• CPU Intel processor
• FortiASIC processor Offload intensive processing
• DRAM• Flash memory
Store firmware images
• Hard drive Logs, quarantine, archives
• Interfaces WAN, DMZ, Internal
Page: 20
FortiGate Unit Description
• Serial console port Management access
• USB port USB drives or modem
• Wireless FortiWifi devices can use wireless communications
• Modem• Module slot bays
Blade card installed in a chassis
• PC card slot PCMCIA card slot for expansion
Page: 20-21
FortiGate Front View (51B)
Page: 22
FortiGate Back View (51B)
Page: 23
Operating Modes
• NAT/Route Mode Default configuration Each FortiGate unit is visible to network it is connected to Interfaces are on different subnets Unit functions as a firewall
Page: 24
Operating Modes – NAT/Route
Internet
Router
WAN1204.23.1.5
Internal192.168.1.99
DMZ10.10.10.1
10.10.10.2
192.168.1.3
NAT mode policies control traffic between internal and external networks.
Routing policies control traffic between internal
networks.
Page: 24
Operating Modes
• Transparent Mode FortiGate unit is invisible to the network All interfaces are on the same subnet Use FortiGate without altering IP infrastructure
Page: 25
Operating Modes – Transparent
Internet
Router
10.10.10.2
10.10.10.3
204.23.1.5
Gateway to public network
WAN1
InternalHub or switch
Page: 25
Device Administration
• Web Config Configure and monitor device through web browser
• CLI Command line interface
Page: 26
Web Config
Page: 26
Web Config Menu
Page: 28
System Information
Page: 29
License Information
Page: 29
CLI Console
Page: 29
System Resources
Page: 30
Unit Operation
Page: 30
Alert Message Console
Page: 30
Top Sessions
Page: 31
Top Viruses
Page: 31
Top Attacks
Page: 32
Traffic History
Page: 32
Statistics
Page: 33
Online Help
Page: 34-35
Topology Viewer
Page: 36
Command Line Interface (CLI)
Page: 37
CLI Command Structure
• Commands config
• Objects config system
• Branches config system interface
• Tables edit port1
• Parameters set ip 172.20.110.251 255.255.255.0
Page: 38-44
CLI Basics
• Command help ? config ? config system ?
• Command completion ? or <tab> c? config + <space> + <tab>
• Recalling commands or
Page: 45
CLI Basics
• Editing commands <CTRL> + <key>
• Line continuation use \ at end of each line
• Command abbreviation get system status g sy st
• IP address formats 192.168.1.1 255.255.255.0 192.168.1.1/24
Page: 46
Administrative Users
• Responsible for configuration and operation• Default: admin
Full read/write control Can not be renamed Default password blank
• System administrator Assigned super_admin profile
• Regular administrator Access profile other than super_admin Access configurable
Page: 47
Interface Addressing
• Number of physical interfaces varies per model• Interface addresses configurable
Static DHCP PPPoE
Page: 48-51
DNS
• Some functions use DNS Alert email, URL blocking, etc
• Lower end models can retrieve automatically One interface must use DHCP Can provide DNS forwarding
Page: 52
Configuration Backup and Restore
• Different locations Local PC FortiManager FortiGuard Management Service USB disk
• Can be encrypted Required to backup VPN certificates
Page: 53
Firmware Upgrades
• File must be obtained from Fortinet• Apply upgrade
Web Config CLI FortiGuard Management Service
Page: 54
Lab
• Connecting to Command Line Interface• Connecting to Web Config• Configuring Network Connectivity• Exploring the CLI• Configuring Global System Settings• Configuring Administrative Users
Page: 55
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 2FortiGuard Subscription Services
FortiGuard Subscription Services
• Continuously updated security Antivirus Intrusion Protection Web Filtering Antispam
• Delivered through FortiGuard Distribution Network
Page: 75
FortiGuard Distribution Network
• Secure, high availability data centers• Updated methods
Manual Push Pull Customized frequency
• Devices continuously updated• Device connects to FortiGuard Service Point
Page: 75-76
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Serversservice.fortiguard.net
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
Page: 77
Connecting to FortiGuard Servers
DNS
FortiGuard Server 1
FortiGuard Server 2
FortiGate
service.fortiguard.net
Page: 77
FortiGuard Antivirus Service
• Latest virus defenses New and evolving viruses Spyware Malware
• Automated updates
Page: 78
FortiGuard Intrusion Protection System Service
• Latest defenses against network-level threats• Library of signatures• Engines
Anomaly inspection Deep packet inspection Full content inspection Activity inspection
• Supports behavior-based heuristics
Page: 79
FortiGuard Web Filtering Service
• Hosted web URL filtering service• FortiGuard Rating Server
Billions of web page addresses Regulate and block harmful, inappropriate and dangerous content
• FortiGuard Web Filtering Service Regulate web activities to meet policy and compliance CIPA Compliance
Page: 80
FortiGuard Antispam Service
