Permalink Redirect WordPress Plugin

A WordPress plugin that replies a 301 permanent redirect, if requested URI is different from entry’s (or archive’s) permalink. It is used to ensure that there is only one URL associated with each blog entry.

Download
Download: Permalink Redirect Plugin 2.0 (PHP, 15.5kb, 2008-07-17)
Download: Permalink Redirect Plugin 2.0 (ZIP, 5.1kb, 2008-07-17)
Subversion Repository: svn.fucoder.com/fucoder/permalink-redirect/

Installation
Download the plugin file, and unzip the file.
Upload “ylsy_permalink_redirect.php” to your WordPress’ wp-content/plugins directory.
Activate the “Permalinks Redirect” plugin in your WordPress admin page.