Domain Name System Query
Dns stands for a domain name system.
Domain name system query. Dns which stands for domain name system is used as the medium to translate domain names to their respective ip addresses when a client initiates a request query. It also provides the following descriptions. It is an application layer protocol for message exchange between clients and servers.
To improve efficiency reduce dns traffic across the internet and increase performance in end user applications the domain name system supports dns cache servers which store dns query results for a period of time determined in the configuration time to live of the domain name record in question. Dns is a host name to ip address translation service. Nslookup onslookup nsupdate dig and dig commands used to query name servers.
This information describes the domain name system dns domain names domain name servers resolvers and resource records. So if you type in a web address in your web browser dns will resolve the name to a number because the only thing computers know are numbers. Pengertian dns domain name system domain name system dns merupakan sistem berbentuk database terdistribusi yang akan memetakan mengkonversikan nama host mesin domain ke alamat ip internet protocol dan sebaliknya.
A domain name system based blackhole list domain name system blacklist dnsbl or real time blackhole list rbl is a service where with a simple dns query mail servers can check whether a sending ip address is on a blacklist of ip addresses reputed to send email spam. The dns name field has no set length because it varies depending on the domain name length as we are going to see soon. Dns is a distributed database implemented in a hierarchy of name servers.
Typically such caching dns servers also implement the recursive algorithm necessary to resolve a given name starting with the dns root through to the authoritative name servers of the queried. The dns query can be resolved by local dns. Dns stores the database of all.
Struktur database dns berbentuk hierarki atau pohon yang memiliki beberapa cabang cabang cabang ini mewakili domain dan dapat berupa host subdomain ataupun top level domain. The dns name field. Dns resolves names to numbers to be more specific it resolves domain names to ip addresses.