• Reduce spam at network perimeter• Global filters
Sender reputation database (FortiIP) Spam signature database (FortiSig) Constantly updated
• Local filters Banned words Local white and black lists Heuristic rules Bayesian training (in FortiMail)
Page: 81-82
FortiGuard Subscription Service Licensing
Page: 83
Scheduled Updates
• Check for updates at defined times Once every 1 to 23 hours Once a day Once a week
• Must be able to connect to FortiGuard Distribution Network using HTTPS on port 443 Use override server address option may be used
Page: 84
Push Updates
• FortiGuard Distribution Network notifies FortiGate units with push enabled FortiGate will request update
• Use push in addition to scheduled updates Receive updates sooner
• If configuring push through a NAT device, configure port forwarding
Page: 85-87
Manual Updates
• Update antivirus and IPS definitions• Download definition file• Copy to computer used to connect to Web Config
Page: 88
Caching
• Available for web filtering and antispam• Improves performance• Uses small % of system memory• Least recently used IP or URL deleted when cache full• Time to Live (TTL) controls time in cache
Page: 89
FortiGuard Web Filtering Categories
• Wide range of categories to filter upon Specify action for each category Allow, Block, Log, Allow Override
• Enabled through protection profile
Page: 90-91
FortiGuard Antispam Controls
• Filter email based on type IMAP, POP3, SMTP
• Filtering options enabled through protection profile
Page: 92
Configuring FortiGuard Using the CLI
• CLI can be used to configure communications with FortiGuard Distribution Network Override default connection settings
• config system fortiguard
Page: 93
FortiGuard Center
• Online knowledge base and resource Spyware, virus, IPS, web filtering, antispam attack library Vulnerabilities Submit spam and dangerous URLs
• Timely threat and vulnerability information Updated around the clock
Page: 94-95
Lab
• Enabling FortiGuard Services and Updates
Page: 96
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 3Logging and Alerts
Logging and Alerts
• Track down and pinpoint problems• Monitor network and Internet traffic• Monitor normal traffic
Establish baselines Identify changes for optimal performance
Page: 101
Log Storage Locations
• Local hard disk FortiGate must have hard disk
• FortiAnalyzer Device for log collection, analysis and storage
• System Memory Overwrites older logs when capacity reached Logs lost when FortiGate reset or loses power
• Syslog Forward logs to remote computer
• FortiGuard Analysis Service Subscription-based web service
Page: 101-105
Logging Levels• Emergency
System unstable• Alert
Immediate action required• Critical
Functionality affected• Error
Error condition exists, functionality could be affected• Warning
Functionality could be affected• Notification
Normal event• Information
General info about system operations• Debug
Primarily used as a support function
Page: 106-107
Log Types
• Traffic Traffic between source and destination interface Only generated when session table entry expires
• Event Management activity
• AntiVirus Virus incidents
• Web Filter Web content blocking actions
• Attack Attacks detected and blocked
Page: 108
Log Types
• AntiSpam Records detected spam
• Data Leak Prevention Records data that matches pre-defined sensitive patterns
• Application Control IM/P2P
• Records IM and P2P information
VoIP• Logs SCCP violations
Content• Logs metadata
Page: 108-109
Configuring Logging
• Select location and level• Enable log generation
Protection profile• Antivirus, web filtering, FortiGuard web filtering, spam filtering, IPS,
IM/P2P and VoIP
Event log• Management, system and VPN activities
Firewall policy• Log Allowed Traffic
Page: 110-114
Viewing Log Files
• Log&Report > Log Access• Remote or Memory tabs
Local Disk if available
• Formatted or Raw view• Select columns to display• Filter messages
Page: 115-118
Content Archiving
• Store session transaction data HTTP FTP NNTP IM (AIM, ICQ, MSN, Yahoo!) Email (POP3, IMAP, SMTP)
• Only available with FortiAnalyzer unit• Summary
Archives content metadata
• Full Copies of files or email messages
Page: 119-121
Alert Email
• Send notification upon detection of a defined event• Requires one DNS server configured• Up to 3 recipients
Page: 122
SNMP
• Report system information and forward to SNMP manager• Access SNMP traps from any FortiGate configured for SNMP• Read-only implementation• Fortinet-proprietary MIB available
Or use Fortinet-supported standard MIB
• Add SNMP Communities 8 SNMP managers per community
Page: 123-126
Lab
• Exploring Web Config Monitoring• Configuring System Event Logging• Exploring the FortiAnalyzer Interface• Configuring Email Alerts• SNMP Setup (Optional)
Page: 127
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 4Firewall Policies
Firewall Policies
• Control traffic passing through FortiGate What to do with connection request?
