Stephen Ward wrote:
Just a quick silly question.
Running BIND9 (someone kindly raped to get it to work on windows) but it
does not seem to support CIDR ranges. I mostly use it to block unwanted
email by connecting IP (glorified reverse DNS).
Rather than have to enter loads of lines to match up wide spans of ranges
I would like to define them using CIDR, but it seems it does not support
it.
I'm probably being really thick - but is this so?!
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I do a similar thing with BIND in my network I take IP ranges for
certain countries and set up a blocklist using reverse format. BIND
will work with CIDR but in a very limited way. Heres an example from my
list:
*.82.77 IN A 127.0.0.3
The stetment above will block a whole /16
*.191.79.77 IN A 127.0.0.3
The statement above will block a whole /24
So, you just have to set up your script to break things down by /8, /16,
or /24. Thats about the best you can do.
Darin -
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