From our Moodle host:

Dear Valued Client,

In the past few weeks, some of our clients have been the target of Distributed Denial of Service (DDoS) attacks. These attacks have led to outages for other clients who shared the same internet access points.

To help us detect and prevent this type of attack in the future, Remote-Learner needs to move a critical piece of security infrastructure. The reconfigured hardware will reduce the probability of a successful attack and improve access to the rest of our system during an incident.

We will implement this change during a very brief maintenance window this Thursday, March 7, 2013 at 11:59 PM CST. While the service interruption should not last longer than a couple of minutes, there is a small chance we will require up to 15 minutes.

Thank you for your understanding.

Sincerely,

The Remote-Learner Team