• Packet analyzed, content compared to policy ACCEPT DENY
• Source, destination and service must match policy Policy directs action
• Protection profile used with policy Apply protection settings
• Logging enabled to view connections using policy
Page: 137
Policy Matching
• Searches policy list for matching policy Based on source and destination
• Starts at top of the list and searches down for match First match is applied Arrange policies from more specific to more general
• Policies configured separately for each virtual domain• Move policies in list to influence order evaluated
Page: 138-141
User Authentication to Firewall Policies
• User challenged to identify themselves before using policy Before matching policies not requiring authentication
• Available for policies with: Action set to ACCEPT SSL VPN
• Authentication methods Username + Password Digital certificates LDAP RADIUS TACACS+ Active Directory
• FSAE required
Page: 142
Authentication Protocols
• Protocol used to issue authentication challenge specified• Firewall policy must include protocol
HTTP HTTPS Telnet FTP
Page: 142
Creating Policies
• Source and destination address• Schedule• Service• Action• NAT• Options
Protection profile Logging Authentication Traffic shaping Disclaimers
Page: 143
Firewall Addresses
• Added to source and destination address Match source and destination IP address of packets received
• Default of ALL Represents any IP address on the network
• Address configured with name, IP address and mask Also use FQDN Must be unique name
• Groups can be used to simplify policy creation and management
Page: 144-148
Firewall Schedules
• Control when policies are active or inactive• One-time schedule
Activate or deactivate for a specified period of time
• Recurring schedule Activate or deactivate at specified times of the day or week
Page: 149-150
Firewall Services
• Determine types of communications accepted or denied• Predefined services applied to policy
Custom service if not on predefined list
• Group services to simplify policy creation and management
Page: 151-153
Network Address Translation (NAT)
• Translate source address and port of packets accepted by policy
Page: 154
Network Address Translation (NAT)
Page: 154
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Network Address Translation (NAT)
Page: 154
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Firewall Policy with NAT enabledwan1 IP: 192.168.2.2
Network Address Translation (NAT)
Page: 154
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Firewall Policy with NAT enabledwan1 IP: 192.168.2.2
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Network Address Translation (NAT)
Page: 154
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Firewall Policy with NAT enabledwan1 IP: 192.168.2.2
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 192.168.2.2
Source Port: 30912Destination IP:
172.16.1.1Destination Port: 80
Network Address Translation (NAT)
Page: 154
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Firewall Policy with NAT enabledwan1 IP: 192.168.2.2
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 192.168.2.2
Source Port: 30912Destination IP:
172.16.1.1Destination Port: 80
Original New
Dynamic IP Pool
• Translate source address to an IP address randomly selected from addresses in IP pool
Page: 155
Dynamic IP Pool
Page: 155
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Dynamic IP Pool
Page: 155
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool
IP Pool wan1: 172.16.12.12-172.16.12.12
Dynamic IP Pool
Page: 155
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool
IP Pool wan1: 172.16.12.12-172.16.12.12
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Dynamic IP Pool
Page: 155
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool
IP Pool wan1: 172.16.12.12-172.16.12.12
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 172.16.12.12
Source Port: 30957Destination IP:
172.16.1.1Destination Port: 80
Dynamic IP Pool
Page: 155
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool
IP Pool wan1: 172.16.12.12-172.16.12.12
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 172.16.12.12
Source Port: 30957Destination IP:
172.16.1.1Destination Port: 80
Original New
Fixed Port
• Prevent NAT from translating the source port Some applications do not function correctly if source port translated
• If Dynamic Pool not enabled, policy with Fixed Port can only allow one connection to that service at a time
Page: 156
Fixed Port
Page: 156
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1
Fixed Port
Page: 156
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool + Fixed Port
IP Pool wan1: 172.16.12.12-172.16.12.12
Fixed Port
Page: 156
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool + Fixed Port
IP Pool wan1: 172.16.12.12-172.16.12.12
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Fixed Port
Page: 156
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool + Fixed Port
IP Pool wan1: 172.16.12.12-172.16.12.12
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 172.16.12.12
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Fixed Port
Page: 156
internal wan1
10.10.10.1
Internet
Client FortiGate Server
172.16.1.1Firewall Policy with NAT + IP Pool + Fixed Port
IP Pool wan1: 172.16.12.12-172.16.12.12
Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 172.16.12.12
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Original New
Virtual IPs
• Allow connections using NAT firewall policies• Addresses in packets are remapped and forwarded
Client address does not appear in packet server receives
• Upon reply, session table used to determine what destination address should be mapped to
Page: 157-158
DNAT
• NAT not selected in firewall policy Policy performs destination network address translation (DNAT)
• Accepts packet from external network intended for specific address, translates destination address to IP on another network
Page: 159
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy withDestination Address VIP
VIP, Static NATInterface Wan1
Address 172.16.1.1 192.168.1.100
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy withDestination Address VIP
VIP, Static NATInterface Wan1
Address 172.16.1.1 192.168.1.100Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy withDestination Address VIP
VIP, Static NATInterface Wan1
Address 172.16.1.1 192.168.1.100Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 172.16.12.12
Source Port: 1025Destination IP: 192.168.1.100
Destination Port: 80
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy withDestination Address VIP
VIP, Static NATInterface Wan1
Address 172.16.1.1 192.168.1.100Source IP: 10.10.10.1
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Original New
Source IP: 172.16.12.12
Source Port: 1025Destination IP: 192.168.1.100
Destination Port: 80
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy with NAT
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy with NAT
Source IP: 192.168.1.100
Source Port: 1025Destination IP:
10.10.10.2Destination Port: 80
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy with NAT
Source IP: 192.168.1.100
Source Port: 1025Destination IP:
10.10.10.2Destination Port: 80
Source IP: 172.16.1.1.
