[THIN] Re: Cannot connect to Citrix server from behind an ISA proxy

  • From: george.wasgatt@xxxxxxxxxxxx
  • To: thin@xxxxxxxxxxxxx
  • Date: Tue, 10 Jun 2003 11:28:54 -0400

Thank you Paul, Jim and Adam.  As you suspected when I tried to connect to
another site running FP3, a new client and Nfuse 1.7 under CSG I was able to
connect through the proxy server.

-----Original Message-----
From: adamadz [mailto:adz@xxxxxxxxxxx]
Sent: Monday, June 09, 2003 11:28 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Cannot connect to Citrix server from behind an ISA
proxy


This is a known problem with FR2 and the ICA clients that are bundled
with it.  Any proxy server using NTLM authentication is impacted by this
bug.  Upgrading to FR3 and the latest clients will resolve the issue.

-adamadz

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of george.wasgatt@xxxxxxxxxxxx
Sent: Monday, June 09, 2003 3:59 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Cannot connect to Citrix server from behind an ISA proxy



We recently were asked to install a proxy server in our network.  We
chose the M$ ISA server.  Initial tests show that we can no longer
connect to Citrix servers over the Internet from behind the ISA server.
We know the problem is in the ISA server because when we drop the proxy
settings from IE we connect just fine.  Here is the error message IE
gives when we try launching published applications from the NFUSE web
site:

Cannot connect to the Citrix Metaframe server.
Proxy connection failed: The configured proxy server refused to
establish a
conection.      

Note that I can telnet to the site using the external IP address on port
1494.  There are no authentication requirements on the ISA server (and
people can surf just fine through it).  The template.ica file on the
NFUSE server has the proxytype=auto entry in it.  Citrix technical
support gave me plenty of things to check but nothing has panned out so
far, including trying to connect using the full ICA client.  Does anyone
on this list have an ISA proxy server running with Citrix?
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Designed to facilitate efficient resolution of your technical server-based 
questions, issues and incidents, technical support is a few mouse-clicks away: 
you submit your incident-specific support requests via our online support 
helpdesk, our certified engineers resolve them while you monitor the progress, 
and your systems get back to 99.9% up-time in no time.
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