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How to fix IIS 6.0 "service unavailable" ?

Posted on 2010-08-19
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Last Modified: 2012-05-10
Hello Experts:

I am running Window 2003 Standard 64 bit with Service Pack 2 and IIS 6.0.  I had a customer to call in and tell me they could not access my web site and they were getting a Service Unavailable.  I have rebooted the server serveral times.  The Event Logs are clean with no errors.  The default app pool is running.  I have done a iisreset-but still no luck in getting the site to come up.  Any ideas are welcomed
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Question by:huntersp3
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by:bouscal
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Find out what the specific error number that the client is getting.  A 400 (403,404, etc) means the issue is on the client end, a 500 error would mean it's on your end.  
Is there a firewall running on the server and if so are ports 80 & 443 open for access?
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by:huntersp3
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I am currently at home and have tried my site myself and I am getting a blank page with service unavailable.  ports 80 and 443 are open and have been forever.  The only thing I have done to the server is to the weekly microsoft updates.  I am not sure how long the site has been down.
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by:bouscal
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select the 'more details' link to find out which error # you're getting.  It could be a server issue or it might even be a DNS issue.
Have you tried to use ping or tracert from a command prompt?
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by:huntersp3
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I have ran the tracert and the results are below:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\home>tracert www.nationalsteelerection.com

Tracing route to www.nationalsteelerection.com [63.147.95.148]
over a maximum of 30 hops:

  1     2 ms     2 ms     2 ms  192.168.1.254
  2    22 ms    22 ms    21 ms  68.208.248.2
  3    24 ms    24 ms    23 ms  65.14.182.137
  4    25 ms    24 ms    25 ms  44.san-francisco-21-22rs.ca.dial-access.att.net
[12.81.72.44]
  5    24 ms    24 ms    24 ms  65.14.182.126
  6    26 ms    29 ms    29 ms  63.147.95.209
  7    34 ms    28 ms    29 ms  63.147.95.242
  8    26 ms    24 ms    25 ms  mail.nationalsteelerection.com [63.147.95.147]
  9    33 ms    33 ms    31 ms  63.147.95.148

Trace complete.

C:\Users\home>

Also, it is a literal blank page with Service Unavailable in the right hand corner of the screen.  This is nothing else to click on.
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by:Andrew Hancock (VMware vExpert / EE MVE)
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any event log errors?
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huntersp3 earned 0 total points
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I am going to check with my ISP tomorrow and see if they have made a dns change on my public IP.  I can type in mail.nationalsteelerection.com and the site comes up.
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by:Andrew Hancock (VMware vExpert / EE MVE)
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that website works here as well in the UK!
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by:bouscal
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The page that is coming up is housed on your server so it's not a DNS issue.

Should the default page be a basic html file or asp or jsp?
Does the IIS admin show that the server is defaulting to the correct page?
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by:shalabhsharma
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Hello

The reason behind it the application pool is stopped or it a crashing while serving the application process what can you to create a new application pool for the website and see if it works also if the site is ASP.NET 2 grant the network service permission - Modify (Inherited)
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