Deny URL check
The Deny URL check examines and blocks connections to URLs that are commonly accessed by hackers and malicious code. This check contains a list of URLs that are common targets of hackers or malicious code and that rarely if ever appear in legitimate requests. You can also add URLs or URL patterns to the list. The Deny URL check prevents attacks against various security weaknesses known to exist in web server software or on many websites.
The Deny URL check takes priority over the Start URL check, and thus denies malicious connection attempts even when a Start URL relaxation would normally allow a request to proceed.
In the Modify Deny URL Check dialog box, on the General tab you can enable or disable the Block, Log, and Statistics actions.
If you use the command-line interface, you can enter the following command to configure the Deny URL Check:
set appfw profile -denyURLAction [**block**] [**log**] [**stats**] [**none**]
To create and configure your own deny URLs, you must use the GUI. On the Checks tab of the Modify Deny URL Check dialog box, click Add to open the Add Deny URL dialog box, or select an existing user-defined deny URL and click Open to open the Modify Deny URLdialog box. Either dialog box provides the same options for creating and configuring a deny URL.
Following are examples of Deny URL expressions:
Do not allow users to access the image server at images.example.com directly:
^http://images[.]example[.]com$
Do not allow users to access CGI (.cgi) or PERL (.pl) scripts directly:
^http://www[.]example[.]com/([0-9A-Za-z][0-9A-Za-z_-]*/)* [0-9A-Za-z][0-9A-Za-z_.-]*[.](cgi|pl)$
Here is the same deny URL, modified to support non-ASCII characters:
^http://www[.]example[.]com/(([0-9A-Za-z]|x[0-9A-Fa-f][0-9A-Fa-f]) ([0-9A-Za-z_-]|x[0-9A-Fa-f][0-9A-Fa-f])*/)*([0-9A-Za-z]|x[0-9A-Fa-f][0-9A-Fa-f]) ([0-9A-Za-z_-]|x[0-9A-Fa-f][0-9A-Fa-f])*[.](cgi|pl)$
Caution:
Regular expressions are powerful. Especially if you are not thoroughly familiar with PCRE-format regular expressions, double-check any regular expressions you write. Make sure that they define exactly the URL or pattern that you want to block, and nothing else. Careless use of wildcards, and especially of the dot-asterisk (.*) metacharacter/wildcard combination, can have results that you do not want, such as blocking access to web content that you did not intend to block.
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DIESER DIENST KANN ÜBERSETZUNGEN ENTHALTEN, DIE VON GOOGLE BEREITGESTELLT WERDEN. GOOGLE LEHNT JEDE AUSDRÜCKLICHE ODER STILLSCHWEIGENDE GEWÄHRLEISTUNG IN BEZUG AUF DIE ÜBERSETZUNGEN AB, EINSCHLIESSLICH JEGLICHER GEWÄHRLEISTUNG DER GENAUIGKEIT, ZUVERLÄSSIGKEIT UND JEGLICHER STILLSCHWEIGENDEN GEWÄHRLEISTUNG DER MARKTGÄNGIGKEIT, DER EIGNUNG FÜR EINEN BESTIMMTEN ZWECK UND DER NICHTVERLETZUNG VON RECHTEN DRITTER.
CE SERVICE PEUT CONTENIR DES TRADUCTIONS FOURNIES PAR GOOGLE. GOOGLE EXCLUT TOUTE GARANTIE RELATIVE AUX TRADUCTIONS, EXPRESSE OU IMPLICITE, Y COMPRIS TOUTE GARANTIE D'EXACTITUDE, DE FIABILITÉ ET TOUTE GARANTIE IMPLICITE DE QUALITÉ MARCHANDE, D'ADÉQUATION À UN USAGE PARTICULIER ET D'ABSENCE DE CONTREFAÇON.
ESTE SERVICIO PUEDE CONTENER TRADUCCIONES CON TECNOLOGÍA DE GOOGLE. GOOGLE RENUNCIA A TODAS LAS GARANTÍAS RELACIONADAS CON LAS TRADUCCIONES, TANTO IMPLÍCITAS COMO EXPLÍCITAS, INCLUIDAS LAS GARANTÍAS DE EXACTITUD, FIABILIDAD Y OTRAS GARANTÍAS IMPLÍCITAS DE COMERCIABILIDAD, IDONEIDAD PARA UN FIN EN PARTICULAR Y AUSENCIA DE INFRACCIÓN DE DERECHOS.
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ESTE SERVIÇO PODE CONTER TRADUÇÕES FORNECIDAS PELO GOOGLE. O GOOGLE SE EXIME DE TODAS AS GARANTIAS RELACIONADAS COM AS TRADUÇÕES, EXPRESSAS OU IMPLÍCITAS, INCLUINDO QUALQUER GARANTIA DE PRECISÃO, CONFIABILIDADE E QUALQUER GARANTIA IMPLÍCITA DE COMERCIALIZAÇÃO, ADEQUAÇÃO A UM PROPÓSITO ESPECÍFICO E NÃO INFRAÇÃO.