Fortinet FortiGate 50A

Contents
10 Fortinet Inc.
Logging attacks............................................................................................................... 222
Logging attack messages to the attack log................................................................. 222
Reducing the number of NIDS attack log and email messages.................................. 222
Antivirus protection........................................................................................... 225
General configuration steps............................................................................................ 225
Antivirus scanning........................................................................................................... 226
File blocking.................................................................................................................... 227
Blocking files in firewall traffic ..................................................................................... 227
Adding file patterns to block........................................................................................ 227
Blocking oversized files and emails ................................................................................ 228
Configuring limits for oversized files and email........................................................... 228
Exempting fragmented email from blocking.................................................................... 228
Viewing the virus list ....................................................................................................... 229
Web filtering ....................................................................................................... 231
General configuration steps............................................................................................ 231
Content blocking ............................................................................................................. 232
Adding words and phrases to the Banned Word list ................................................... 232
Clearing the Banned Word list .................................................................................... 233
Backing up the Banned Word list................................................................................ 233
Restoring the Banned Word list .................................................................................. 233
URL blocking................................................................................................................... 235
Configuring FortiGate Web URL blocking................................................................... 235
Configuring FortiGate Web pattern blocking............................................................... 237
Configuring Cerberian URL filtering ................................................................................ 238
Installing a Cerberian license key ............................................................................... 238
Adding a Cerberian user ............................................................................................. 238
Configuring Cerberian web filter ................................................................................. 239
Enabling Cerberian URL filtering ................................................................................ 239
Script filtering .................................................................................................................. 240
Enabling script filtering................................................................................................ 240
Selecting script filter options ....................................................................................... 240
Exempt URL list .............................................................................................................. 241
Adding URLs to the URL Exempt list .......................................................................... 241
Downloading the URL Exempt List ............................................................................. 242
Uploading a URL Exempt List..................................................................................... 242
Email filter........................................................................................................... 245
General configuration steps............................................................................................ 245
Email banned word list.................................................................................................... 246
Adding words and phrases to the email banned word list........................................... 246
Downloading the email banned word list .................................................................... 247
Uploading the email banned word list ......................................................................... 247