8e6 Technologies ProxyBlocker Manual Do Utilizador

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 G
LOBAL
 A
DMINISTRATOR
 S
ECTION
  C
HAPTER
 1: S
YSTEM
 
SCREEN
8
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6 T
ECHNOLOGIES
, P
ROXY
B
LOCKER
 U
SER
 G
UIDE
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HTTPS Filtering
Specify your preference for filtering HTTPS sites in the 
HTTPS Filtering frame. Select from the following settings for 
the HTTPS Filtering Level:
• “None” - if you do not want the ProxyBlocker to filter 
HTTPS sites
• “Low” - if you want the ProxyBlocker to filter HTTPS sites 
without having the ProxyBlocker communicate with IP 
addresses or hostnames of HTTPS servers
• “Medium” - if you want the ProxyBlocker to communicate 
with HTTPS servers in order to get the URL from the 
certificate for URL validation only (this is the default 
setting)
If "Medium" is selected, by default the option is enabled 
for forwarding the DNS lookup in order to validate the 
hostname in the certificate
• “High” - if you want the ProxyBlocker to communicate 
with HTTPS servers to obtain the certificate with a very 
strict validation of the return URL
If "High" is selected, by default the option is enabled for a 
library lookup to overrule the DNS validation of the host-
name in the certificate.
WARNING: If using the “High” setting, end users may be blocked 
from accessing acceptable Web sites if the host names of these 
sites do not match their generated certificates. To allow users 
access to acceptable HTTPS sites, the IP addresses and corre-
sponding URLs of these sites should be included in a custom 
library category that is allowed to pass. (See the Custom Catego-
ries sub-section in Chapter 3: Library screen for information on 
maintaining the ALLOW and PASS custom library categories. 
See Global Group Profile window and Minimum Filtering Level 
window in Chapter 2: Group screen from the Global Administrator 
Section for information on allowing a library category to pass.)