Source Port: 1025Destination IP:
10.10.10.2Destination Port: 80
DNAT
Page: 159
wan1 dmz
10.10.10.1
192.168.1.100
10.10.10.2
Internet
Client
Server
Server
Firewall Policy with NAT
Source IP: 192.168.1.100
Source Port: 1025Destination IP:
10.10.10.2Destination Port: 80
Source IP: 172.16.1.1.
Source Port: 1025Destination IP:
10.10.10.2Destination Port: 80
OriginalNew
Server Load Balancing
• Dynamic one-to-many NAT mapping• External IP address translated to a mapped IP address
Determine by load balancing algorithm
• External IP address not always translated to same mapped IP address
Page: 160
Server Load Balancing
Page: 160
wan1 dmz
10.10.10.1
Client
FortiGate
Server
10.10.10.2
Client
10.10.10.3
Client
Internet Internet Internet
Server Server
Server Load Balancing
Page: 160
wan1 dmz
10.10.10.1
Client
FortiGate
Server
10.10.10.2
Client
10.10.10.3
Client
Internet Internet Internet
Server Server
Firewall Policy withDestination Address VIP
VIP, ServerLBInterface Wan1
Address 172.16.1.1 192.168.1.100 192.168.1.101 192.168.1.200
Server Load Balancing
Page: 160
wan1 dmz
10.10.10.1
Client
FortiGate
Server
10.10.10.2
Client
10.10.10.3
Client
Internet Internet Internet
Server Server
Firewall Policy withDestination Address VIP
VIP, ServerLBInterface Wan1
Address 172.16.1.1 192.168.1.100 192.168.1.101 192.168.1.200
Source IP: 10.10.10.3
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Server Load Balancing
Page: 160
wan1 dmz
10.10.10.1
Client
FortiGate
Server
10.10.10.2
Client
10.10.10.3
Client
Internet Internet Internet
Server Server
Firewall Policy withDestination Address VIP
VIP, ServerLBInterface Wan1
Address 172.16.1.1 192.168.1.100 192.168.1.101 192.168.1.200
Source IP: 10.10.10.3
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Server Load Balancing
Page: 160
wan1 dmz
10.10.10.1
Client
FortiGate
Server
10.10.10.2
Client
10.10.10.3
Client
Internet Internet Internet
Server Server
Firewall Policy withDestination Address VIP
VIP, ServerLBInterface Wan1
Address 172.16.1.1 192.168.1.100 192.168.1.101 192.168.1.200
Source IP: 10.10.10.3
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 10.10.10.3
Source Port: 1025Destination IP: 192.168.1.200
Destination Port: 80
Server Load Balancing
Page: 160
wan1 dmz
10.10.10.1
Client
FortiGate
Server
10.10.10.2
Client
10.10.10.3
Client
Internet Internet Internet
Server Server
Firewall Policy withDestination Address VIP
VIP, ServerLBInterface Wan1
Address 172.16.1.1 192.168.1.100 192.168.1.101 192.168.1.200
Source IP: 10.10.10.3
Source Port: 1025Destination IP:
172.16.1.1Destination Port: 80
Source IP: 10.10.10.3
Source Port: 1025Destination IP: 192.168.1.200
Destination Port: 80
Original New
Protection Profiles
• Control all content filtering• Group of protection settings applied to traffic
Types and levels of protection customized for each policy
• Enables settings for: Protocol Recognition Anti-Virus IPS Web Filtering Spam Filtering Data Leak Prevention Sensor Application Control Logging
Page: 161
Default Protection Profiles
• Strict Maximum protection
• Scan Applies virus scanning to HTTP, FTP, IMAP, POP3, SMTP
• Web Applies virus scanning and web content blocking to HTTP
• Unfiltered No scanning, blocking or IPS
Page: 162-172
Traffic Shaping
• Control bandwidth available to traffic processed by firewall policy Which policies have higher priority?
