TSO has determined that the DNS outage on April 4, 2009 (http://support.cc.gatech.edu/utilities/alerts/dns-resolution-failure), was due to a failure of dlv.isc.org. The problem has been corrected by ISC, so TSO will re-enable DLV beginning at 5:00 PM, Tuesday, April 7, for the CoC DNS servers. This will require a restart of the DNS service and may briefly affect DNS lookups for CoC faculty, staff, and students. TSO expects the maintenance to be complete by 6:00 PM, April 7.