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Redirect loop and LimitInternalRecursion error message.

Gunjan — Thu, 02 Sep 2010 11:06:37 +0000

Most of the time we receive following redirect loop error message.

Request exceeded the limit of 10 internal redirects due to probable configuration error. Use ‘LimitInternalRecursion’ to increase the limit if necessary. Use ‘LogLevel debug’ to get a backtrace
To avoid above error message simply use following code in .htaccess file.

RewriteCond %{ENV:REDIRECT_STATUS} 100

RewriteRule .* - [L]

PHP Parse error: syntax error, unexpected T_STRING?

Gunjan — Fri, 25 Dec 2009 05:26:24 +0000

If you receive following error in the error logs

” PHP Parse error: syntax error, unexpected T_STRING”
Then you can add following line in the .htaccess file

php_flag short_open_tag X

If your server is SuExec enabled then you can use following code in php.ini file
short_open_tag = X

How to stop forum get injected from hackers?

Gunjan — Fri, 11 Dec 2009 08:49:44 +0000

In now a days its very easy to inject any forum.You can secure your forum by using following code in your .htaccess

#spam bots SetEnvIfNoCase User-Agent “^EmailSiphon” bad_bot SetEnvIfNoCase User-Agent “^EmailWolf” bad_bot SetEnvIfNoCase User-Agent “^ExtractorPro” bad_bot SetEnvIfNoCase User-Agent “^CherryPicker” bad_bot SetEnvIfNoCase User-Agent “^NICErsPRO” bad_bot SetEnvIfNoCase User-Agent “^Teleport” bad_bot SetEnvIfNoCase User-Agent “^EmailCollector” bad_bot #plagarism bot SetEnvIfNoCase User-Agent “^TurnitinBot” bad_bot #IP bot SetEnvIfNoCase User-Agent “^NPBot” bad_bot #Worm sign SetEnvIfNoCase User-Agent “^LWP::Simple” bad_bot SetEnvIfNoCase User-Agent “^lwp-trivial” bad_bot SetEnvIfNoCase User-Agent “^lwp” bad_bot SetEnvIfNoCase User-Agent “^LWP” bad_bot #Worm sign Order Allow,Deny Allow from all Deny from env=bad_bot

How to parse php pages in html page?

Gunjan — Sun, 06 Dec 2009 18:51:49 +0000

You can use following code in .htaccess file to parse php pages in html pages

RemoveHandler .html .htm
AddType application/x-httpd-php .php .htm .html

To can check above code is working ir not? by creating one test page with following code

root@gunjan[~]#pico test.html

< html>
< head>
< body>
< h1>
< ?php echo "WORKING FINE!"; ?>
< /h1>
< /body>
< /html>

Redirect code from http to https by using .htaccess?

Gunjan — Mon, 23 Nov 2009 02:47:20 +0000

Your can redirect all http (Non-secure) URL to https by using following code in .htaccess file.

RewriteEngine on
Options +FollowSymLinks
RewriteCond %{SERVER_PORT} !^443$
RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [L,R]

Redirect code from https to http?

Gunjan — Mon, 23 Nov 2009 02:42:18 +0000

Your can redirect all https (Secure) URL to http by using following code in .htaccess file.

RewriteEngine on
Options +FollowSymLinks
RewriteCond %{SERVER_PORT} !^80$
RewriteRule ^.*$ http://%{SERVER_NAME}%{REQUEST_URI} [L,R]

Disable directory listing for folders by using .htaccess?

Gunjan — Thu, 19 Nov 2009 22:45:45 +0000

To disable the Directory listing for folders you need to create the .htaccess file under the each an every folder under which you want to disable the Directory listing and insert the following code in .htaccess file.

————
Options -Indexes
————-

htaccess pcfg_openfile unable to check htaccess file (403 error)

Gunjan — Tue, 17 Nov 2009 20:05:32 +0000

If you are receiving 403 error message after browsing your domain than check the Apache error logs.

root@admin[~]tail -f /usr/local/apache/logs/error_log

[Tue Nov 17 19:38:32 2009] [crit] [client 192.168.0.2] (13)Permission denied: /home/admin/public_html/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable

As per above logs it seems that the nobody user is not getting read and executing permission upto any of that folder.So make sure that the public_html and the subdomain are set read and executing permission for nobody user.

Stop hotlinking from outside domains by using .htaccess?

Gunjan — Fri, 06 Nov 2009 04:18:20 +0000

How to stop hotlinking from outsides domains.

You can stop the hotlinking from outsider domain by using following rule in .htaccess

RewriteEngine On
RewriteCond %{HTTP_REFERER} ^http://(.+.)?domain.com/ [NC,OR]
RewriteCond %{HTTP_REFERER} ^http://(.+.)?domain1.com/ [NC,OR]
RewriteCond %{HTTP_REFERER} ^http://(.+.)?domain2.com/ [NC]
RewriteRule .*.(jpe?g|gif|bmp|png)$ /images/nohotlink.jpe [L]

You can also display a 403 Forbidden Error page instead of an image (nohotlink.jpe)

Replace last line on above code with the following code

RewriteRule .*.(jpe?g|gif|bmp|png)$ – [F]

WordPress default .htaccess file?

Gunjan — Fri, 06 Nov 2009 03:39:14 +0000

The default wordpress .htaccess file code is as follows

# BEGIN wordpress

RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_fileNAME} !-f
RewriteCond %{REQUEST_fileNAME} !-d
RewriteRule . /index.php [L]

# END wordpress