Re: tcp syn flood attack

[Luis Daniel Lucio Quiroz <luis.daniel.lucio () gmail com>]

Ok, after reading ineed to drop a highg  tcp syn flood, to my squid

is this rule  fine or shall do other tunning


drop tcp any any > 10.1.1.100 3128 ( \
    msg:”Squid sync flood”;
    flow:established,to_server; \
    detection_filter: track by_src, count 10, seconds 60; \
    sid:1000001; rev:1;)

Reegards,

LD

Le lundi 14 juin 2010 11:58:54, Russ Combs a écrit :
> That is documented in the Snort manual and in README.filters in the
> tarball.
>
> On Mon, Jun 14, 2010 at 12:43 PM, Luis Daniel Lucio Quiroz <
>
> luis.daniel.lucio () gmail com> wrote:
> > in 2.8 how is this rule?
> >
> > Le lundi 14 juin 2010 10:51:44, Russ Combs a écrit :
> > > Snort 2.4 is out of date.  The latest Snort includes a rate-based
> > > attack detection capability that addresses syn floods.  Have you tried
> >
> > downloading
> >
> > > the tarball from snort.org and building an inline version?
> > >
> > > Russ
> > >
> > > On Sun, Jun 13, 2010 at 6:42 PM, black_angel black_angel <
> > >
> > > black.sad.angel () gmail com> wrote:
> > > > Hello everybody
> > > > my snort inline 2.4 can't detect a syn flood attack using hping3 if
> > > > someone can help me please to write a rule to avoid this attack
> > > > tnx
> >
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ThinkGeek and WIRED's GeekDad team up for the Ultimate 
GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the 
lucky parental unit.  See the prize list and enter to win: 
http://p.sf.net/sfu/thinkgeek-promo
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