DNS servers
en:DNS servers
he:שרתי DNS
ro:Servere DNS
ru:DNS-серверы
pl:Serwery DNS
ja:DNS サーバー
ar:ملقمات DNS
zh:DNS 服务器
de:DNS-Server
nl:DNS-servers
it:Server DNS
pt:Servidores DNS
es:Servidores DNS
fr:Les serveurs DNS
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What is a Server DNS
DNS means <Domain Name System > or system of field. We'll explain the operation, then we will discuss the concept of field (or subdomain ).
The Server DNS is a directory for computer. When you want to access a computer in the network, your computer will query the Server DNS to retrieve the address of the computer that you want to join. Once again, your computer will have reclaimed the address of the recipient, it may attach it directly with its IP address.
The Server DNS will allow to the relationship between the computer name and IP address. File:Requête-Dns.png
The different certification DNS
��Bold text A : The A resource records (for host address ) are mapping a host name and an address IPv 4 (IP address of a length of 32 bits ). They typically represent the majority of the areas of direct research resource records.
�� YYYY : Records of this type are mappings between a host name and an address IPv 6 (IP address of a length of 128 bits).
�� CNAME : type CNAME resource records (Canonical NAME or CNAME ) are mappings between a host name and a different host name. They allow to create aliases for a given host name (i.e. to associate multiple host names with a same machine ).
�� HINFO : Type HINFO resource records (Host INFO or host information ) specify the type of processor (ex. : INTEL - 386) and the operating system (ex. : WIN 32) corresponding to a host name.
�� MX : type MX RRs (Mail eXchanger ) identify the Servers by courier. Each Server Messaging must also have an A resource record. It is possible to give different priority to each MX record.
�� NS : the RRs of type NS (Server name or Server name ) identify the Servers DNS from the DNS zone. They are used for the DNS delegation.
�� PTR : the resource records of type PTR (Point or pointer ) are the mappings between an IP address and host name. The majority of records in reverse lookup zones.
�� SOA : the resource of type SOA record (Start Of Authority ) contain the host name and IP address of Server Which currently hosts DNS primary DNS zone. There is only one SOA record per DNS zone. It was the first recording creates in a DNS zone.
�� SRV : records of type SRV (Service ) used to map a hostname to a given service type. Thus the SRV records can retrieve a list of Servers HTTP or even domain controllers. It is possible to give different priority to every SRV record.
�� WINS : type WINS resource records indicate to the Server DNS IP a Server WINS has contact in the event of failure during host name resolution. WINS records may be created only in a forward lookup zone.
�� WINS-R : type WINS-R resource records can be created only in a reverse lookup zone.
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