Re: Portscan2...

[Erek Adams <erek () snort org>]

On Sat, 22 Mar 2003, Tobias Rice wrote:

> Thanks for the tips, I'll try the ignore options and see if it works for
> me. But I.m a little confused about the BPF filters, the man page is a
> little vague.
> Currently, I.m running snort like so:
> /usr/sbin/snort-mysql+flexresp -o -i eth0 -c /etc/snort/snort.conf
>
> So would it now be: (after creating the file scan.bpf)
> /usr/sbin/snort-mysql+flexresp -o -i eth0 -c /etc/snort/snort.conf .F
> bpf_file: /etc/snort/scan.bpf
> And the file scan.bpf would contain this:
> not host 111.222.333.444 and not port (53 or 5060)

Not quite:

        /usr/sbin/snort-mysql+flexresp -o -i eth0 -c /etc/snort/snort.conf
-F /etc/snort/scan.bpf

Or

        /usr/sbin/snort-mysql+flexresp -o -i eth0 -c /etc/snort/snort.conf
'not host 111.222.333.444 and not port (53 or 5060)'

As one long command line.

Or do a bit of creative setup in snort.conf.

Add:

        config order: pass alert log
        config interface: eth0
        config bpf_file: /etc/snort/scan.bpf

Then:

        ln -s /etc/snort/snort.conf /etc/snort.conf

Then you could just do:

        /usr/sbin/snort-mysql+flexresp

But, just do whatever works for you.  :)  That's the important thing.

Cheers!

-----
Erek Adams

   "When things get weird, the weird turn pro."   H.S. Thompson


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