Re: php(5)-cgi + Apache2 + fastcgiexternalserver = lost hair

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That's interesting Tony. Didn't know you could do that. Are you saying you want to run PHP as an Apache module, and the CLI version remotely?

If so, why would you want to do that?

Regards

Keith

On Tue, 24 Jul 2007, Tony Shadwick wrote:

To: Keith Roberts <keith@xxxxxxxxxxxx>
From: Tony Shadwick <tshadwick@xxxxxxxxxxxxxxxxx>
Subject: Re:  php(5)-cgi + Apache2 + fastcgiexternalserver = lost
     hair

Yup. Build php as a cgi binary, and then start it with -b flag. You can choose the port you want to run it on. Then use fastcgiexternalserver (or equivalent) to connect to it.

Keith Roberts wrote:
AFAIR I have never heard of hosting apache and php on seperate machines. I don't even know if you can connect to php remotely, say like MySQL on a specified port?

Kind Regards

Keith Roberts

On Tue, 24 Jul 2007, Paul Blondé wrote:

To: php-install@xxxxxxxxxxxxx
From: Paul Blondé <jpb@xxxxxxxx>
Subject: RE: php(5)-cgi + Apache2 + fastcgiexternalserver = lost
     hair

wait...are you saying that you are hosting your PHP on one machine, and your
Apache on another?

Does Apache+PHP support remoting like that?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Paul Blondé


-----Original Message-----
From: Tony Shadwick [mailto:tshadwick+php.net@xxxxxxxxxxxxxxxxx]
Sent: Tuesday, July 24, 2007 11:02 AM
To: php-install@xxxxxxxxxxxxx
Subject: php(5)-cgi + Apache2 + fastcgiexternalserver = lost
hair


Okie.  I've been googling for days on this now, and I've come across
several PHP bug reports that basically say this is a configuration
error, and not a php bug.  If that's true, I seriously need help.

On my web server box, I'm running Apache2.1, and in my httpd.conf file I
have this:

FastCGIExternalServer  /path/to/stub/fcgi-bin/php -host php-host:9000

Then in my Includes/site.conf (individual sites each have their own
config file), I have this:

AddHandler php-cgi .php
Action php-cgi /fcgi-bin/php
ScriptAlias /fcgi-bin/php ScriptAlias /fcgi-bin/php
/path/to/stub/fcgi-bin/php

Then I have a directive that adds +ExecCGI to the user's directory. So
far so good.  Restart apache.

On the php-host box, I've compiled:

php5-5.2.3          PHP Scripting Language (Apache Module and CLI)

I start it using php-cgi -b 9000.  The port accepts connections just
fine.  When I go to browse to a simple script on my web host that has:

<?

phpinfo();

?>

I get "No input file specified." on screen, and in the logs I get what
oddly appears to be a 404 message:

172.16.12.2 - - [23/Jul/2007:22:27:12 -0500] "GET /phpinfo.php HTTP/1.1"
404 25 "-" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en)
AppleWebKit/419.2.1 (KHTML, like Gecko) Safari/419.3"

Except it's really not a 404.  If I get rid of the php handler, it
returns the text of the script just fine.

I've googled this mess forwards and backwards, and what I come across is
that there appears to be some sort of a tiff between PHP and web
servers, where web servers usually pass along the environment variable
SCRIPT_NAME, whereas PHP wants SCRIPT_FILENAME in order to determine
that it is running in cgi mode (I think?).  I've done everything I can
think of to facilitate that.  I've adjusted the relavent setting in
php.ini on the php host

cgi.fix_pathinfo=1

Restart the php-cgi binary, does no good. I've tried making mod-rewrite changes on apache2 to force SCRIPT_FILENAME to be assigned, that doesn't
work.  I've tried manually assigning a SCRIPT_FILENAME environment
variable on the shell that I'm executing php-cgi from. That too fails.

Out of desperation, I finally ran tcpdump -w ~/phpdump.txt -i em0 port
9000 on the php-cgi host.  I won't bore you with everything that
wireshark says about it, rather, the most relevant part gets revealed by
strings I think:

# strings ~/phpdump.txt
REDI
SCRIPT_NAME/fcgi-bin/
Status: 404
X-Powered


A few things stand out to me here:  number one, SCRIPT_NAME appears to
be getting sent, 2 it looks like php-cgi is the one returning 404, not
the web server, and finally....this is getting a bit truncated, isn't
it?  I'd fully expect to find the full X-Powered header there, and if
it's going to say /fcgi-bin/, I'd expect to find /fcgi-bin/php.  and
REDI....?

Anyone have an idea what I can do to fix this up? The file DOES exist.
 It'd currently chmod 777 to make sure it's not a permissions thing
(it's just phpinfo at this point anyway....).  The traffic *is* being
sent to port 9000 on the php-cgi host.  What else can I do?

Tony Shadwick
OSS Solutions




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