RE: Help with the web proxy setup in ISA 2004
- From: "Jim Harrison" <Jim@xxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Tue, 24 May 2005 17:10:19 -0700
Any host portion of a URL that contains a period (.) is considered to be
non-local by IE (and other browsers as well) unless you provide
additional information.
You have to add your LAT entries in the "local domains" list as well.
-------------------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
<http://isaserver.org/Jim_Harrison/>
http://isatools.org <http://isatools.org/>
Read the help / books / articles!
-------------------------------------------------------
________________________________
From: tim S [mailto:tim724342@xxxxxxxxx]
Sent: Tuesday, May 24, 2005 16:50
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Help with the web proxy setup in ISA 2004
http://www.ISAserver.org
Thanks Tom that works like charm. I follwed the instructions on your
book. They can access the local FQDNS like http://intranet.company.org
without going through proxy. One problem I have now is if the users
type http://10.10.5.2 which resolves to intranet.company.org, they get:
Error Code: 502 Proxy Error. The ISA Server denied the specified Uniform
Resource Locator (URL). (12202)
Obviously the browser is not recognizing the IP as local. What can I
do?
If I tried FTP://10.10.5.10 in the browser that works fine. If I tried
FTP 10.10.5.10 in the command prompt, it works fine too. so I know
firewall client doesn't deal with local addresses.
Thanks for your help.
Thomas W Shinder <tshinder@xxxxxxxxxxx> wrote:
http://www.ISAserver.org
Hi Tim,
In order to use the settings you configured for Web Proxy Direct
Access in the ISA firewall console, you need to complete the process by
configuring the Web proxy clients to use the autoconfiguration script.
Autodiscovery will accomplish this just fine, or you can do it manually
or through Group policy.
HTH,
Tom
www.isaserver.org/shinder <http://www.isaserver.org/shinder>
Tom and Deb Shinder's Configuring ISA Server 2004
http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7>
MVP -- ISA Firewalls
________________________________
From: tim S [mailto:tim724342@xxxxxxxxx]
Sent: Monday, May 23, 2005 8:15 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Help with the web proxy setup in ISA 2004
http://www.ISAserver.org
I have ISA 2004 on w2k3 and it's an edge firewall. I allow all
protocol from Internal to External (this will soon be changed). All
three client types are configured in each workstation. My Internal
machines have problem accessing internal websites (No looping through
firewall). If I disable the proxy setting in the browser, workstations
have no problem. I check marked 'By pass addresses found in the Domain
Tab" and also entered my internal domain name in the Web browser tab of
"Internal" network properties. I still can't get the web proxy clients
not to contact ISA for internal websites. If I use the computer name
instead of http://some.http.address.local
<http://some.http.address.local/> , everything works fine too. I was
able to solve the problem (for the time being) by modifying the "Allow
all outbound traffic" rule with FROM: Internal and TO: Anywhere. I had
it preveoulsy as FROM: Internal and TO: External. I think my solution is
bit convulated. After reading Tom's book, I didn't want to install
Ethereal on my firewall but Network monitor has a big learning curve.
Your help is greatly appreciated.
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