• Improve quality of bandwidth-intensive traffic Does NOT increase total bandwidth available
Page: 173
Token Bucket Filter
• Dampening function Delays traffic by buffering bursts Does not schedule traffic
• Configured rate is never exceeded
Page: 174
Token Bucket Filter Mechanism
• Bucket has specified capacity Tokens added to bucket at mean rate
• If bucket fills, new tokens discarded• Bucket requests number of tokens equal to packet size• If not enough tokens in bucket, packet buffered• Flow will never send packets more quickly than capacity of
the bucket• Overall transmission rate does not exceed rate tokens placed
in bucket
Page: 175
Token Bucket Filter Mechanism
Page: 175
Destination Network
FortiGate unit
End users
Token bucket
Regulator
Buffer
Token Bucket Filter Mechanism
Page: 175
Destination Network
FortiGate unit
End users
Token bucket
Regulator
Data packets
Buffer
Token Bucket Filter Mechanism
Page: 175
Destination Network
FortiGate unit
End users
Token bucket
Regulator
Data packets
Tokens
Buffer
Token Bucket Filter Mechanism
Page: 175
Destination Network
FortiGate unit
End users
Token bucket
Regulator
Data packets
Tokens
Buffer
Token Bucket Filter Mechanism
Page: 175
Destination Network
FortiGate unit
End users
Token bucket
Regulator
Data packets
Tokens
Buffer
Token Bucket Filter Mechanism
Page: 175
Destination Network
FortiGate unit
End users
Token bucket
Regulator
Data packets
Tokens
Buffer
Traffic Shaping Considerations
• Attempt to normalize traffic peaks Prioritize certain flows over others
• Physical limitation to how much data can be buffered Packets may be dropped, sessions affected
• Performance on one traffic flow may be sacrificed to guarantee performance on another
• Not effective in high-traffic situations Where traffic exceeds FortiGate unit’s capacity Packets must be received for being subject to shaping
• If shaping not applied to policy, default is high priority
Page: 176-177
Disclaimers
• Accept disclaimer before connecting• Use with authentication or protection profile• Can redirect to a URL after authentication
Page: 178
Lab
• Creating Firewall Policy Objects• Configuring Firewall Policies• Testing Firewall Policies• Configuring Virtual IP Access• Debug Flow
Page: 179
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 5Basic VPN
Virtual Private Networks (VPN)
• Use public network to provide access to private network• Confidentiality and integrity of data• Authentication, encryption and restricted access
Page: 195
FortiGate VPN
• Secure Socket Layer (SSL) VPN Access through web browser
• Point-to-Point Tunneling Protocol (PPTP) Windows standard
• Internet Protocol Security (IPSec) VPN Dedicated VPN software required Well suited for legacy applications (not web-based)
Page: 195-196
SSL VPN Operating Modes
• Web-only mode Web browser only Secure connection between browser and FortiGate unit FortiGate acts as gateway
• Authenticates users
• Tunnel mode VPN software downloaded as ActiveX control FortiGate unit assigns client IP address from range of reserved
addresses
Page: 197-199
User Accounts
• Must have user account assigned to SSL VPN user group• Users must authenticate
Username + Password RADIUS TACACS+ LDAP Digital certificates
• User group provides access to firewall policy• Split tunneling available
Only traffic destined for tunnel routed over VPN
Page: 200-202
Web-Only Configuration
• Enable SSL VPN• Create user accounts
Assign to user group
• Create firewall policy• Setup logging (optional)
Page: 204
Tunnel Mode Configuration
• Enable SSL VPN• Specify tunnel IP range• Create user group• Create firewall policy
Page: 205
SSL VPN Settings
• Tunnel IP Range Reserve range of IPs for SSL VPN clients
• Server Certificate, Require Client Certificate Certificates must be installed
• Encryption Key Algorithm• Idle Time-out• Client Authentication Time-Out
CLI only
• Portal Message• Advanced
DNS and WINS Servers
Page: 206-208
Firewall Policies
• At least one SSL VPN firewall policy required• Specify originating IP address• Specify IP address of intended recipient or network• Configuration steps:
Specify source and destination IP address Specify level of encryption Specify authentication method Bind user group to policy
Page: 209
Firewall Addresses
• Web-only mode Predefined source address of ALL Destination IP address where remote client needs to access
• Entire private network, range of private IPs, private IP of host
• Tunnel model Source is range of IP addresses that can be connected to FortiGate
• Restrict who can access FortiGate
Destination IP address where remote client needs to access• Entire private network, range of private IPs, private IP of host
Page: 209
Configuring Web-Only Firewall Policies
• Specify destination IP address Name Type Subnet/IP range Interface
• Define policy Action: SSL-VPN Add user group
Page: 210-212
Configuring Tunnel-Mode Firewall Policies
• Specify source IP addresses Addresses that can connect to FortiGate
• Specify destination IP address Addresses clients need to access
• Specify level of encryption• Specify authentication type• Bind user group to policy• ssl.root
Page: 213-218
SSL VPN Bookmarks
• Hyperlinks to frequently accessed applications Web-only mode
• FortiGate forwards connection request to servers• VPN > SSL > Portal
Page: 219-221
Connecting to the SSL VPN
• https://<FortiGate_IP_address>:10443 Port customizable
• SSL-VPN Web Portal page displayed Bookmarks
• What appears is pre-determined by administrator’s settings in User > User Group and VPN > SSL > Portal > Settings
Page: 222
Connecting to the SSL VPN
Page: 222
Connecting to the SSL VPN
