AW: AW: snort filter

["Eduard Meiler" <edik () meiler org>]

Hallo Erek,


doing this I get an error:

Reading network traffic from xxxxx-snort.log file
ERROR-> unable to open file xxxxx-snort.log for readback : archaic file
format
Fatal Error Quitting

any ideas ???

eduard


> -----Ursprungliche Nachricht-----
> Von: Erek Adams [mailto:erek () theadamsfamily net]
> Gesendet: Mittwoch, 26. September 2001 22:57
> An: Eduard Meiler
> Cc: snort-users () lists sourceforge net
> Betreff: Re: AW: [Snort-users] snort filter
>
>
> On Wed, 26 Sep 2001, Eduard Meiler wrote:
>
> > the DSN ist not ours.
>
> Hrm...  Something odd could be going on then.
>
> > the rule for that is like here, so how I shloud change this ?
> >
> > alert UDP $EXTERNAL_NET 53 -> ?HOME_NET :1023 (msg:"MISC
> sourse port 53 to <
> > 1024"; classtype bad-unknown; sid:515; rev:2;)
>
> No.  You should never change a rule to remove 'lots of
> alerts' until you are
> certain that it is a false positive.
>
> Have a look at the packet payload and see what's up.  Use
> something like:
>
>       snort -dvr 0915 () 1013-snort log host 192.168.7.200
>
> That should decode all packets to/from that host to your
> screen.  If the
> packet has all normal signs of DNS, then it might be a
> misconfigured host on
> your internal net.  If it doesn't have those signs, then you
> might want to
> examine that your local host a bit more closely.
>
> -----
> Erek Adams
> Nifty-Type-Guy
> TheAdamsFamily.Net


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