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.edu Technical FAQ

Contents
  1. Why don't I have to enter an IP address for a nameserver that's not in a .edu domain?
  2. Why don't IP addresses show up in the EDUCAUSE Whois server for nameservers that don't end in .edu?
  3. How do I make nameserver address changes?
  4. When will my changes to domains and hosts be made live on the Internet?
  5. How do I know if my changes have been made?
  6. How do I configure my DNS?
  7. Where can I find more information on DNS?
  8. What are Autonomous System Numbers?
  9. What is an IN-ADDR.ARPA domain?
  10. How do I register an IN-ADDR.ARPA domain?
  11. How do I get an SSL (Secure Sockets Layer) server certificate for my Web site?
  12. I received a report from the hostmaster that I have an orphan A record in the .edu zone. What do I do?
  13. Can I specify an IPv6 address for domain hosts?
Questions and Answers
1.Why don't I have to enter an IP address for a nameserver that's not in a .edu domain?
 We are only authoritative for nameservers in the .edu domain. Therefore we only collect IP addresses for nameservers that end in .edu. Nameservers that don't end in .edu are registered in their second level domain through the registrar of that domain. (e.g., Nameserver ns.someisp.net is registered by someisp.net at the registrar for someisp.net) If we were to collect IP addresses for non .edu nameservers, it would be for display purposes only. Since there is no overall methodology for keeping information in synch between registrars, we have chosen not to collect or display data that is not authoritative and may be incorrect if not kept up to date.
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2.Why don't IP addresses show up in the EDUCAUSE Whois server for nameservers that don't end in .edu?
 IP addresses for nameservers not ending in .edu are not collected by EDUCAUSE and are therefore not displayed. To find the IP address of a nameserver that doesn't end in .edu, visit the VeriSign Whois server at http://www.verisigninc.com/en_US/products-and-services/register-domain-names/whois/index.xhtml?loc=en_US or at the Whois server of the Registrar of the nameserver.
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3.How do I make nameserver address changes?
 Changes to a nameserver IP address or changes to the nameserver name in the same domain, can be made through the EDUCAUSE Web site. (e.g., dns1.mydomain.edu to dns2.mydomain.edu) If you want to change the name of a nameserver from one domain to another domain (e.g., dns.mydomain.edu to dns.yourdomain.edu and both in the .edu domain) you will be prompted for the passwords for both domains. Or if you wish, two nameservers can have the same IP address. 
 
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4.When will my changes to domains and hosts be made live on the Internet?
 All changes are automatic and are immediately reflected in the EDUCAUSE Whois server and the registry database. New domains and deleted domains will be reflected in the EDUCAUSE Whois server and the registry database as soon as a confirmation is sent out to the domain administrators. 
 
The root zone file, which contains domain names, host names, and IP addresses, is updated simultaneously with the registry database. Once the zone file has been updated, the Root Servers propagate the information throughout the Internet. You can view the current Root servers for the .edu domain here.
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5.How do I know if my changes have been made?
 All changes are logged in the .edu server at http://whois.educause.net/. You can either visit the Web site or point your telnet based Whois client to whois.educause.edu. Changes that are sent to VeriSign (New Domains, Name Servers names, Name Server IP addresses) can be verified by checking the VeriSign Whois server at http://www.verisigninc.com/en_US/products-and-services/register-domain-names/whois/index.xhtml?loc=en_US. Once your changes are visible on the VeriSign Whois server, it may take a number of hours before the changes are propagated throughout the Internet. 
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6.How do I configure my DNS?
 The IETF has published several Requests for Comment (RFCs) that cover best practices for DNS, as recommended by DNS architects and planners for the Internet. You might find the following RFCs useful, especially if you are planning a large DNS design:  
     
  • RFC 1912, "Common DNS Operational and Configuration Errors"  
  • RFC 2182, "Selection and Operation of Secondary DNS Servers"  
  • RFC 2219, "Use of DNS Aliases for Network Services"
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7.Where can I find more information on DNS?
 There are several great resources on the Internet for learning more about DNS. Here is a link to one of those resources. 
 
DNS Resources Directory 
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8.What are Autonomous System Numbers?
 Autonomous System Numbers (ASNs) are globally unique numbers that are used to identify autonomous systems (ASes), and which enable an AS to exchange exterior routing information between neighboring ASes. An AS is a connected group of IP networks that adhere to a single and clearly defined routing policy. More information and registration information can be found at http://www.arin.net/policy/index.html#five.
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9.What is an IN-ADDR.ARPA domain?
 An IN-ADDR.ARPA domain allows for mapping of IP addresses into domain names. This provides address to hostname reverse resolution. IN-ADDR domains are represented using the network number in reverse. For example, the IN-ADDR domain for network 124.46.68.0 is represented as 68.46.124.in-addr.arpa. 
 
You almost always need reverse resolution. 
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10.How do I register an IN-ADDR.ARPA domain?
 You should ask your upstream provider about registering your IN-ADDR.ARPA domains. If you are working directly with a regional registry, visit their Web site. 
 
Asia and Australia - APNIC 
America - ARIN 
Europe - RIPE 
 
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11.How do I get an SSL (Secure Sockets Layer) server certificate for my Web site?
 EDUCAUSE does not issue SSL certificates. You can obtain an SSL certificate through VeriSign at internetsales@verisign.com or 650-426-5112 or 866-893-6565.
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12.I received a report from the hostmaster that I have an orphan A record in the .edu zone. What do I do?
 Orphan "A" records should not be in the .edu zone. An explanation of the implications of removing an orphan record can be found at http://www.educause.edu/edudomain/orphan.asp.
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13.Can I specify an IPv6 address for domain hosts?
 Yes, we support both IPv4 and IPv6 addresses when managing your hosts. The .edu zone also supports IPv6. If you don't have an IPv6 address range yet, you will need to obtain one from your ISP or from ARIN directly. Here is some more information that might help: 
 
http://www.arin.net/registration/ipv6/index.html 
http://en.wikipedia.org/wiki/IPv6 
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