Re: IIS 6 Ports Stop Responding

From: David Wang [Msft] (someone_at_online.microsoft.com)
Date: 03/07/05 

Date: Mon, 7 Mar 2005 09:52:51 -0800

Turn off IE's "Show friendly HTTP Errors" feature to see the actual return
code. Also look in %windir%\System32\LogFiles\HTTPErr\*.log and
%windir%\System32\LogFiles\W3SVC#\*.log to see if the request made it to
IIS.

If the requests did not show up in those logs (either as a failed connection
or failed request), then the problem is not likely an IIS issue since the
request never got to IIS.

The fact that a port is listening on a server does NOT mean it is remotely
accessible by a client -- firewalls or other networking device in between
the client and server can certainly alter behavior. For example, when a
server has a firewall blocking port 80, you will see port 80 listening on
the server but the client returns "Cannot find server or DNS Error" from
everywhere, including the server itself. 

-- 
//David
IIS
http://blogs.msdn.com/David.Wang
This posting is provided "AS IS" with no warranties, and confers no rights.
//
"RC" <rcrago-nospam@pjc.edu> wrote in message
news:OWGSp5yIFHA.1280@TK2MSFTNGP09.phx.gbl...
We have recently installed a W2k3 server and moved our websites from a W2k
server.  Under IIS 6 we occasionally have either port 80 or 443 to stop
responding (sometimes both but usually only one).  When this happens the
effected port does not respond neither on the box or externally.  IE returns
the error "Cannot find server or DNS Error".  Viewing the offered ports on
the box shows that the effected port is listening.  Recycling the website
clears the problem.  I have used the IISDump utility to capture an instance
of this problem for port 80 and will send it if someone knows how to
interpret it(28 MB) OR point me to the tools to make sense of the DMP files.
Any help is appreciated.
Ralph Crago

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