Re: Block google page cache at firewall?

In the case of blocking obfuscated strings such as hexadecimal
representations; use the L7 filter. It may be easier and more efficient
to mark the http traffic and then jump to a regular expression target
to match against.

Something such as:

\x[:printxdigit:][:printxdigit:]([:printxdigit:])?

This should match against \xNN where N is a hexadecimal character; as
well as
\xNNN. That is --- if my regex skill aren't too rusty. ;)
Received on Mon May 1 01:06:02 2006