Jeremy Pry

By default, WordPress Multisite uses certain rewrite rules for file uploads. This leads to a URL that doesn’t reflect the exact location of your files on the server. This plugin disables that functionality.
Note: This plugin is extremely simple in purpose. It requires additional setup before it can be used with most Multisite Networks.
If your Multisite was initially created using WordPress 3.5 or later, then you do not need this plugin
<h3>Before Use</h3>
This plugin is very specific in purpose. In order to use it, you will need to follow some steps first:
<ol>
<li>Move your images from <code>/wp-content/blogs.dir/SITENUM/files/</code> to <code>/wp-content/uploads/sites/SITENUM/</code>. <code>SITENUM</code> corresponds to the ID of each of your sub-sites.</li>
<li>Modify the database for each site. I recommend using <a href="http://interconnectit.com/products/search-and-replace-for-wordpress-databases/" rel="nofollow ugc">this awesome script</a> (just don’t forget to delete it when you’re done!). You will need to update the image URLs in the database to replace <code>http://site.example.com/files/</code> with <code>http://site.example.com/wp-content/uploads/sites/SITENUM/</code></li>
<li>Clear out the settings for each site for “Upload Path”, “Upload URL Path”, and “File Upload URL”. You can find these settings by going to Network Admin > Sites, then for each individual site, click the “Edit” link, then go to the Settings tab.</li>
</ol>

Disable Multisite Rewrites

Disable WordPress Multisite rewrites for File Uploads

Ashar Irfan

A plugin to add a button to flush permalinks in WordPress admin bar.
<h3>Usage</h3>
Just click on the Flush Permalinks button in the WordPress admin bar.

Flush Permalinks Button

A plugin to add a button to flush permalinks in WordPress admin bar.

Disable Multisite Rewrites vs Flush Permalinks Button