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#12964 How to get a 404 with a string like this ?yrvn

Posted in ‘Admin Tools for Joomla! 4 & 5’
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Environment Information

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Admin Tools version
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Latest post by nicholas on Monday, 16 July 2012 08:22 CDT

Sunday, 15 July 2012 18:45 CDT

vegasledscreens
Mandatory information about my setup:

Have I read the related troubleshooter articles above before posting (which pages?)? Yes
Have I searched the tickets before posting? Yes
Have I read the documentation before posting (which pages?)? Yes
Joomla! version: 1.5.26
PHP version: 5.2.17
MySQL version: 5.0.17
Host: (optional, but it helps us help you)
Admin Tools version: Godaddy hosting control center

Description of my issue: My domain gets many incoming visitors from sites with a link that normally doesnt exist and it doesnt send it to my normal homepage like www.mypage.com but to www.mypage.com/?yrvn=walmart-4-dollar-drugs-list&id=4355

The thing is that the link doesnt exist but it shows my homepage and it doesnt go to a 404. How can i manage to get a 404 when somebody enters my site through an external link with the variable mypage.com/?yrvn= and block this and send it to a 404??

Richard

Monday, 16 July 2012 02:20 CDT

nicholas
Hello Richard,

People, just use Google when you have a question :) Searching for ".htaccess redirect URL based on query" I came the perfect solution. All you need is a .htaccess snippet reading 
RewriteCond %{QUERY_STRING} ^yrvn=
RewriteRule .* - [R=404,L]

The first line traps only URLs where the query string begins with ?yrvn=. The second line tells Apache that as long as the first line's conditions are fulfilled, send out a 404 error and stop processing rules.

If you're using the .htaccess Maker feature of Admin Tools you must add this to the "Custom .htaccess rules at the top of the file" section, then click on "Save & Create .htaccess".

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

Monday, 16 July 2012 05:10 CDT

vegasledscreens
Hi Nicolas,

Thank you very much for your reply. Yes you are right actually before you answered this post I figured out how to do it, and I placed the following into my htaccess:

RewriteCond %{QUERY_STRING} (^|&)yrvn=
RewriteRule (.*) - [L,R=404]


Now it gives me a 404 hehehe...

Thanks a lot...

Greetings,


Richard
Edited by vegasledscreens on 2012-07-16 05:10 CDT

Monday, 16 July 2012 08:22 CDT

nicholas
You're welcome :)

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

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