Dear all i created a rule that allow authenticated users internet access and all computers are Proxy clients also thier Default Gateway is set to internal ISA server IP (SecureNAT). in this situation no one can view microsoft.com websiters (just this domain):
Error Code 11001: Host not found Background: This error indicates that the gateway could not find the IP address of the website you are trying to access. This is usually due to a DNS-related error. Date: 6/7/2009 2:15:57 PM [GMT] Server: isa Source: DNS error
and all sites are viewable. when i clear proxy ip address from IE this site (microsoft.com) is opend. when i check isa server logging just 3 log apear for this site:
Denied Connection ISA 6/7/2009 5:45:57 PM Log type: Web Proxy (Forward) Status: 12209 The ISA Server requires authorization to fulfill the request. Access to the Web Proxy filter is denied. Rule: Internet Access Full Time Source: Internal (192.168.1.250) Destination: External (192.168.1.2:8080) Request: GET http://support.microsoft.com/ Filter information: Req ID: 09811695; Compression: client=No, server=No, compress rate=0% decompress rate=0% Protocol: http User: anonymous
Failed Connection Attempt ISA 6/7/2009 5:45:57 PM Log type: Web Proxy (Forward) Status: 5 Access is denied. Rule: Internet Access Full Time Source: Internal (192.168.1.250) Destination: External (192.168.1.2:8080) Request: GET http://support.microsoft.com/ Filter information: Req ID: 09811696; Compression: client=No, server=No, compress rate=0% decompress rate=0% Protocol: http User: anonymous
Failed Connection Attempt ISA 6/7/2009 5:45:57 PM Log type: Web Proxy (Forward) Status: 11001 No such host is known. Rule: Internet Access Full Time Source: Internal (192.168.1.250) Destination: External (192.168.1.2:80) Request: GET http://support.microsoft.com/ Filter information: Req ID: 09811697; Compression: client=No, server=No, compress rate=0% decompress rate=0% Protocol: http User: FARHANG\ahmadi
I set DNS configuration on ISA NICs same as on your suggestion site. but my problem doesn't resolve. as i said this problem is just for microsoft.com not any another site and when i clear proxy settings on the IE everythings is OK. here is error displayed in IE while try to browse www.microsoft.com
Explanation: The IP address for the website you requested could not be found.
Try the following: Refresh page: Search for the page again by clicking the Refresh button. The timeout may have occurred due to Internet congestion. Check spelling: Check that you typed the Web page address correctly. The address may have been mistyped. Access from a link: If there is a link to the page you are looking for, try accessing the page from that link. If you are still not able to view the requested page, try contacting your administrator or Helpdesk.
Technical Information (for support personnel) Error Code 11001: Host not found Background: This error indicates that the gateway could not find the IP address of the website you are trying to access. This is usually due to a DNS-related error. Date: 6/10/2009 5:41:02 AM Server: isa Source: DNS error
> ------------------------------------------------------------------ this is nslookup output, but IE and also Mozilla cannot open microsoft.com in proxy mode. i'm dizzy.please help me.
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All Forums >> [ISA 2006 Firewall] >> Access Policies >> microsoft.com cannot open 
microsoft.com cannot open - 
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