Kerio Tech Firewall6 Manual de usuario descargar pdf (Pagina 169)

11.3 HTTP and FTP scanning

169

Figure 11.8 Deﬁnition of an HTTP/FTP scanning rule

— this option ﬁlters out certain ﬁlenames (not entire URLs) transmitted by FTP

or HTTP (e.g.

.exe,

.zip, etc.).

If only an asterisk is used for the speciﬁcation, the rule will apply to any ﬁle

transmitted by HTTP or FTP.

The other two conditions can be applied only to HTTP:

• MIME type

— MIME types can be speciﬁed either by complete expressions (e.g. image/jpeg)

or using a wildcard matching (e.g. application/

• URL — URL of the object (e.g. www.kerio.com/img/logo.gif), a string speci-

ﬁed by a wildcard matching (e.g.

.exe) or a server name (e.g. www.kerio.com).

Server names represent any URL at a corresponding server (www.kerio.com/

If a MIME type or a URL is speciﬁed only by an asterisk, the rule will apply to any

HTTP object.

Action

Settings in this section deﬁne whether or not the object will be scanned.

If the Do not scan alternative is selected, antivirus control will not apply to trans-

mission of this object.

The new rule will be added after the rule which had been selected before Add was clicked.

You can use the arrow buttons on the right to move the rule within the list.

Checking the box next to the rule can be used to disable the rule. Rules can be disabled

temporarily so that it is not necessary to remove rules and create identical ones later.

Note: If the object does not match with any rule, it will be scanned automatically. If only

selected object types are to be scanned, a rule disabling scanning of any URL or MIME

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Kerio Tech Firewall6 Manual de usuario Pagina 169