RE: ISA 2000 Questions!
- From: "ck" <can.kilic@xxxxxxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 12 Aug 2004 23:00:35 +0300
Hi Tim,
I would suggest you take a look at the link where you can find a ton of
information about ISA Server which are not confusing :))
http://www.isaserver.org
Thanks
CK
ps You can find all the answer for your questions in that site.
_____
From: tim S [mailto:tim724342@xxxxxxxxx]
Sent: Thursday, August 12, 2004 9:40 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] ISA 2000 Questions!
http://www.ISAserver.org
I am fairly new to the ISA 2000 server. I am already reading few books
(except Tom Shinder's books, which I couldn't find any in my local Barnes
and Noble or other stores). Each time I read an ISA book, I come away with
more questions and confusion. So, if someone can address the following
potential FAQ questions, I would really appreciate it.
1) What exactly is the difference between SecureNAT(snat) and Firewall
clients? The only thing that I seem to grasp is that firewall client allows
you to log authentication information, accepts requests from Winsock apps
and performs DNS lookup itself.
2) Do snat and firewall clients contact firewall service on the ISA server
or each has its own service to contact in ISA.
3) And once they make contact with firewall service, if the request is for
webpage, do they always use HTTP redirector? If I disable the HTTP
redirector, how snat and firewall clients send out http request to internet
assuming webproxy client is not configured on these clients?
3.1) I read somewhere eventhough incoming request came from different
external NIC IP number, any outgoing response always goes out using the
primary external NIC IP. Is my understanding correct? If it is, how the
internet clients know that the response it receive is from correct source?
4)Do webproxy, firewall and snat clients have to go through the same rules
and policies before going out to the internet?
I mean do they go through each of the following policies each time a request
was made from internal clients?
a) protocol rule
b) Site and content rule
c) IP packet filterings
5)Can I still access HTTP pages on the internet, if I disable the webproxy
service? Or is web proxy service an absolute requirement for any internal
clients to go out to the internet websites?
Thank you
_____
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