PPTP VPN
• Point-to-Point (PPP) authentication protocol PPP software operates on tunneled links
• Encapsulates PPP packets within IP packets Not cryptographically protected
• PPTP packets not authenticated or integrity protected• FortiGate unit assigns client IP address from reserved range
Assigned IP used for duration of connection
• FortiGate unit disassembles PPTP packet and forwards to correct computer on internal network
Page: 223
PPTP VPN
• FortiGate unit can act as PPTP server• FortiGate unit can forward PPTP packets to PPTP server
Page: 224
FortiGate Unit as PPTP Server
Page: 224
Internet
PPTP Clients Internal Network
FortiGate
FortiGate Unit Forwards Traffic to PPTP Server
Page: 225
Internet
PPTP Clients Internal Network
FortiGatePPTP Server
PPTP Server Configuration
• Configure user authentication for PPTP clients• Enable PPTP on FortiGate unit• Configure PPTP server• Configure client
Page: 226
PPTP Pass-Through Configuration
• Configuration required to forward PPTP packets to PPTP server
• Define virtual IP that points to PPTP server• Configure firewall policy• Configure client
Page: 227
IPSec VPN
• Industry standard set of protocols• Layer 3
Applications do not need to be designed to use IPSec
• IP packets encapsulated with IPSec packets Header of new packet refers to end point of tunnel
• Phase 1 Establish connection Authenticate VPN peer
• Phase 2 Establish tunnel
Page: 228
IPSec Protocols
• Authentication Header (AH) Authenticate identity of sender Integrity of data Entire packet signed
• Encapsulating Security Payload (ESP) Encrypts data Signs data only
Page: 229
Authentication Header (AH)
Page: 229
Original IP Header
Authentication Header
DataTCP Header
Authenticated
Encapsulating Security Payload (ESP)
Page: 229
New IP Header
ESP Header
Original IP Header
TCP Header DataESP
Trailer
ESP Authentication
Trailer
Encrypted
Authenticated
Modes of Operation
• Tunnel mode Entire IP packet encrypted and/or authenticated Packet then encapsulated for routing
• Transport mode Only data in packet encrypted and/or authenticated Header not modified or encrypted
Page: 230
Security Association (SA)
• Defines bundle of algorithms and parameters Encrypt and authenticate one-directional data flow
• Agreement between two computers about the data exchanged and protected
Page: 230
Internet Key Exchange (IKE)
• Allows two parties to setup SAs Secret keys
• Uses Internet Security Association Key Management Protocol (ISAKMP) Framework for establishing SAs
• Two distinct phases Phase 1 Phase 2
Page: 231
Phase 1
• Authenticate computer involved in transaction• Negotiate SA policy between computers• Perform Diffie-Hellman key exchange• Set up secure tunnel• Main mode (three exchanges)
Algorithms used agreed upon Generate secret keys and nonces Other side’s identity verified
• Aggressive mode (one exchange) Everything needed to complete exchange
Page: 231
Phase 2
• Negotiate SA parameters to set up secure tunnel• Renegotiate SAs regularly
Page: 232
Gateway-to-Gateway Configuration
• Tunnel between two separate private networks• All traffic encrypted by firewall policies• FortiGate units at both ends must be in NAT/Route mode
Page: 234
Gateway-to-Gateway Configuration
Page: 234
Internet
Site 1
FortiGate 1
Site 2
FortiGate 2
Gateway-to-Gateway Configuration
• FortiGate receives connection request from remote peer Uses IPSec phase 1 parameters
• Establish secure connection• Authenticate peer
• If policy permits, tunnel established Uses IPSec phase 2 parameters Applies policy
• Configuration steps Define phase 1 parameters Define phase 2 parameters Create firewall policies
Page: 234
Defining Phase 1 Parameters
Page: 235-236
Authenticating the FortiGate Unit
• Authenticate itself to remote peers• Pre-shared key
All peers must use same key
• Digital certificates Must be installed on peer and FortiGate
Page: 237-238
Authenticating Remote Clients
• Permit access using trusted certificates FortiGate configured for certificate authentication
• Permit access using peer identifier• Permit access using pre-shared key
Each peer or client must have user account
• Permit access using peer identifier and pre-shared key Each peer or client must have user account
Page: 239
XAuth Authentication
• Separate exchange at end of phase 1 Increased security
• Draws on existing FortiGate user group definitions• FortiGate can be XAuth server or XAuth client
Page: 239
IKE Negotiation Parameters
Page: 240-242
Defining Phase 2 Parameters
Page: 243-246
Firewall Policies
• Policies needed to control services and direction of traffic• Firewall addresses needed for each private network• Policy-Based VPN
Specify interface to private network, remote peer and VPN tunnel Single policy for inbound, outbound or both direction
• Route-Based VPN Requires ACCEPT policy for each direction Creates Virtual IPSec interface on interface connecting to remote
peer
Page: 247-250
Lab
• Configuring SSL VPN for Full Access (Web Portal and Tunnel Mode)
• Configuring a Basic Gateway-to-Gateway VPN
Page: 251
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 6Authentication
Authentication
• User or administrator prompted to identify themselves Only allowed individuals perform actions
• Can be configured for: Any firewall policy with action of ACCEPT PPTP and L2TP VPNs Dial-up IPSEC VPN set up as XAuth server Dial-up VPN accepting user group as peer ID
Page: 263
Authentication Methods
• Local user User names and passwords used to authenticate stored on
FortiGate
• Remote Use existing systems to authenticate
• RADIUS• LDAP• PKI• Windows Active Directory• TACACS+
Page: 264-265
