RE: OWA 2003

  • From: "Carl Houseman" <c.houseman@xxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Sun, 22 Jan 2006 12:24:37 -0500

I'll assume that you don't speak for Microsoft and you don't have anything
to back up "what they had in mind" other than a personal belief.

If it is more than a belief, feel free to name names of Microsoft employees
who told you what they had in mind.

I'm done with this now.  You can of course try the same argument over at
that other Exchange list if you need more abuse from MVPs.

Carl

-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] 
Sent: Sunday, January 22, 2006 12:07 PM
To: [ExchangeList]
Subject: [exchangelist] RE: OWA 2003

Hi Carl,

I don't call opening a handful of ports "blowing holes". I think
security professionals know better. What Microsoft had in mind with to
keep things rediculously easy for the ill informed, that's all.

Tom

Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
**Who is John Galt?**

 

> -----Original Message-----
> From: Carl Houseman [mailto:c.houseman@xxxxxxxxx] 
> Sent: Sunday, January 22, 2006 10:55 AM
> To: [ExchangeList]
> Subject: [exchangelist] RE: OWA 2003
> 
> http://www.MSExchange.org/
> 
> As always, there are two camps on this.  One camp wants to 
> blow holes in the
> firewall to permit the FE to talk to the BE.  The other wants 
> to avoid that.
> 
> See "Figure 1 Secure Firewall Structure" here:
> <http://www.microsoft.com/technet/security/prodtech/exchangese
> rver/secmod44.
> mspx>
> 
> So, Microsoft favors the FE and BE servers on the same 
> security zone, when
> their ISA server is used as reverse proxy.
> 
> Have fun arguing with Microsoft.  When you convince them and 
> they change
> their document, let us know.  Otherwise, we already know your 
> opinion, so
> thanks for sharing.
> 
> Carl
> 
> -----Original Message-----
> From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] 
> Sent: Sunday, January 22, 2006 11:31 AM
> To: [ExchangeList]
> Subject: [exchangelist] RE: OWA 2003
> 
> http://www.MSExchange.org/
> 
> About why putting a front-end, Internet facing, Exchange Server on the
> same security zone as the back end Exchange servers. I'd like to
> understand the misconceptions that underlie that assertion, so that we
> can shoot them down and show how foolish they are.
> 
> Thanks!
> Tom
> 
> Thomas W Shinder, M.D.
> Site: www.isaserver.org
> Blog: http://spaces.msn.com/members/drisa/
> Book: http://tinyurl.com/3xqb7
> MVP -- ISA Firewalls
> 
>  
> 
> > -----Original Message-----
> > From: Andy David [mailto:adavid@xxxxxxxxxxxxx] 
> > Sent: Sunday, January 22, 2006 10:30 AM
> > To: [ExchangeList]
> > Subject: [exchangelist] RE: OWA 2003
> > 
> > http://www.MSExchange.org/
> > 
> > About what? 
> > 
> > 
> > -----Original Message-----
> > From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] 
> > Sent: Sunday, January 22, 2006 11:25 AM
> > To: [ExchangeList]
> > Subject: [exchangelist] RE: OWA 2003
> > 
> > http://www.MSExchange.org/
> > 
> > Hi Andy,
> > 
> > You are patently WRONG about that. Where did you get such incorrect
> > advice? Because whoever told you that is most definitely 
> not security
> > minded.
> > 
> > You might want to share the rationale you used for this assertion so
> > that we can shoot it down sequentially and rationally.
> > 
> > Tom
> > 
> > Thomas W Shinder, M.D.
> > Site: www.isaserver.org
> > Blog: http://spaces.msn.com/members/drisa/
> > Book: http://tinyurl.com/3xqb7
> > MVP -- ISA Firewalls
> > 
> >  
> > 
> > > -----Original Message-----
> > > From: Andy David [mailto:adavid@xxxxxxxxxxxxx]
> > > Sent: Saturday, January 21, 2006 9:57 PM
> > > To: [ExchangeList]
> > > Subject: [exchangelist] RE: OWA 2003
> > > 
> > > http://www.MSExchange.org/
> > > 
> > > http://www.microsoft.com/downloads/details.aspx?FamilyID=E6466
> > > 6FC-42B7-4
> > > 8A1-AB85-3C8327D77B70&displaylang=en
> > > 
> > > 
> > > Don't put it in the DMZ however. That's just foolish. Put a 
> > > reverse-proxy in the DMZ if you must. Otherwise, keep the 
> Front End 
> > > server behind your firewall.
> > > 
> > > 
> > > 
> > > -----Original Message-----
> > > From: Dave Flaim [mailto:thethin@xxxxxxxxxxxxxxxxxxxxxxx]
> > > Sent: Saturday, January 21, 2006 10:41 PM
> > > To: [ExchangeList]
> > > Subject: [exchangelist] OWA 2003
> > > 
> > > http://www.MSExchange.org/
> > > 
> > > Is it possible to install OWA on a separate server than 
> the Excange 
> > > 2003 server - ie. we would like to place he OWA server in 
> > the DMZ.  Of
> > 
> > > so does anyone have a procedure or reference?
> > > 
> > > Thanks
> > > Dave Flaim
> > > CVI



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