Re: Egreping for Addressed

[Richard Arends <richard () unixguru nl>]

On Mon, 4 Aug 2003, Spamme Herefool wrote:

> I'm looking at writing my own script for auditing a few different boxes with
> a number of services.  I'm having trouble with something as simple as
> greping for IP addresses.  In short, I'm looking to ensure that particular
> Apache servers are being accessed only from inside our classB.  Given that:
>
> Assume the ClassB is "abc.def.X.X"
> Assume the ClassC is "123.456.789.Y",
>
> What would be the easiest way to grep out all allowed classB and classC
> addresses (from our remote sites) from the logs before parsing further?
>
> Seems this can be done on one, maybe two statements

Something like this?

        egrep 'abc\.def\.[A-Z]*\.[A-Z]*|123\.456\.789\.[A-Z]*'

or

        egrep 'abc\.def\.[0-9]*\.[0-9]*|123\.456\.789\.[0-9]*'

Regards,

Richard.

----
Paul Vixie in an interview with Sendmail.net:

Now that the Internet has the full spectrum of humanity as users,
the technology is showing its weakness: it was designed to be
used by friendly, smart people. Spammers, as an example of a class,
are neither friendly nor smart.

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