Re^2: mod_perl configuration of Apache2

Thanks for the reply.

The machine that I was working on is at work and I will not have access to it again until Monday. Thus, I am trying to set up mod_perl on a home machine. Hopefully what I learn at home this weekend will help me at work on Monday morning.

I don't know if the typo was present in apache2.conf or if it was introduced as I was working on my posting. I'll check that early Monday. By following the provided guidance I added the lines to my home machine. This is a machine that I tried to set up mod_perl on about a year ago (unsuccessfully) and therefore I don't have a "clean install" at home.

At home I am getting perl execution, but it is CGI perl and not mod_perl. I know this due to a modified version of the program from page 76 of "MySQL and Perl for the Web" by Paul DuBois (ISBN 0-7357-1054-6). The test program is:

#!/usr/bin/perl -w
# FILE: cgi_or_mod-perl.pl

use strict;
use warnings;

use CGI qw(:standard);
print header(), start_html ("CGI or mod-perl test");

print "If 'GATEWAY_INTERFACE = CGI/1.1' then regular CGI.<BR>";
print "If 'GATEWAY_INTERFACE - CGI-Perl/1.1' then mod-perl.<BR>";
print "<BR>";

print "========== TESTING ABILITY OF A PERL SCRIPT TO ACCESS ENVIRONME
+NT VARIABLES ========<BR>";
print "REMOTE_ADDR = $ENV{REMOTE_ADDR}<BR>";
print "REMOTE_PORT = $ENV{REMOTE_PORT}<BR>";
print "HTTP_REFERER = $ENV{HTTP_REFERER}<BR>";
print "<BR>";

print "========== FULL DUMP OF ENVIRONMENT VARIABLES ==========<BR>";
print map { "$_ = $ENV{$_}<BR>\n"} sort(keys(%ENV));
print "<BR>";

print end_html();

exit (0);
[download]

The test code worked well years ago when I used it to set up mod_perl on Debian machines (that also was a pain to get the mod_perl to run).

My current status is:

WORK COMPUTER - Current status is a mystery but the above discovered typo is a possibility. I'll know more Monday morning.

HOME COMPUTER - When a browser hits a perl script the script will execute and the "expected" results will be returned. BUT, THIS WAS CGI PERL AND NOT MOD_PERL. The cause of this is still a mystery and I am working on it.

Thanks,
Bruce

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Re^3: mod_perl configuration of Apache2 by Bruce32903 (Scribe) on Dec 12, 2009 at 22:22 UTC
When I run the script from my previous posting I get the following: If 'GATEWAY_INTERFACE = CGI/1.1' then regular CGI. If 'GATEWAY_INTERFACE - CGI-Perl/1.1' then mod-perl. ========== TESTING ABILITY OF A PERL SCRIPT TO ACCESS ENVIRONMENT VARI +ABLES ======== REMOTE_ADDR = 127.0.0.1 REMOTE_PORT = 45469 HTTP_REFERER = ========== FULL DUMP OF ENVIRONMENT VARIABLES ========== DOCUMENT_ROOT = /var/www GATEWAY_INTERFACE = CGI/1.1 HTTP_ACCEPT = text/xml,application/xml,application/xhtml+xml,text/html +;q=0.9,text/plain;q=0.8,image/png,/;q=0.5 HTTP_ACCEPT_CHARSET = ISO-8859-1,utf-8;q=0.7,*;q=0.7 HTTP_ACCEPT_ENCODING = gzip,deflate HTTP_ACCEPT_LANGUAGE = en-us,en;q=0.5 HTTP_CONNECTION = keep-alive HTTP_HOST = 127.0.0.1 HTTP_KEEP_ALIVE = 300 HTTP_USER_AGENT = Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv: +1.8.1.6) Gecko/20070802 SeaMonkey/1.1.4 MOD_PERL = mod_perl/2.0.2 MOD_PERL_API_VERSION = 2 PATH = /usr/local/bin:/usr/bin:/bin QUERY_STRING = REMOTE_ADDR = 127.0.0.1 REMOTE_PORT = 45469 REQUEST_METHOD = GET REQUEST_URI = /perl/cgi_or_mod-perl.pl SCRIPT_FILENAME = /var/www/perl/cgi_or_mod-perl.pl SCRIPT_NAME = /perl/cgi_or_mod-perl.pl SERVER_ADDR = 127.0.0.1 SERVER_ADMIN = webmaster@localhost SERVER_NAME = 127.0.0.1 SERVER_PORT = 80 SERVER_PROTOCOL = HTTP/1.1 SERVER_SIGNATURE = Apache/2.0.55 (Ubuntu) PHP/4.4.2-1build1 mod_perl/2.0.2 Perl/v5.8.7 Se +rver at 127.0.0.1 Port 80 SERVER_SOFTWARE = Apache/2.0.55 (Ubuntu) PHP/4.4.2-1build1 mod_perl/2. +0.2 Perl/v5.8.7 [download] Based upon the DuBois text I conclude that mod_perl is installed but not being used when the perl code is executed. Bruce	[reply] [d/l]
Re^4: mod_perl configuration of Apache2 by gmargo (Hermit) on Dec 13, 2009 at 11:56 UTC
The DuBois book is based on `mod_perl1` so not everything is applicable to `mod_perl2`. According to this Apache documentation, http://perl.apache.org/docs/2.0/user/porting/compat.html#Special_Environment_Variables, the `GATEWAY_INTERFACE` environment variable can no longer be used to determine if mod_perl in use. Instead it says to use the `MOD_PERL` environment variable.	[reply] [d/l] [select]
Re^4: mod_perl configuration of Apache2 by Bruce32903 (Scribe) on Dec 13, 2009 at 12:13 UTC
Thank you gmargo. That seems to put an end to my problem. Making this work was so much trouble that I was starting to wonder if I was trying to fix something that wasn't broken. The bad news is that I was. The good news is that you put an end to my suffering and I can move forward knowing that I will have "good" mod_perl code and not "in need of slight rework" CGI code. Thank you, Bruce	[reply]