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RE: Security benefits of spliting services between two ISP providers
From: "Dave Hawkins" <DaveH () Radware com>
Date: Tue, 17 May 2005 12:45:57 -0400

In the case of DDoS, if your web services are targeted, your email
systems would still have plenty of bandwidth (splitting services in that
way).  Segmenting services like this would pose no real threat from a
security standpoint, and in my opinion, only allows you to more fully
utilize both lines that you're already paying for.  In the case of
actual ISP failures, it is quite easy to use something like the Radware
LinkProof or WSD to handle complete fail-over to other network
providers.  It can be (and is) easily done with a lot of our clients who
require high-availability for disasters, but also to prevent someone
from saturating a particular ISP link.  Combine this with a
multi-segment IPS and you can minimize your risks greatly.
Don't misinterpret this as a plug for our products, but Radware has been
in the high-availability and security space for a while now, and we get
these kinds of questions all the time.

Cheers,
-Dave Hawkins
Security Engineer
Radware
http://www.radware.com


-----Original Message-----
From: full-disclosure-bounces () lists grok org uk
[mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of Frank
Laszlo
Sent: Tuesday, May 17, 2005 8:04 AM
To: Reece Mills
Cc: full-disclosure () lists grok org uk
Subject: Re: [Full-disclosure] Security benefits of spliting services
between two ISP providers

Not exactly. If one ISP fails, the other could be used as a backup
system for the services that are on the "failed" isp. This could be done
with a transparent proxy or something of the sort.

Regards,
    Frank


Reece Mills wrote:

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Only part of what you need will be affected if one of your ISPs 
fail....  Hope it is not the web based business services provider...
Hope it
is not the email provider....   
Ok... What will be the security benefit of splitting services between 
two ISP providers as you described?

Nothing.

Reece


Rossen S. Naydenov wrote:

|Hi group,
|
|What will be the security benefit of splitting services between two 
|ISP providers?
|By splitting services I mean have one ISP serve only web based 
|business services and other ISP serve the email and traffic generated

|by internal web browsing (or something similar).
|Right now everything goes through one ISP and second ISP connection 
|is kept as a backup.
|
|Thanks.
|
|
|
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_______________________________________________
Full-Disclosure - We believe in it.
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


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