Two new DNS servers have been installed for the CDS network, ns0 and ns1.  These will be the (redundant) pair of DNS servers that will provide name resolution to all CDS hosts.  ns0 is configured as the master for the cds.ligo-wa.caltech.edu domain (only used internally by CDS), ns1 is a slave server for the same domain and will automatically receive zone updates from ns0.  Since a large number of workstations and servers are configured to use cdsfs0 for domain lookups, cdsfs0 will continue to serve DNS requests, but has been converted to be a slave server like ns1 so that updates only need to occur on a single server.  cdsfs0 was previously the master for the internal cds zones.  At some point in the future, this functionality will be turned off completely on cdsfs0.  The zone files themselves have also been refactored and cleaned up to correct some minor issues and facilitate ease of future maintenance.