Users and User Groups
• Authentication based on user groups User created User added to groups
• User Account created on FortiGate or external authentication server
• User group Users or servers as members Specify allowed groups for each resource requiring authentication Group associated with protection profile
Page: 266-267
User Group Types
• Firewall Access to firewall policy that requires authentication FortiGate request user name and password (or certificate)
• Directory Service Allow access to users in DS groups already authenticated
• Single sign on
Requires FSAE
• SSL VPN Access to firewall policy that requires SSL VPN authentication
Page: 268-270
Authentication overrides
• Require access to blocked site Override block for period of time
• Link to authenticate presented
Page: 271
Authentication Settings
Page: 272
PKI Authentication
• Valid certificate required• SSL used for secure connection• Trusted certificates installed on FortiGate and client
Page: 273
RADIUS Authentication
• User credentials sent to RADIUS server for authentication• Shared key used to encrypt data exchanged• Primary and secondary servers identified on FortiGate unit
Page: 274
LDAP Authentication
• User credentials sent to LDAP server for authentication• LDAP servers details identified on FortiGate
Page: 275
TACACS+ Authentication
• User credentials sent to TACACS+ server for authentication• Choice of authentication types:
Auto ASCII PAP CHAP MSCHAP
Page: 276
Microsoft Active Directory Authentication
• Transparently authenticate users Fortinet Server Authentication Extensions (FSAE) passes
authentication information to FortiGate Sign in once to Windows, no authentication prompts from FortiGate
Page: 277
FSAE Components
• Domain Controller Agent Installed on every domain controller Monitors user logons, sends to Collector Agent
• Collector Agent Installed on at least one domain controller Sends information collected to FortiGate
Page: 278
FSAE Configuration on Microsoft AD
• Configure Microsoft AD user groups All members of a group have same access level FSAE only send Domain Local Security Group and Global Security
Group to FortiGate
• Configure Collector Agent settings Domain controllers to monitor
• Global Ignore list Exclude system accounts
• Group filters Control logon information sent to FortiGate
Page: 279-280
FSAE Configuration on FortiGate
• Configure Collector Agents FortiGate to access at least one collector agent Up to five can be listed
• Configure user groups AD groups added to FortiGate user groups
• Configure firewall policy• Allow guests
Users not listed in AD Protection profile for FSAE firewall police
Page: 281
Labs
• Firewall Policy Authentication• Adding User Disclaimers and Redirecting URLs
Page: 282
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 7Antivirus
Antivirus
• Detect and eliminate viruses, worms and spyware• Scan HTTP and FTP traffic• Scan SMTP, POP3, IMAP
Page: 289
Antivirus Elements
• File filter File pattern and file type recognition
• Virus scan Virus definitions kept up-to-date through FortiGuard Subscription
Services
• Grayware• Heuristics
Detect virus-like behavior
Page: 289-290
File Filter
• File pattern Name, extension or pattern Built-in patterns or custom
• File type Analyze file to determine type Types pre-configured
• Actions Allow Block
• Replacement message sent
Page: 291
Enabling File Filtering
Page: 292
File Name Pattern Filtering
Page: 295
File Type Filtering
Page: 296
File Pattern Filtering
Page: 297
Virus Scan
• Virus definitions used to detect and eliminate threats Updated regularly FortiGuard Subscription Services license required
Page: 298
Updating Antivirus Definitions
Page: 299
Grayware
• Unsolicited commercial software Often installed without consent
• Scans for grayware in enabled categories Categories and content updated regularly
Page: 300
Grayware Categories
• Adware Pop-up advertising content
• Browser Helper Objects Add capabilities to browser
• Dialers Unwanted calls through modem or Internet connection
• Downloaders Retrieve files
• Games• Hacker Tools
Subvert network and host security
Page: 301-303
Grayware Categories
• Hijackers Manipulate settings
• Jokes• Key loggers
Log input for later retrieval
• Misc Uncategorized (multiple functionalities)
• NMT (Network Management Tool) Cause network disruption
• P2P File exchanges containing viruses
Page: 301-303
Grayware Categories
• Plugins Add additional features to an existing application
• Remote Administration Tools (RAT) Remotely change or monitor a computer on a network
• Toolbars Augment capabilities of browser
Page: 301-303
Spyware
• Component of adware Track user activities online Report activities to central server Target advertising based on online habits
Page: 304-305
Quarantine
• Quarantine blocked or infected files FortiGate unit with hard drive FortiAnalyzer
• Files uploaded to Fortinet for analysis
Page: 306-307
Proxies
• Intercepts all connection requests and responses• Buffers and scans response before flushing to client• Splicing
Prevent client from timing out Server sends part of response to client while buffering Final part sent if response is clean FTP uploads, email protocols (SMTP, POP3, IMAP)
• Client comforting Prevent timeout while files buffered and scanned by FortiGate Can provide visual status to user that progress being made HTTP and FTP downloads
Page: 308
Scanning Options
Page: 309-310
Lab
• Configuring Global Antivirus Settings• Configuring a Protection Profile• Testing Protection Profile Settings for HTTP/FTP Antivirus
Scanning
Page: 311
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 8Spam Filtering
