Service Level Definition: Domain Name Service

CITES> services > DNS SLD

Documentation	http://www.cites.uiuc.edu/dns/
Description	The Domain Name Service (DNS) has two components: the DNS application, and the data management of campus domains and networks. DNS maps names and Internet Protocol (IP) addresses so that webpages and web services can be accessed by names rather than IP Address. The data management of DNS keeps DNS information current so that websites, web services and other network components can communicate with each other. Some web services and email providers require the host to be properly registered in the DNS for security and anti-spam reasons.
Who can use this service	Everyone on campus automatically uses the DNS in order to access webpages or web services. Only campus network administrators listed in Contact Manager with DNS Request authority can make data management changes for their specific network(s) and domain(s).
When the service is available for use	DNS application is available: Supported Service Hours: Twenty-four hours a day, excluding the maintenance hours listed below Maintenance Hours:* 5:30 A.M. to 7:30 A.M. Monday through Friday 5:30 A.M. to 10:00 A.M. Saturday 5:30 A.M. to 12:00 P.M. Sunday * The DNS application service consists of several servers, which are rarely inaccessible at the same time. The service will almost always be available during these maintenance hours. Data Management of DNS is available: Supported Service Hours: 8:30 A.M. to 5:00 P.M. Monday through Friday, and by appointment (The web interface located at https://www-dns.cites.uiuc.edu/hostreg is usually available 24 hours a day.)
What you must have in order to use the service	Computer with network connection Network Administrators wishing to make data management changes must be listed in Contact Manager with the appropriate permissions
Where to go for help	CITES OpCenter (call 244-1000 or email net-trouble@uiuc.edu)
Dependencies on other services	Network Infrastructure
Cost	A subsidy provided by the Provost on behalf of the campus allows CITES to offer this service at reduced charge. Each department is granted one domain at no cost. Additional UIUC domains (uiuc.edu or uillinois.edu) can be acquired at a cost of $10 per year. Non-UIUC domains can be acquired and registered for $15 per year, with a $50 installation fee.
How to request changes to this service	Campus network administrators can email hostmgr@uiuc.edu with requests, or make changes such as adding, deleting, renumbering, or renaming machines, at https://www-dns.cites.uiuc.edu/hostreg.
How to find out about changes to this service	Service outages will be posted on the CITES Status web page. Major changes will be announced on the DNS webpage, the CITES-TECHSUPPORT list, and on the CITES homepage.
Date created	November 18, 2003
Date of last review	April 16, 2008

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Last modified April 21, 2008