update无污染dns

1of5.
TELAnInnovativeUseoftheDNS2of5THECONCEPTThe.
telusestheDomainNameSystem(DNS)inawaythatempowers.
teldomainowners,whetherbusinessesorindividuals,tocontrolhowandwherepeoplecancommunicatewiththem.
TraditionalTopLevelDomains(TLDs)usetheDNStoreturnAddressrecordsorIPaddressesthatareusedtoreachwebsitesorsendemail.
Inthecaseofawebsite,whenuserslookupIBM.
com,theirdevicequeriestheDNSforIBM'sIPaddress(theAddressrecord).
TheDNSreturnstheIPaddressassociatedwithIBM.
com(129.
42.
18.
103)andthedeviceusestheIPaddresstolocateandviewtheIBMwebsite.
AllexistingTopLevelDomainsusetheDNSinthistraditionalway.
However,the.
teldoesnotcommunicatewithwebcontentoremail--itenablescommunicationwithpeople.
ItthereforerequiresanapproachtostoringcontactinformationdirectlyintheDNSforwhichAddressrecordsareinappropriate,sinceanAddressrecordcannotidentifyaphonenumberoraVoIPserviceaddress,suchasaSkypeorYahoo!
Messenger.
The.
telwillallowcontactinformationtobestoreddirectlyintheDNSsothatwhenadeviceperformsaqueryfora.
teldomain(i.
e.
,AdamSmith.
tel),theDNSwillnotrespondwithanAddressrecord,ratheritwillreturnthecontactinformationdirectlytothedevice,whichenablestheclick-to-communicatefunctionality.
Thefollowingdemonstrateshowamobiledevicecaninitiatecommunicationusinga.
teldomainname.
Step1.
Asshowninthediagramtotheright,theuserlooksupAdamSmith.
telonhisInternetenabledmobiletelephone.
Step2.
Thedeviceusesitslocalnetwork(GPRS,3G,WiFi,Ethernet,etc.
)toquerytheDNSforAdamSmith.
tel.
Step3.
TheDNSrespondswiththecontactinformationAdamSmithchoosestostorewithinhis.
teldomain.
Thiscouldincludeamobilephonenumber,anemailaddress,hisofficephonenumberandmuchmore.
Step4.
TheuserelectstocallAdamSmithonhismobilephonefromtheproposedlistandclicks-to-communicate.
Step5.
AdamSmithiscontactedbytheuseronthemobilephonenumberofhischoice.
Atanytimeandasoftenashewishes,AdamSmithcanupdatehiscontactinformationstoredunderhis.
teldomainname,reflectingchangesinhowhewishestobecontacted.
EverychangehemakesisimmediatelyvisiblebecauseitisbepublishedandpropagatedthroughtheDNS.
(i.
e.
dials+441883321238)3of5AnyonewithanInternetconnectionmayaccessorreadany.
teldomain,asshownbelow.
However,apersonoracompanywishingtopublishcontactinformationdirectlywithintheDNSwillneedtopurchasea.
teldomain.
ThestoringofdataintheDNSisaccomplishedthroughtheuseofthreetypesofDNSrecords:NAPTR,TXTandLOCrecords.
THETECHNOLOGYThe.
telisthefirstTLDtoharnessNAPTR,TXTandLOCrecordswithintheDNSandtherebypoweracompellingsolutionforcontactmanagementthatenablesbothindividualsandbusinessestostoredatadirectlywithintheDNS.
NAPTRrecordsarearecentandmoreflexibleDNSresourcethantheconventionalAddressrecordsusedthusfar.
ThestabilityandrobustnessofNAPTRrecordshavebeenproveninaprotocolcalledENUM,amechanismfortranslatingtelephonenumbersintodomainnames.
However,unlikeENUM,the.
telisnotencumberedbytheregulatoryenvironmentfoundintheconventionaltelephonyworld.
Additionally,unlikeENUM,.
telisnotlinkedtoasinglephonenumberandisthereforeportable.
