AirLink Communications Raven X HSDPA Uživatelská příručka Strana 79

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 125
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 78
IP Manager
Rev 2.0 Jul.09 72
needtoberegisteredwithICANNoranyotherregistry.It
istheresponsibilityofadomaintokeeptrackofitsown
subs.
car54.mydomain.com
.comistheTLD
mydomainisthedomain(usuallynotedasmydomain.com
sincethedomainisspecifictotheTLD)
car54isthesubdomainorservernameassociatedwiththe
device,computer,ormodemregisteredwith
mydomain.com
car54.mydomain.com.ca
Thiswouldbethesameasabove,butwiththeadditionofthe
countrycode.Inthisexample,thecountrycode(.ca)isfor
Canada.
Tip: A URL (Universal Resource Locator) is different from a domain
name in that it also indicates information on the protocol used by a
web browser to contact that address, such as http://
www.sierrawireless.com. www.sierrawireless.com is a fully qualified
domain name, but the http://, the protocol identifier, is what makes the
whole thing a URL.
Dynamic Names
WhenanIPaddressisnotexpectedtochange,theDNSserver
canindicatetoallqueriesthattheaddresscanbecachedand
notlookedupforalongperiodoftime.DynamicDNSservers,
conversely,haveashortcachingperiodforthedomaininfor
mationtopreventotherInternetsitesorqueriesfromusingthe
oldinformation.SincetheIPaddressofamodemwitha
dynamicaccountcanchangefrequently,iftheoldinformation
wasused(suchaswithaDNSserverwhichindicatesthe
addresscanbecachedforalongperiodof
time)whentheIP
addresschanged,thedomainwouldnolongerpointtothe
newandcorrectIPaddressofthemodem.
IfyourRavenXEisconfiguredforDynamicIP,whenitfirst
connectstotheInternet,itsendsaIPchangenotificationtoIP
Manager.IPManagerwillacknowledgethechangeand
updatetheDynamicDNS server.ThenewIPaddresswillthen
betheaddressforyourmodem’sconfiguredname.
Onceyourmodem’sIPaddresshasbeenupda tedinIP
Manager,itcanbecontactedvianame.IftheIPaddressis
needed,youcan usethedomainnametodeterminetheIP
address.
Zobrazit stránku 78
1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 124 125

Komentáře k této Příručce

Žádné komentáře