Spam Filtering
• Manage unsolicited bulk email Detect spam messages Identify transmissions from known/suspected spam servers
Page: 321
Spam Filtering Methods
• IP address check Verify source IP address again list of known spammers
• URL check Extract URLs and verify against list of spam sources
• Email checksum check Calculate checksum of message and verify against list of known
spam messages
• Spam submission Inform FortiGuard
• Black/White list Check incoming IP and email addresses against known list SMTP only
Page: 322-323
Spam Filtering Methods
• HELO DNS lookup Check source domain name against registered IP address in DNS
• Return email DNS check Check incoming return address domain against registered IP in
DNS
• Banned word Check email against banned word list
• MIME headers check Check MIME headers against list
• DNSBL and ORDBL Check email against configured servers
Page: 322-323
FortiGuard Antispam Global Filters
• FortiIP sender IP reputation database Reputation of IP based on properties related to address
• Email volume from a sender Compare sender’s recent volume with historical pattern
• FortiSig Spam signature database FortiSig1
• Spamvertised URLs FortiSig2
• Spamvertised email addresses FortiSig3
• Spam checksums
• FortiRule Heuristic rules FortiMail only
Page: 324-325
Customized Filters
• Compliment FortiGuard• Banned word lists• Local black/white list• Heuristic rules• Bayesian
FortiMail only
Page: 325
Enabling Antispam
Page: 326
Spam Actions
• Tag or discard spam email Add custom text to subject or instead MIME header and value
• Only discard if SMTP and virus check enabled• Spam actions logged
Page: 327
Banned Word
• Block messages containing specific words or patterns Values assigned to matches If threshold exceeded, messages marked as spam
• Perl regular expressions and wildcards can be used
Page: 328-334
Black/White List
• IP address filtering Compare IP address of sender to IP address list If match, action is taken
• Email address filtering Compare email address of sender to email address list If match, action is taken
Page: 335
Configuring IP Address List
Page: 336-338
Configuring Email Address List
Page: 339-342
MIME Headers Check
• MIME headers added to email Describe content type and encoding
• Malformed headers can fool spam or virus filters• Compare MIME header key-value of incoming email to list
If match, action is taken
Page: 343
DNSBL and ORDBL
• Published lists of suspected spammers• Add subscribed servers
Define action
Page: 344
FortiMail Antispam
• Enhanced set of features for detecting and blocking spam Some techniques not available in FortiGate
• Stand-alone antispam system Can be second layer in addition to FortiGate
• Legacy virus protection• Email quarantine
Page: 345
Agenda
• Introduction• Overview and System Setup• FortiGuard Subscription Services• Logging and Alerts• Firewall Policies• Basic VPN• Authentication• Antivirus• Spam Filtering• Web Filtering
Lesson 9Web Filtering
Web Filtering
• Process web content to block inappropriate or malicious content
• Categorized content 76 categories 40 million domains Billions of web pages Automated updates
• Check web addresses against list• Customizable
Page: 349
Order of Filtering
• URL Filtering Exempt, Block, Allow
• FortiGuard Web Filtering• Content Exempt
Customizable
• Content Block Customizable
• Script Filter
Page: 349
Web Content Block
• Block specific words or patterns Score assigned to pattern Page blocked if greater than threshold Perl regular expressions or wildcards can be used
Page: 350-353
Web Content Block
Page: 352
Web Content Exemption
• Override web content block Even if banned words appear
Page: 354-357
Web Content Exemption
Page: 356
Enabling Web Filtering
Page: 358
URL Filter
• Block specific pages Displays replacement message
• Text, regular expressions and wildcards can be used
Page: 359-362
URL Filter
Page: 361
FortiGuard Web Filter
• Managed web filtering solution Web pages rated and categorized
• Determines category of site Follows firewall policy
• Allow, block, log, or override• Ratings based on:
Text analysis Exploitation of web structure Human raters
Page: 363
Web Filtering Categories
• Categories based on suitability for enterprises, schools, and home Potentially liable Controversial Potentially non-productive Potentially bandwidth consuming Potential security risks General interest Business oriented Others
Page: 364
Web Filtering Classes
• Classify web page based on media type or source Further refine web access Prevent finding material
• Classes Cached contents Image search Audio search Video search Multimedia search Spam URL Unclassified
Page: 365
Enabling FortiGuard Web Filtering
Page: 366
Enabling FortiGuard Web Filtering Options
Page: 367-368
Web Filtering Overrides
• Give user ability to override firewall filter block Administrative overrides User overrides
• Override permissions configured at user group level or with override rules
• User group level overrides Group of users have same level of overrides Assumes authentication enabled on policy
• Override rules Fine granularity Access domain, directory or category
Page: 369
Allowing Override at User Group Level
Page: 370
Configuring Override Rules (Directory or Domain)
Page: 371-372
Configuring Override Rules (Category)
Page: 373
Web Filtering Override Page
Page: 375
Web Filtering Authentication Page
Page: 375
Local Ratings
• Administrator controlled block of web sites• Per protection profile basis
Page: 376
Local Categories
• Administrator controlled block on group of web sites• Per protection profile basis
Page: 377
Thank you for attending
.