R3204P16-HP Load Balancing Module Security Configuration Guide-6PW101

188
Analysis
The number of URL address filtering entries, URL parameter filtering entries, Java blocking suffix keywords,
or ActiveX blocking suffix keywords has reached the upper limit.
Solution
If necessary, remove some configured entries or keywords before adding new ones.
Invalid characters are present in the configured parameter
Symptom
When you configure a URL address filtering entry or URL parameter filtering entry, the system prompts
you that there are invalid characters in the configured parameter.
Analysis
A URL address filtering entry can contain only 0 to 9, a to z, A to Z, dot “.”, hyphen “-“, underline “_”, and
wildcards “^”, “$”, “&”, and “*”. A URL parameter filtering entry can contain only 0 to 9, a to z, A to Z,
wildcards “^”, “$”, “&”, and “*”, and other ASCII characters with values between 31 and 127.
Solution
Ensure that all entered characters are valid.
Invalid use of wildcard
Symptom
When you configure a URL address filtering entry or URL parameter filtering entry, the system prompts
you that the wildcards are not used correctly.
Analysis
The wildcards for URL address filtering entries and those for URL parameter filtering entries have different
usage restrictions:
Table 40 Wildcards for URL address filtering entries
Wildcard Meanin
g
Usa
g
e
g
uidelines
^
Matches website addresses
starting with the keyword
It can be present once at the beginning of a filtering entry.
$
Matches website addresses
ending with the keyword
It can be present once at the end of a filtering entry.
&
Stands for a valid character other
than dot “.”
It can be present multiple times at any position of a
filtering entry, consecutively or inconsecutively, but
cannot be used together with “*”.
*
Stands for any number of valid
characters and spaces excluding
dot “.”
It can be present once at the beginning or in the middle of
a filtering entry. It cannot be at the end and cannot be
used next to “^” or “$”.