Bug 500 internal server error with mod_pagespeed

Nirjonadda · Feb 10, 2016

I am getting 500 internal server error with mod_pagespeed if DBSEO are enabled.

Fillip H. · Feb 10, 2016

Hi there,

I would strongly recommend disabling mod_pagespeed as it has conflicts with the way vBulletin injects the Yahoo UI JavaScript library. It's not considered supported by our mods.

Nirjonadda · Feb 11, 2016

No, this error come with .htaccess rules. are not fixed with disabling mod_pagespeed. its happened with PHP 5.6.18

Error log: [Thu Feb 11 19:26:16.819846 2016] [core:alert] [pid 25967] [client 1.23.154.41:53115] /home/nadda/public_html/.htaccess: </IfModule> without matching <IfModule> section, referer:

If adding .htaccess rules then this error are come:

<IfModule mod_rewrite.c>
RewriteEngine On

# If you are having problems or are using VirtualDocumentRoot, uncomment this line and set it to your vBulletin directory.
RewriteBase /

# If you are having problems with the rewrite from content/ to content.php, uncomment this line to turn MultiViews off.
Options -MultiViews

RewriteCond %{HTTP_USER_AGENT} libwww-perl.*
RewriteRule .* – [F,L]

# Retrieve gamedata requests and send to new dbtech locations
RewriteRule ^arcade/gamedata/(.*) dbtech/vbarcade/media/$1 [L]

# Retrieve crossdomain requests and send to new dbtech location
RewriteRule ^crossdomain\.xml dbtech/vbarcade/crossdomain.xml [L]

# Send hardcoded pnf+ipa scores to arcade instead
RewriteCond %{QUERY_STRING} func=storeScore [OR]
RewriteCond %{QUERY_STRING} autocom=arcade [OR]
RewriteCond %{QUERY_STRING} act=Arcade
RewriteRule .* arcade.php [L,QSA]

# Reroute v3arcade liveinstaller
RewriteCond %{QUERY_STRING} do=liveinstall
RewriteCond %{REQUEST_URI} v3arcade_admin\.php

# If you renamed your admincp directory, change it here
RewriteRule .* %{DOCUMENT_ROOT}/admincpforum/arcade_admin.php?%{QUERY_STRING}&do=review&import=browse&system=v3a [L,R=301]

RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
RewriteRule ^(.+)$ dbseo.php [L,QSA]
</IfModule>

Fillip H. · Feb 11, 2016

There is no missing IfModule section that I can see, that exact .htaccess configuration works fine for me on my testing environment.

Nirjonadda · Feb 11, 2016

Are you using with PHP 5.6.18? with this .htaccess rules then this error are come.

/home/nadda/public_html/.htaccess: </IfModule> without matching <IfModule> section

Fillip H. · Feb 11, 2016

I am running Apache 2.4.18 and PHP 5.6.17 locally, no errors

Feel free to remove the IfModule tags and see if that makes a difference.

Nirjonadda · Feb 11, 2016

No, same. I have get responses from cPanel.

Hello,

Thank you for your patience. Please understand that our support for rewrite rules are very limited. I checked the /home/nadda/public_html/.htaccess and do not see any of the rules you mentioned. However, there is a file at /home/nadda/public_html/htaccess (no period) that does have the rules. The issue is that the IfModule statement has a closing IfModule, but it comes after all the rewrite rules. It should be like this:

<IfModule mod_rewrite.c>
RewriteEngine On
</IfModule>

The /IfModule was after all the rewrite rules, which is causing the error. Removing the /IfModule from the bottom and adding it as shown above removes the error, but now the 500 internal server error is showing because of too many redirects. This usually means that your rewrite rules are redirecting to each other over and over. You'll need to review the rules to determine what is causing the redirects over and over.

--
Best regards,

Seth Daughenbaugh
cPanel, Inc.
Technical Analyst

Fillip H. · Feb 11, 2016

If you have Force Forum Directory Index enabled and you're not using the forum as the index, that would be a possible reason.

Nirjonadda · Feb 11, 2016

No, I am not using Force Forum Directory Index. Its only happen with .htaccess rules.

Nirjonadda · Feb 11, 2016

Site are working with this .htaccess rules:

Code:

<IfModule mod_rewrite.c>
	RewriteEngine On
</IfModule>

	# If you are having problems or are using VirtualDocumentRoot, uncomment this line and set it to your vBulletin directory.
	RewriteBase /

	# If you are having problems with the rewrite from content/ to content.php, uncomment this line to turn MultiViews off.
	Options -MultiViews

	RewriteCond %{HTTP_USER_AGENT} libwww-perl.* 
	RewriteRule .* – [F,L]

	# Retrieve gamedata requests and send to new dbtech locations
	RewriteRule ^arcade/gamedata/(.*) dbtech/vbarcade/media/$1 [L]

	# Retrieve crossdomain requests and send to new dbtech location
	RewriteRule ^crossdomain\.xml dbtech/vbarcade/crossdomain.xml [L]

	# Send hardcoded pnf+ipa scores to arcade instead
	RewriteCond %{QUERY_STRING} func=storeScore [OR]
	RewriteCond %{QUERY_STRING} autocom=arcade [OR]
	RewriteCond %{QUERY_STRING} act=Arcade
	RewriteRule .* arcade.php [L,QSA]

	# Reroute v3arcade liveinstaller
	RewriteCond %{QUERY_STRING} do=liveinstall
	RewriteCond %{REQUEST_URI} v3arcade_admin\.php

	# If you renamed your admincp directory, change it here
	RewriteRule .* %{DOCUMENT_ROOT}/admincpforum/arcade_admin.php?%{QUERY_STRING}&do=review&import=browse&system=v3a [L,R=301]

