Domain Name System Pdf
A full domain name is a sequence of labels.
Domain name system pdf. Rfc 882 domain names concepts and facilities rfc 883 domain names implementation and specification the transition plan was initially released in november 1983 transition to be completed by may 1984. The new system called the domain name system or dns the initial dns rfcs were released in 1984. 2 20 2020 8 03 13 am.
The domain name system dns is a critical component of the global internet infrastructure. Domain name system dns materi jarkom ridwan m t pengenalan dns suatu sistem yang memungkinkan nama. Defines how long the rr may be cached before authoritative server should be queried.
Ruang nama domain ruang nama domain domain name space digunakan untuk membuat penamaan hirarkis. Domain name each node in the tree has a domain name. Dns resource record a dns record contains the information queried for value field in the question plus additional information on the record ttl class type of record.
The tree can have only 128 levels. In this design the names are defined in an inverted tree structure with the root at the top. Dibuat dalam bentuk struktur pohon terbalik inverted tree structure dengan akar root berada di atas pohon terdiri dari 128 tingkat atau level level 0 adalah root dan 127 level berikutnya untuk cabang.
To have a hierarchical name space a domain name space was designed. View domain name system dns pdf from computer misc at syiah kuala university. Introduction to the domain name system author.
Domain name system dns merupakan sistem berbentuk database terdistribusi yang akan memetakan mengkonversikan nama host mesin domain kealamat ip internet protocol dan sebaliknya. The ohio state university raj jain 24 15 name resolution cont each computer has a name resolver routine e g gethostbyname in unix each resolver knows the name of a local dns server resolver sends a dns request to the server dns server either gives the answer forwards the request to another server or gives a referral referral next server to whom request should be sent.