Help with strange web server problem

Charles Swiger cswiger at
Mon Feb 13 11:41:41 PST 2006

On Feb 13, 2006, at 7:58 AM, Jerry Bell wrote:
> It's hit or miss, but the first time someone visits the web site,  
> they get
> a "server not found" page.  On hitting refresh, they get the page - no
> problems.  If I wait a while and try again, I get the same problem.

Path MTU problem?

> The problem appears to be something in the initial communication  
> with the
> web server.  Using tcpdump, I can see that the PC connects to the web
> server and sends the GET request, but the server closes the connection
> abruptly.  Comparing that flow to a normal session, I see that  
> there are
> some extra packets between the initial SYN and the sending of the GET
> phrase that do not exist during a successful session.

The details would help.  :-)  Or you could tell us what the server is  
so we could try hitting it ourselves...


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