We identified an iaaue with our main DNS Database server on Saturday night.  A migration to an alternative, dedicated server took place yesterday afternoon.

The replacement serve had a slightly different configuration (for the techies, it had a smaller /var partition), and this led to a number of issues.  We became aware of dropped queries to the main public facing DNS servers at 08.35 this morning.

We have now altered the configuration and all is back to normal.

Please accept our apologies for the Monday morning inconvenience.