Fortinet Network Device IPS Uživatelský manuál stáhnout pdf (Strana 3)

Contents

FortiGate IPS User Guide Version 3.0 MR7

01-30007-0080-20080916 3

Contents

Introduction ........................................................................................ 5

The FortiGate IPS............................................................................................... 5

About this document......................................................................................... 6

Document conventions.................................................................................. 6

Fortinet documentation .................................................................................... 6

Fortinet Knowledge Center .......................................................................... 8

Comments on Fortinet technical documentation .......................................... 8

Customer service and technical support ........................................................ 8

IPS overview and general configuration.......................................... 9

The FortiGate IPS............................................................................................... 9

IPS settings and controls .............................................................................. 9

When to use IPS ......................................................................................... 10

Network performance...................................................................................... 10

Default signature and anomaly settings ...................................................... 10

Default fail open setting............................................................................... 10

Controlling sessions .................................................................................... 11

Setting the buffer size ................................................................................. 11

Monitoring the network and dealing with attacks ........................................ 11

Configuring logging and alert email............................................................. 11

Attack log messages ................................................................................... 12

The FortiGuard Center ................................................................................ 13

Using IPS sensors in a protection profile ..................................................... 14

Creating a protection profile that uses IPS sensors .................................... 14

Adding protection profiles to firewall policies .............................................. 14

Adding protection profiles to user groups.................................................... 15

Predefined signatures ..................................................................... 17

IPS predefined signatures .............................................................................. 17

Viewing the predefined signature list............................................................ 17

Fine tuning IPS predefined signatures for enhanced system performance 18

Custom signatures........................................................................... 21

IPS custom signatures.................................................................................... 21

Viewing the custom signature list.................................................................. 21

Custom signature configuration .................................................................... 22

Adding custom signatures using the web-based manager ......................... 22

Adding custom signatures using the CLI..................................................... 22

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Fortinet Network Device IPS Uživatelský manuál Strana 3