LBNL Main site (lbl.gov)
The LBNL main site uses an anycast address, back-ended by three nameservers, to handle dns requests depending on your location on the network. Using the anycast address provides automatic redundancy during maintenance periods on the nameservers. The vast majority of computers should use this anycast address and no second DNS server is required.
ALS uses an anycast address backed by two nameservers located on ALS subnets. Using the anycast address provides automatic redundancy during maintenance periods on the nameservers. All ALS computers should use this anycast address and no second DNS server is required.
Only computers on the old JGI Walnut Creek network space should use this server. The vast majority of computers at JGI are on the LBNL Main site network and should use that configuration.
If the computer is at NERSC in Oakland, please use this nameserver.
Caching Only Nameserver
If you are running a caching only nameserver, it is recommended you specify all three of the DNS servers behind the ns.lbl.gov configuration. Do not use these settings for general computers at the Lab, you will get much better service by using ns.lbl.gov (above).