RE: Instant Messenger Blocking
- From: "Mark Warren" <mewarren123@xxxxxxxxx>
- To: isalist@xxxxxxxxxxxxx
- Date: Mon, 2 May 2005 15:00:07 -0600
Still having problems with Macintosh authentication. The Macintosh
clients get an HTTP 407 Proxy Authentication Required. Access to the Web
Proxy service is denied (12209).
I have manually typed the IP number of the ISA server on the address line
with port 8080 and connecting Normal selected. It does ask for a username
and password. Is this a Domain username and password? There must be
something I'm missing here.
Mark Warren
> We used Macs with ISA2000, but we had to insist they use Internet
> Explorer, and manually put in the proxy settings on each computer. So,
> enter the host name of your ISA server and port 8080 (the default port)
> into the proxy settings tab of Internet Explorer on the Macs.
>
> If that isn't your problem, then we'll need more information from you on
> what is/isn't happening.
>
> -----Original Message-----
> From: Mark Warren [mailto:mewarren123@xxxxxxxxx]=20
> Sent: Monday, May 02, 2005 11:06
> To: [ISAserver.org Discussion List]
> Subject: [isalist] Instant Messenger Blocking
>
> http://www.ISAserver.org
>
> I wrote this last week and received a response from Dan Ball saying that
> I
> was on the right track with the HTTP Redirector Filter. Is there any
> other way that I can approach this. My issue is still with Macintosh
> clients and I am running ISA Server 2000. The following is my earlier
> post:
>
> "I am writing for a public school that is wanting to block various
> instant
> messengers. We are a combination PC and Macintosh environment running
> one
> ISA server with Web Proxy, Firewall, and Routing and Remote Access
> installed. I read the article that Thomas Shinder submitted on How to
> Block Dangerous Instant Messengers Using ISA Server. I am focusing
> particularly on MSN Instant Messenger as it appears to be the biggest
> problem. I performed the steps listed to block it, but didn't find any
> success until I configured the HTTP Redirector Filter. This stopped MSN
> Messenger, but presented problems with my Macintosh clients connecting
> to
> the Internet as apparently ISA looks at them as unauthenticated users.=20
> When they tried to authenticate, they still couldn't. Is there
> something
> else I can try, or is there a particular configuration that I need to do
> on the Macintosh side. PC's were fine."
>
> Thanks,
>
> Mark Warren
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