Firewall-1

Re: [FW-1] allow dynamic url/domain

Subject: Re: [FW-1] allow dynamic url/domain
From: Juniman Kasman <juniman AT GMAIL DOT COM>
To: FW-1-MAILINGLIST AT AMADEUS.US.CHECKPOINT DOT COM
Date: Fri, 24 Feb 2006 08:37:37 +0700
Hi All,

If I have checkpoint connect directly to the internet routers or proxy
server, and smartcenter behind checkpoint; what's the policy/rules needed to
allow smardefense update?

Can u help me to construct the rules?

Thanks

On 2/23/06, Reinhard Stich <r.stich AT internet-security DOT at> wrote:
>
> hi,
>
> At 10:01 23.02.2006, you wrote:
> >Reinhard Stich wrote:
> > > hi,
> > >
> > > I can't recommend working with domain-names because the fw is required
> > > to do dns-lookups for every IP then - and this makes it slow.
> > >
> > > for http you can work with ressources - but this only works for http.
> >
> >Doesn't http_resoucers do dns-lookups? what's the diference? caches?
>
> ressource looks at HTTP-headers, domain-object in the rulebase looks
> into the IP-header over *every* packet, that's a little bit more to
> do for the firewall :-)
>
> my solution for that is to have a nslookup-script, that informs me
> about IP-changes for some sites and I update the firewall-config then ...
> this is ok for 1 or 2 domains, that's nightmare if you have more
> domains/URLs to monitor. then it's time to invest into a spezialized
> product :-)
>
> cheers
> reinhard
>
> --
> Reinhard Stich  ASSIST  R.Stich AT internet-security DOT at
> Internet Security AG,      1150 Wien, Johnstrasse 29
> Tel: +43 1 3709440 RS784-RIPE Fax: +43 1 3709440-333
>
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--
Juniman Kasman
Security Consultant

PT Packet Systems Indonesia
(a member of DMX Technologies)
Phone   : +62 21 577 0777
Fax       : +62 21 577 0222
Mobile  : +62 816 965689
Email    : juniman.kasman AT packet-systems DOT com

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