2018-12-19 - News - Tony Finch
As announced last week the remaining authoritative DNS servers
will be upgraded this afternoon. There will be an outage of
authdns1.csx.cam.ac.uk for several minutes, during which our other
authoritative servers will be available to provide DNS service.
The primary server ipreg.csi.cam.ac.uk will also be rebuilt, which
will involve reconstructing all our DNS zone files from scratch. (This
is less scary than it sounds, because the software we use for the
hourly DNS updates makes it easy to verify that DNS zones are
the same.)
These upgrades will cause secondary servers to perform full zone transfers of our zones, since the incremental transfer journals will be lost.