Comments on: Yet Another Duplicate Content Vulnerability Hits WordPress, Movable Type Blogs (Part 2)

By: Wordpress Duplicate Content Vulnerability

Wordpress Duplicate Content Vulnerability — Wed, 24 Dec 2008 21:48:04 +0000

[...] prefer you read this post to know more. The post also gives info about fixing this duplicate content issue for Movable Type [...]

By: Nicholas

Nicholas — Mon, 13 Oct 2008 12:25:37 +0000

Hello Greg,

Thanks for your reply. I’ve realized that the best permalink structure you can choose is /%postname%/. If you later change the category names, no problem should occur.

Regards,
Nicholas

By: Greg

Greg — Thu, 07 Aug 2008 11:13:37 +0000

Hi Nicholas,

Hmm, it’s hard to tell from the little bit that you’ve described…

Note that it is possible (but not normally desirable) to wind up with two different categories or tags which have the same name but different slugs; that’s one possibility which could account for what you’re seeing.

If nothing else, you could always brute force it to redirect with 1) some mod_rewrite rules or 2) complete deletion and recreation of the post in question.

All the best,
Greg

By: Nicholas

Nicholas — Thu, 07 Aug 2008 08:14:35 +0000

Hello! I hope you can help me on this…
My permalink structure is /%category%/%postname%/.
I assign one category to every post. Recently, I have changed a category name. The links works ok, but if you access the old link (www.domain.com/old-category-name/post-name) it still works.
Webmaster tools tells me that I have duplicate content… Technically, the page with the old category name shouldn’t exist…
What can I do?

Thank you,
Nicholas

By: Greg

Greg — Wed, 30 Jan 2008 10:08:03 +0000

You’re very welcome!

All the best,
Greg

By: Jessica

Jessica — Wed, 30 Jan 2008 04:02:03 +0000

You are a mod_rewrite wiz-kid. Thanks for the tip!! I didn’t use your rules to avoid the infinite URLs problem but I was looking for a way to get WPMU to ignore a certain directory. It worked.. thanks!!

By: Avoiding Lesser Known Content Duplication Bugs

Avoiding Lesser Known Content Duplication Bugs — Sat, 15 Dec 2007 01:37:29 +0000

[...] It’s true, check it out for yourself. Thankfully, there’s an excellent article at Where Else To Put It on editing your htaccess file in order to eliminate this potential nightmare. Just imagine if a [...]

By: Martin

Martin — Sun, 14 Oct 2007 13:26:40 +0000

Hi Greg, just wanted to report that i added your code to my htaccess and everything seems to be working fine,no problems.

the previous code i had inserted caused me a cgi error when saving a post, but yours works perfectly.

thanks very much for your help!

p.s. the deny all line was something i saw suggested on another site, so im not sure how to change it. But i will look into it if i can find the site again.

cheers

Martin

By: Greg

Greg — Sat, 13 Oct 2007 20:21:18 +0000

Hi Martin,

Yes, you want the new mod_rewrite rules to fire before WP’s own rules.

One other thought: it might be worth double-checking your “Deny from all” line, as usually this would be wrapped inside something indicating what it is you want to deny access to (e.g., specific files, like .htaccess).

Best of luck!

I’m out of the office right now having some time off, so I’m afraid I’ll be scarce for the next week or so.

All the best,
Greg

By: Martin

Martin — Sat, 13 Oct 2007 14:39:46 +0000

thanks Greg, how should i insert the code? should it be at the very start of my htaccess?

my current htaccess looks likes this

RewriteEngine On
RewriteCond %{HTTP_HOST}!^www.example.com$ [NC]
RewriteRule ^(.*)$ http://www.example.com/$1 [R,L]
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

Options -Indexes
DirectoryIndex index.php index.html

Order Deny,Allow
Deny from all