Campus DNS Hosting Services

A knowledge base article about Campus DNS Hosting Services provided by the UC Berkeley IT Service Hub - Knowledge Portal

bIT provides DNS and Domain hosting services to the UC Berkeley community. These services are in place to help provide a uniform environment for users of the campus networks.

Client DNS Services

Caching, or relaying, DNS service is provided by the servers listed below. These addresses provide lookup service the same way as Internet Service providers. Using the bIT caching servers provides a fast and reliable service that takes Campus services into account. Using external services such as Google, Cloudflare, or OpenDNS will work but may not have everything related to the campus community. 

Server              Addresses                   
ns1.berkeley.edu    128.32.206.9,  128.32.206.9 
ns2.berkeley.edu    128.32.136.12, 128.32.206.12
dns.v6.berkeley.edu 2607:f140:ffff:fffe::53     

Domain Hosting Services

bIT offers DNS and Domain hosting services with the Infoblox DDI system. This provides a highly redundant platform for groups within the UC Berkeley community to host DNS for their domains. Examples of this are the berkeley.edu domain itself and calperformances.org.

There are three ways you can collaborate with bIT to host your domain. Fully Hosted, Secondary, and Delegated. All of these are free to the UC Berkeley community. Whichever groups choose they can sign up by making a DNS service request from TelCat. Select Data Network Services, and then DNS service.

Hosted DNS Service

Our recommended service with the majority of our users. This service hosts your domain or subdomain within the Infoblox system. It can be manged for you, or you can have control to manage it yourself. We import your existing domain configuration and when it's ready you change your domain to use the bIT authoritative name servers.

Once this service is setup you configure your domain to use the following three authoritative domain name servers and you will be in production.

Server             IPv4            IPv6                  
adns1.berkeley.edu 128.32.136.3    2607:f140:ffff:fffe::3
adns2.berkeley.edu 128.32.136.14   2607:f140:ffff:fffe::e
adns3.berkeley.edu 192.107.102.142 2607:f140:a000:d::abc 

Secondary DNS Service

This service is for groups who want to leverage the redundancy of the bIT environment but manage the domain or subdomain on your own equipment. With this service we configure Infoblox to accept domain information from your servers and then make it available from the campus infrastructure. A group can have as few as one DNS server to feed information into Infoblox. If the groups server ever becomes unavailable Infoblox will continue to provide the last information it received until the timers set by the group expire.

To prepare your infrastructure for secondary service you must configure the following three domain name servers in your environment for the following:

Server                        IPv4            IPv6                  
ewdc-vps-ib1.net.berkeley.edu 169.229.2.168   2607:f140:ffff:e000::c
sut-vps-ib1.net.berkeley.edu  136.152.1.39    2607:f140:3:c::39     
sdsc-vps-ib1.net.berkeley.edu 192.101.42.213  2607:f140:a000:12::213

Delegated DNS Service

This service causes Infoblox to redirect queries from a subdomain of berkeley.edu to another groups servers. Infoblox itself does not store or relay any of the sub-domain information, it only provides a reference to where the information can be found. This service places full responsibility for the management and maintenance of the sub-domains service in the hands of the hosting group. If the groups servers ever become unavailable the sub-domain will also become unavailable.

There are two limitations to this service: 

  1. It is only offered for subdomains of berkeley.edu (like *.its.berkeley.edu)
  2. The group must maintain at least two DNS servers, we will not support delegation to a non-redundant environment