| Κείμενο |
To DNS einai oysiastika mia bash dedomenvn h opoia xrhsimeyei sto na metafrazei ena url sto ip poy ths antistoixei. Einai katanemhmenh se morfh dendroy dhmioyrgontas ayto poy legetai Domain Name Space. Poly xontrika, otan esy zhtas ena url px to lala.koko.gr tote prepei na rvthseis to server poy einai ypeyuyno gia to gr na se steilei ston antistoixo gia ton koko meta aytos sto lala kai epiteloys na maueis ti ip exei o web server poy zhtas.
Entelvs tyxaia to eisagvgiko kefalaio enos poly kaloy biblioy einai online edv:
http://www.oreilly.com/catalog/dns3/chapter/ch02.html
Opote, sto uema soy, esy exeis to pc soy me to web server (kykloforoyn polloi kai dvrean) kai th syndesh soy kai apofasizeis na ftiajeis to site me onomasia www.tassos.gr. Ayto prepei na kataxvrhuei se ena dns server vste na apokthsei ypostash sto internet. An bebaia exeis stauerh ip (px syndesh dsl) mporeis na mpaineis sto site soy me ayth (grafeis ston browser px 111.222.333.1) alla gia na antistoixhseis ayth thn ip sto onoma www.tassos.gr ueleis dns
O router tvra einai mia syskeyh poy oysiastika einai ena hub me perissoteres diktyakes leitoyrgies. Mporeis panv toy na envseis dyo diaforetika diktya, ektypvtes, na exei firewall, na to xrhsimopoieis gia na bgainoyn ola ta pc soy sto internet apo ena ip klp.
Oti aporia paramenei h dhmioyrgeitai, edv eimai (edv einai kai kati didaktores thlepikoinvnivn alla de toys akoyv :) |
