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From Jitesh Verma <jitesh.ve...@gmail.com>
Subject Re: Help reqd. for httpd-2.4.2
Date Thu, 11 Oct 2012 07:09:36 GMT
Jeff,
We tried LogLevel trace8. It indicates "Response was sent with status 200".
But we are not sure whether the response packet was handed over to TCP/IP
statck properly. We are puzzled. We need to double check if something is
wrong with the network settings of our box itself.

Thanks,
Jitesh

On Wed, Oct 10, 2012 at 7:54 PM, Jitesh Verma <jitesh.verma@gmail.com>wrote:

> Hi Jeff,
> Thanks for your reply.
> I had added only the first 8 modules in httpd.conf. Remaining modules were
> added later only when I started facing this problem. Reducing the number of
> modules back to 8 does not make any difference with respect to this issue.
> With these 8 modules httpd worked fine with port 80. The problem started
> when I tried adding additional ports. Adding more ports is need of the
> hour. I can not escape it. I have run strace with "follow the fork" option
> (rather than single process). There are only 4 processess to follow. strace
> output did not help. It does not indicate any error condition as such. I
> can make it run as a single process by running httpd with -X option in
> foreground. But I am not sure whether that is going to help. Anyway, I will
> try that.
>
> Thanks,
> Jitesh
>
>  On Wed, Oct 10, 2012 at 6:47 PM, Jeff Trawick <trawick@gmail.com> wrote:
>
>>  On Wed, Oct 10, 2012 at 7:55 AM, Jitesh Verma <jitesh.verma@gmail.com>
>> wrote:
>> > Hi List,
>> > We have ported httpd-2.4.2 to a network embedded box running Linux on
>> Xscale
>> > hardware. We have two modules of our own to handle XML requests from our
>> > Applets. We have added all the 80 odd .so modules (that get built with
>> > default "configure" settings) in httpd.conf.
>> > We are able to access the box's GUI/Applets with "Listen 80" directive
>> in
>> > the httpd.conf.
>> > However, when we add another directive "Listen 9000" to httpd.conf,
>> httpd
>> > does not respond to HTTP request sent to port 80. The following requests
>> > from Internet Explorer fails to get any response from httpd:
>> > http://192.168.0.1
>> > http://192.168.0.1:80 <http://192.168.0.1/>
>> > http://192.168.0.1:9000
>> >
>> > Wireshark packet trace indicates that the request packet is correctly
>> sent
>> > to TCP port 80 when request http://192.168.0.1 is sent from browser.
>> > However, the outgoing packet is missing from the packet trace. It seems
>> > httpd did not generate any response (not even "File not found"
>> response).
>> > "netstat -tnlp" command shows httpd listening on both TCP port 80 and
>> 9000.
>> > /var/log/access_log indicates that the incoming packet reached httpd.
>> > Gateway/firewall data indicates that both TCP ports 80 and 9000 are
>> open in
>> > both the directions (incoming and outgoing).
>> > The moment additional "Listen 9000" directive is removed from
>> httpd.conf,
>> > httpd starts working fine (starts serving http://192.168.0.1 request).
>> > We have enabled and configured "debugging" and "loggers" modules. Still,
>> > /var/log/error_log and /var/log/messages do not show any error or
>> warning.
>> >
>> > We thought adding another "Listen" directive to httpd.conf is a child's
>> > play, but it seems to be a humongous task.
>> > Are we missing something? Am I doing something wrong?? Is it a bug???
>> Can
>> > someone help in this forum? How to debug this issue?
>> >
>> > Please find attached httpd.conf and configure wrapper script
>> > (configure.wrapper) used for configuring and building httpd and its
>> > components.
>> >
>> > Thanks,
>> > Jitesh
>>
>> users@httpd.apache.org is a better mailing list for this.
>>
>> A few things to start with...
>>
>> Get unnecessary modules out of the configuration to simplify
>> logging/potential problems.
>> See what is logged with LogLevel trace8.
>> Configure the MPM to use a single child process to handle requests,
>> and run strace against that.
>>
>> --
>> Born in Roswell... married an alien...
>> http://emptyhammock.com/
>>
>
>

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