Tag: cluster

DNS hardware upgrades.

Yesterday we completed an upgrade of our recursive DNS clusters (what you see as ns1.sonic.net and ns2.sonic.net).

This upgrade gives those DNS servers a substantial performance boost and enables them to handle the ever increasing ammout of requests that they see.

DNS is core to the Internet experience — without it : E-mail ceases to function, and surfing your favorite web-sites is impossible; it is because of this that we have always made DNS a priority in our infrastructure and are very proud of our ability to stay available even during times of high traffic and maintenance.

— Augie and Don.

Intermittent mail delivery problem from Customer Web Cluster.

Today we fixed a problem on the Customer Web Cluster that would have effected mail flow from Customer scripts on our Web Cluster that were using the local Sendmail program to send e-mail. The problem began on Sunday and would have appeared as an intermittent failure to Customer scripts as only two of the servers in our Web Cluster displayed the problem.

We will be crafting more detailed monitoring so that we can resolve this problem much faster in the future.

–Augie and William.