Fortinet IPS - Manual

Fortinet IPS

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Table of Contents:

  • Page 3 – Contents
  • Page 5 – Introduction; The FortiGate IPS
  • Page 6 – About this document; Document conventions; Typographic conventions; Fortinet documentation
  • Page 8 – Fortinet Knowledge Center; Customer service and technical support
  • Page 9 – IPS settings and controls
  • Page 10 – When to use IPS; Network performance; Default signature and anomaly settings
  • Page 11 – Controlling sessions; Setting the buffer size; Monitoring the network and dealing with attacks; Configuring logging and alert email
  • Page 12 – Attack log messages
  • Page 13 – Anomaly
  • Page 14 – Using IPS sensors in a protection profile; Creating a protection profile that uses IPS sensors; Adding protection profiles to firewall policies
  • Page 15 – Adding protection profiles to user groups
  • Page 17 – Predefined signatures; IPS predefined signatures; Viewing the predefined signature list
  • Page 21 – Custom signatures; IPS custom signatures
  • Page 22 – Custom signature configuration; Adding custom signatures using the web-based manager; Adding custom signatures using the CLI
  • Page 23 – Creating custom signatures; Custom signature fields
  • Page 24 – Custom signature syntax
  • Page 33 – Example custom signatures
  • Page 35 – Example 2: signature to block the SMTP ‘vrfy’ command
  • Page 37 – Protocol decoders; Upgrading the IPS protocol decoder list
  • Page 38 – Viewing the protocol decoder list
  • Page 39 – IPS sensors; Viewing the IPS sensor list
  • Page 40 – Adding an IPS sensor; Configuring IPS sensors
  • Page 42 – Configuring filters
  • Page 43 – Configuring pre-defined and custom overrides
  • Page 45 – DoS sensors
  • Page 46 – Viewing the DoS sensor list; Configuring DoS sensors
  • Page 48 – Understanding the anomalies
  • Page 51 – SYN flood attacks; What is a SYN flood attack?
  • Page 52 – The FortiGate IPS Response to SYN flood attacks; What is SYN threshold?
  • Page 54 – Configuring SYN flood protection; Suggested settings for different network conditions
  • Page 55 – ICMP sweep attacks; What is an ICMP sweep?
  • Page 56 – Predefined ICMP signatures
  • Page 57 – ICMP sweep anomalies
  • Page 58 – Configuring ICMP sweep protection
  • Page 59 – Index
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FortiGate

IPS User Guide

Version 3.0 MR7

U S E R G U I D E

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Summary

Page 3 - Contents

Contents FortiGate IPS User Guide Version 3.0 MR701-30007-0080-20080916 3 Contents Introduction ........................................................................................ 5 The FortiGate IPS............................................................................................... ...

Page 5 - Introduction; The FortiGate IPS

Introduction The FortiGate IPS FortiGate IPS User Guide Version 3.0 MR701-30007-0080-20080916 5 Introduction This section introduces you to the FortiGate Intrusion Prevention System (IPS) and the following topics: • The FortiGate IPS • About this document • Fortinet documentation • Customer service ...

Page 6 - About this document; Document conventions; Typographic conventions; Fortinet documentation

FortiGate IPS User Guide Version 3.0 MR7 6 01-30007-0080-20080916 About this document Introduction About this document Document conventions The following document conventions are used in this guide: • In the examples, private IP addresses are used for both private and public IP addresses. • Notes an...

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