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Chapter 25 Content Filtering
NBG4615 User’s Guide
192
25.3 Technical Reference
The following section contains additional technical information about the NBG4615 features
described in this chapter.
25.3.1 Customizing Keyword Blocking URL Checking
You can use commands to set how much of a website’s URL the content filter is to check for
keyword blocking. See the appendices for information on how to access and use the command
interpreter.
Domain Name or IP Address URL Checking
By default, the NBG4615 checks the URL’s domain name or IP address when performing keyword
blocking.
This means that the NBG4615 checks the characters that come before the first slash in the URL.
For example, with the URL www.zyxel.com.tw/news/pressroom.php
, content filtering only searches
for keywords within www.zyxel.com.tw
.
Full Path URL Checking
Full path URL checking has the NBG4615 check the characters that come before the last slash in the
URL.
For example, with the URL www.zyxel.com.tw/news/pressroom.php
, full path URL checking
searches for keywords within www.zyxel.com.tw/news/
.
Use the ip urlfilter customize actionFlags 6 [disable | enable] command to extend (or
not extend) the keyword blocking search to include the URL's full path.
Keyword Type a keyword in this field. You may use any character (up to 64 characters).
Wildcards are not allowed. You can also enter a numerical IP address.
Keyword List This list displays the keywords already added.
Add Click Add after you have typed a keyword.
Repeat this procedure to add other keywords. Up to 64 keywords are allowed.
When you try to access a web page containing a keyword, you will get a
message telling you that the content filter is blocking this request.
Delete Highlight a keyword in the lower box and click Delete to remove it. The
keyword disappears from the text box after you click Apply.
Clear All Click this button to remove all of the listed keywords.
Apply Click Apply to save your changes.
Cancel Click Cancel to begin configuring this screen afresh
Table 77 Security > Content Filter (continued)
LABEL DESCRIPTION