Re: Routing?
- From: Glenn Maks <gmaks@xxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Mon, 30 Jun 2003 13:14:25 -0400
ISA Filters out ICMP so by design ping will fail to the Public interface,
you have to enable that if you want to ping your public address.
-----Original Message-----
From: MOSHOOD ARE [mailto:aremoshood@xxxxxxxxx]
Sent: Monday, June 30, 2003 1:07 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Routing?
http://www.ISAserver.org
Thanks for your reply.
Well , if I may ask you one more question:
Initially, I had installed ISA on My standalone machine on mY NETWORK and I
could receive mails but I could not send mails.
I Could not ping the public IP address on the ISA from the E2K and from the
domain except from the ISA.
Hope to hear from you.
"John Tolmachoff (Lists)" <johnlist@xxxxxxxxxxxxxxxxxxx> wrote:
http://www.ISAserver.org
> But before I install ISA, I think my local network must work perfectly.
Perfect is one of those goals that is never quite reached. The foundation
and design of the network needs to be carefully planned and laid out.
However, one of the first things that needs to be implemented in a network
that is connected to the Internet is a firewall.
> Are you saying, I should put the public IP address which resolves to my
domain name on the ISA server, would I not be exposing the mail saver that
way.
Yes it would expose your mail server until ISA is installed and configured.
That is why the firewall is one of the first to go up.
I would highly suggest getting Dr. Tom's books and reading them through.
Again, it can not be stressed enough: If you are going to have publicly
available services (mail server) open to the Internet, a firewall first is a
must.
John Tolmachoff MCSE CSSA
Engineer/Consultant
eServices For You
www.eservicesforyou.com
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