Domain Name Service Configuration

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 requried.

HostnameIP address
ns.lbl.gov131.243.5.1

ALS (als.lbl.gov)

If the computer is at the ALS at the Lab, please configure to use this name server.

HostnameIP address

nsals.lbl.gov

131.243.84.10

JGI-PSF (jgi-psf.org)

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. 

RoleHostnameIP address
Primary

ns1.jgi-psf.org

198.129.88.11
Secondaryns2.jgi-psf.org198.129.96.10

NERSC (nersc.gov)

If the computer is at NERSC in Oakland, please use this nameserver. 

RoleHostnameIP address
Primary

ns1.nersc.gov

128.55.6.10
Secondaryns2.nersc.gov128.55.6.11

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).

HostnameIP address
nsx.lbl.gov131.243.64.3

ns1.lbl.gov

128.3.34.186
ns2.lbl.gov131.243.64.2

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