Fortinet FORTIGATE-50B Instrução De Instalação

Banned word lists are specific words that may be typically found in email. The 
FortiGate unit searches for words or patterns in email messages. If matches are 
found, values assigned to the words are totalled. If the defined threshold value is 
exceeded, the message is marked as spam. If no match is found, the email 
message is passed along to the next filter.

You configure banned words by going to Antispam > Banned Word.

While FortiGuard services maintain a large list of known spammers, it is not 
perfect. In some cases, some mail tagged as spam is an individual you want to 
receive mail from, while email that is not caught by the spam filters or users you 
don’t want to receive email from gets through to your inbox.

White lists and black lists enable you to maintain a list of email addresses that you 
want (white list) or don’t want (black list) to receive email from. You can add or 
remove addresses from lists as required. The FortiGate unit uses both an IP 
address list and an email address list to filter incoming email, if enabled in the 
protection profile.

When performing an IP address list check, the FortiGate unit compares the IP 
address of the message's sender to the IP address list in sequence. If a match is 
found, the action associated with the IP address is taken. If no match is found, the 
message is passed to the next enabled spam filter.

When performing an email list check, the FortiGate unit compares the email 
address of the message's sender to the email address list in sequence. If a match 
is found, the action associated with the email address is taken. If no match is 
found, the message is passed to the next enabled antispam filter.

To configure black/white lists, go to AntiSpam > Black/White List.

You enable antispam options for each mail service (POP3, IMAP and SMTP) in 
the protection profile. To configure antispam protection profile settings, go to 
Firewall > Protection Profile. Select edit for a profile and select the Spam 
Filtering options.

For details on the antispam features and settings, see the FortiGate 
Administration Guide or the FortiGate Online Help.

Web filtering is a method of controlling what web sites are viewable by users. 
There are three main sections to web filtering: the Web Filter Content Block, the 
URL Filter, and the FortiGuard Web filter. Each interact with each other in such a 
way as to provide maximum control and protection for the Internet users.

Web filtering options are enabled and configured in the protection profile settings 
by going to Firewall > Protection Profile. Select edit for a profile and selecting 
either the FortiGuard Web Filtering options or the Web Filtering options. You need 
to register your FortiGate unit and purchase FortiGuard services to use 
FortiGuard Web Filtering.

Content blocking enables you to specify file types and words that the FortiGate 
unit should block when encountered. With web content block enabled, every 
requested web page is checked against the content block list. The score value of 
each pattern appearing on the page is added, and if the total is greater than the 
threshold value set in the protection profile, the page is blocked.