NAPTRrecordsareatthecoreofwhatmakesthe.
teldomainpowerfulandmeaningfultoindividualsandbusinesses.
TheseNAPTRrecordswillallowforthepublicationandmanagementofcontactinformationinawayneverbeforepossible,includingphonenumbers4of5(bothmobileandfixedline),emailaddresses,faxnumbers,VoIPserviceidentitiessuchasSkype,AIM,MSN(andallowuserstodistinguishbetweenthem),linkstowebpages,mapsandblogs.
TheseNAPTRrecordscanalsopointtootherNAPTRrecords,allowingfornavigationthroughatreeofcontactinformationbasedongeography,departmentoranyothersegmentation.
Theyallowforunlimitedupdatingofdynamicallychangingcontentandofferimmediateglobalaccesstoallnewlyupdatedinformation.
TheycanbeencryptedtoprotectconfidentialdataandalldatareturnedwithintheNAPTRrecordsisclickable,enablingaclick-to-communicatefeature,whichmakescommunicationusingthe.
telaseasyaspossiblefortheusers.
InadditiontostoringNAPTRrecords,the.
telusesTextrecordsorTXTrecordsstoreddirectlywithintheDNS.
TheseTXTrecordsallowforthepublicationoftextbasedinformationsuchasnames,titles,mailingaddresses,andkeywordsthatwillhelpuserssearchforandfindtherightpersonorbusinesstheywishtocontact.
Thesekeywordsmaybeeasilyindexedandsearched,enablingthecreationofaDNS-basedglobalwhiteandyellowpagesdirectoryservice.
Lastly,the.
telusesLocationrecordsorLOCrecordstopublishgeo-locationinformation.
Thisallowsbusinessesandindividualstoindicatetheirpreciselocation.
ThebenefitsofpublishingliveLOCrecordswillincreaseasmoreadvancedlocation-basedservicesemergeoverthecomingyears.
5of5COMPARATIVEANALYSISOFDNSVERSUSWEB-BASEDSOLUTIONSThe.
telisaTopLevelDomainusinginnovativeDNStechnologytopoweracommunication-basedInternetservice.
Incomparisontocurrentweb-basedsolutions,.
telprovidesamuchmorestructured,efficient,andreliableoffering.
Thefollowingtablehighlightskeyadvantagesofthe.
telDNSsolutionovertraditionalweb-basedsolutions:Feature.
telDNS/NAPTR-basedsolutionTraditionalweb-based/AddressrecordsolutionSpeedNAPTRrecordsareverysmall,mostlytransmittedoverUserDatagramProtocol(UDP)andextremelyquickWebpagesarelarge,transmittedoverHTTPconnectionsandcanbeslowespeciallyonmobiletelephonesCostDuetothesmallsizeofNAPTRrecords,theycanbecheaptotransmitovermobiledatanetworksViewingwebpagesonmobilephonescanbecomeexpensiveduetotheirsizeComplexityPublishingcontactdatacanbedoneinafewsimpleclicksPublishingwebpagesisacomplexandtime-consumingactivityScalabilityDNSisdesignedtobehighlyscalableWeb-basedservicesbecomeexpensiveandcumbersometoruninlargevolumesReliabilityTheDNS-basedsolutionisinherentlyagloballydistributedsystemthatisscalableandhasnosinglepointoffailureWeb-basedservicesarepronetodowntimeandsinglepointsoffailureGlobalAccessDNS-basedservicesareopenandaccessiblewithouttheneedforlogginginorbecomingamemberWeb-basedservicesrequireuserstologinbeforeaservicecanbeusedVisibility.
telwillreceiveexceptionalvisibilityasanemergingstandardforcommunicationsbecauseitisaTopLevelDomainWeb-basedservicesaremuchmorecommonplaceandhencedonotbenefitfromthemarketvisibilityavailabletonewlyissuedTopLevelDomainsSetupTheDNS-basedsolutionhasnoneedtoconstructandmaintainawebsiteWeb-basedsolutionsrequireconstructionandmaintenanceofawebsite