But Site not working if add adding DBSEO .htaccess rules:

Code:

<IfModule mod_rewrite.c>
	RewriteEngine On
</IfModule>

	# If you are having problems or are using VirtualDocumentRoot, uncomment this line and set it to your vBulletin directory.
	RewriteBase /

	# If you are having problems with the rewrite from content/ to content.php, uncomment this line to turn MultiViews off.
	Options -MultiViews

	RewriteCond %{HTTP_USER_AGENT} libwww-perl.* 
	RewriteRule .* – [F,L]

	# Retrieve gamedata requests and send to new dbtech locations
	RewriteRule ^arcade/gamedata/(.*) dbtech/vbarcade/media/$1 [L]

	# Retrieve crossdomain requests and send to new dbtech location
	RewriteRule ^crossdomain\.xml dbtech/vbarcade/crossdomain.xml [L]

	# Send hardcoded pnf+ipa scores to arcade instead
	RewriteCond %{QUERY_STRING} func=storeScore [OR]
	RewriteCond %{QUERY_STRING} autocom=arcade [OR]
	RewriteCond %{QUERY_STRING} act=Arcade
	RewriteRule .* arcade.php [L,QSA]

	# Reroute v3arcade liveinstaller
	RewriteCond %{QUERY_STRING} do=liveinstall
	RewriteCond %{REQUEST_URI} v3arcade_admin\.php

	# If you renamed your admincp directory, change it here
	RewriteRule .* %{DOCUMENT_ROOT}/admincpforum/arcade_admin.php?%{QUERY_STRING}&do=review&import=browse&system=v3a [L,R=301]

	RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
	RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

	RewriteCond %{REQUEST_FILENAME} !-f
	RewriteCond %{REQUEST_FILENAME} !-d
        RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
	RewriteRule ^(.+)$ dbseo.php [L,QSA]
	
        # If you are having problems or are using VirtualDocumentRoot, uncomment this line and set it to your vBulletin directory.
        # RewriteBase /

        # If you are having problems with the rewrite from content/ to content.php, uncomment this line to turn MultiViews off.
        # Options -MultiViews

        RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
        RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

        RewriteCond %{REQUEST_FILENAME} !-f
        RewriteCond %{REQUEST_FILENAME} !-d
        RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
        RewriteRule ^(.+)$ dbseo.php [L,QSA]

Fillip H. · Feb 12, 2016

In the second quote, the DBSEO rules appear twice. Does it work if you only add them once?

Nirjonadda · Feb 12, 2016

No, not working only adding this .htaccess rules.

Code:

<IfModule mod_rewrite.c>
	RewriteEngine On
</IfModule>


	RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
	RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

	RewriteCond %{REQUEST_FILENAME} !-f
	RewriteCond %{REQUEST_FILENAME} !-d
        RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
	RewriteRule ^(.+)$ dbseo.php [L,QSA]
	
        # If you are having problems or are using VirtualDocumentRoot, uncomment this line and set it to your vBulletin directory.
        # RewriteBase /

        # If you are having problems with the rewrite from content/ to content.php, uncomment this line to turn MultiViews off.
        # Options -MultiViews

        RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
        RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

        RewriteCond %{REQUEST_FILENAME} !-f
        RewriteCond %{REQUEST_FILENAME} !-d
        RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
        RewriteRule ^(.+)$ dbseo.php [L,QSA]

Fillip H. · Feb 12, 2016

Do you have any custom rewrite rules or custom redirect rules? If so, could you please try removing them and seeing if that works?

If that also does not work, you may have a conflict in your URL formats. Are any URL formats using a "Custom" rule format? If so, could you please try reverting them to one of the built-in options and seeing if that works?

Nirjonadda · Feb 12, 2016

No, I am not using any custom rewrite rules or custom redirect .

No, I am not using any URL formats using a "Custom" rule format.

Only error with this rules:

RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
RewriteRule ^(.+)$ dbseo.php [L,QSA]

# If you are having problems or are using VirtualDocumentRoot, uncomment this line and set it to your vBulletin directory.
# RewriteBase /

# If you are having problems with the rewrite from content/ to content.php, uncomment this line to turn MultiViews off.
# Options -MultiViews

RewriteCond %{REQUEST_URI} !(admincpforum/|dbseocp/|modcpforum/|cron|mobiquo|forumrunner|api\.php|cometchat/|extensions/mobileapp/)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ dbseo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincpforum|dbseocp|modcpforum|clientscript|cpstyles|images|cometchat|extensions|mobileapp)/
RewriteRule ^(.+)$ dbseo.php [L,QSA]

Fillip H. · Feb 13, 2016

From the looks of things, this might be the same issue as http://www.dragonbyte-tech.com/f241/rewriterule-cannot-compile-regular-expression-php-19725/

I can't tell what version of Apache you are running, but we are running 2.4.18 without issue.

Nirjonadda · Feb 13, 2016

I am using Apache 2.4.18 with php 5.6.18

Fillip H. · Feb 14, 2016

Do you have the option to downgrade to 5.6.17? From what I can tell, this issue only started arising with that version, leading me to believe there's a critical flaw in that version of PHP.

Nirjonadda · Feb 14, 2016

No, cPanel are not Support downgrade to 5.6.17. Are you edited my .htaccess rules and config.php files?

Fillip H. · Feb 14, 2016

I did experiment with commenting out one of the lines, yeah.

Nirjonadda · Feb 14, 2016

Then are you experience that what are happened with this rules?

Bug 500 internal server error with mod_pagespeed

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

Fillip H.

Nirjonadda

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