Correct User IP for WordPress comments on Mosso

Update #2: It looks like a couple of days after I posted this, the Mosso guys sent word on fresh clicks that the issue has been fixed on their end, rendering this plugin completely useless, days after I put it up. 🙂

I stumbled across a problem running WordPress on Mosso (Rackspace Clould) servers (which I’m now quite happily running on 🙂 ) in the Mosso Knowledge Base, where the ip address of the user is not properly recorded in comments when running in the Mosso cluster. The knowledge based linked to a fresh clicks article, but I wanted something a little easier to maintain than an inline hack. So I rolled a quick and dirty plugin, which seems to do the trick. Here is what it does:

Plugin Name: unFocus.Mosso-User-IP
Plugin URI:
Description: A plugin to set REMOTE_ADDR on Mosso clusters to
HTTP_X_CLUSTER_CLIENT_IP to fix tracking and comment posts, etc.
Version: 1.0a
Author: Kevin Newman
Author URI:

function unFocus_MossoUserIP() {
add_action('init', 'unFocus_MossoUserIP');

That’s it! It just sets the regular REMOTE_ADDR value to the Mosso Server var HTTP_X_CLUSTER_CLIENT_IP. Pretty simple. 🙂 Update: I forgot to upload a zip archive.