ZyXEL Communications ZYWALL 35 User Manual page 17

13.3.2 Intrusion Severity ................................................................................................... 283
13.3.3 Signature Actions ................................................................................................... 283
13.3.4 Configuring IDP Signatures .................................................................................... 284
13.3.5 Query View ............................................................................................................ 286
13.4 Update ............................................................................................................................ 290
13.4.1 mySecurityZone ..................................................................................................... 290
13.4.2 Configuring IDP Update ......................................................................................... 291
13.5 Backup and Restore ........................................................................................................ 293
Chapter 14
Anti-Virus............................................................................................................................... 295
14.1 Anti-Virus Overview ........................................................................................................ 295
14.1.1 Types of Computer Viruses ................................................................................... 295
14.1.2 Computer Virus Infection and Prevention .............................................................. 295
14.1.3 Types of Anti-Virus Scanner .................................................................................. 296
14.2 Introduction to the ZyWALL Anti-Virus Scanner .............................................................. 296
14.2.1 How the ZyWALL Anti-Virus Scanner Works ........................................................ 296
14.2.2 Notes About the ZyWALL Anti-Virus ...................................................................... 297
14.3 General Anti-Virus Setup ................................................................................................. 298
14.4 Signature Searching ........................................................................................................ 300
14.4.1 Signature Search Example .................................................................................... 302
14.5 Signature Update ........................................................................................................... 303
14.5.1 mySecurityZone ..................................................................................................... 304
14.5.2 Configuring Anti-virus Update ............................................................................... 304
14.6 Backup and Restore ....................................................................................................... 306
Chapter 15
Anti-Spam .............................................................................................................................. 307
15.1 Anti-Spam Overview
15.1.1 Anti-Spam External Database ................................................................................ 307
15.1.2 Spam Threshold ..................................................................................................... 309
15.1.3 Phishing ................................................................................................................. 309
15.1.4 Whitelist .................................................................................................................. 310
15.1.5 Blacklist .................................................................................................................. 310
15.1.6 SMTP and POP3 .................................................................................................... 310
15.1.7 MIME Headers ....................................................................................................... 310
15.2 Anti-Spam General Screen ...............................................................................................311
15.3 Anti-Spam External DB Screen
15.4 Anti-Spam Lists Screen .................................................................................................. 315
15.5 Anti-Spam Lists Edit Screen .......................................................................................... 317
Chapter 16
Content Filtering Screens .................................................................................................... 321
ZyWALL 5/35/70 Series User's Guide
..................................................................................................... 307
.................................................................................. 313
Table of Contents
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