ZyXEL Communications ZyWALL5UTM 4.0 Chapter, Chapter, Chapter, Anti-Spam, Anti-Virus, Content Filtering Screens

ZyWALL 5/35/70 Series User’s Guide

13.3.3 Signature Actions ..................................................................................	244
13.3.4 Configuring IDP Signatures ..................................................................	245
13.3.5.1 Query Example 1 ........................................................................	247
13.3.5.2 Query Example 2 ........................................................................	249
13.4.1 mySecurity Zone ...................................................................................	250
13.4.2 Configuring IDP Update ........................................................................	251
Chapter 14
Anti-Virus ..............................................................................................................	254
14.1.1 Types of Computer Viruses .................................................................	254
14.1.2 Computer Virus Infection and Prevention .............................................	254
14.1.3 Types of Anti-Virus Scanner ................................................................	255
14.2 Introduction to the ZyWALL Anti-Virus Scanner .............................................	255
14.2.1 How the ZyWALL Anti-Virus Scanner Works .......................................	256
14.2.2 Notes About the ZyWALL Anti-Virus .....................................................	256
14.3 General Anti-Virus Setup ...............................................................................	257
14.4.1 mySecurity Zone ...................................................................................	259
14.4.2 Configuring Anti-virus Update ...............................................................	259
Chapter 15
Anti-Spam .............................................................................................................	262
15.1.1 Anti-Spam External Database ...............................................................	262
15.1.1.1 SpamBulk Engine ........................................................................	263
15.1.1.2 SpamRepute Engine ...................................................................	263
15.1.1.3 SpamContent Engine ..................................................................	263
15.1.1.4 SpamTricks Engine .....................................................................	264
15.1.2 Spam Threshold ....................................................................................	264
15.1.3 Phishing ................................................................................................	264
15.1.4 Whitelist ................................................................................................	265
15.1.5 Blacklist .................................................................................................	265
15.1.6 SMTP and POP3 ..................................................................................	265
15.1.7 MIME Headers ......................................................................................	266
15.2 Anti-Spam General Screen ............................................................................	266
Chapter 16
Content Filtering Screens ...................................................................................	274
16.1 Content Filtering Overview .............................................................................	274
16.1.1 Restrict Web Features ..........................................................................	274
16.1.2 Create a Filter List ................................................................................	274
16.1.3 Customize Web Site Access ................................................................	274
16.3 Content Filtering with an External Database ..................................................	276
16.6 Customizing Keyword Blocking URL Checking ..............................................	286
16.6.1 Domain Name or IP Address URL Checking ........................................	286

15 Table of Contents