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DNS stands for Domain Name System. A DNS server resolves a name to an IP address, as stated in an earlier answer, but it can also point to multiple IP addresses for load balancing, or for backup servers if one or more is offline or not accepting connections.

Individual organizations may have their own DNS servers for their local Intranet.

Some sites have their own DNS server to switch between subdomains within them. For example, a site such as Blogspot can have subdomains come and go quite frequently. Rather than force every DNS server to update their own databases whenever someone creates a new blog, Blogspot could maintain their own DNS server to resolve names within the blogspot.com domain, e.g., to distinguish between myblog.blogspot.com and yourblog.blogspot.com ... their DNS server would be queried once blogspot.com is resolved, and it would be responsible for resolving myblog vs. yourblog.

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โˆ™ 2014-11-04 14:00:43
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โˆ™ 2014-02-27 21:13:38

DNS stands for Domain Name System, the system by which the names of websites and internet domains are managed. A DNS server is any computer registered to join that system.

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What are authoritative dns server and none-authoritative dns server?

authoritative dns server is server that has own databases that has name resolution for the clients that for resolve from name to ip address and for ip address to name. non-authorititative dns server is server that forward request of dns client to authoritative dns server for resolve.


What is the difference between a preferred DNS server and an altenate DNS server?

What is the difference between a preferred DNS server and an altenate DNS server?Read more: http://wiki.answers.com/What_is_the_difference_between_a_preferred_DNS_server_and_an_altenate_DNS_server#ixzz2LRd3ICed


What happens when your school does not have a DNS server?

You can use the DNS server of the school's ISP.


What are authoritative dns server and none authoritative dns server?

An authoritative dns server contains the master files of the domain. It's returning the most reliable result; while a none authoritative dns server only caches its results, depending from the answer through the dns chain.


What is the definition of a DNS server?

DNS Server stands for Domain Name System. It is a special type of computer on the internet that supports a DNS server. DNS Servers can also determine the speed on which you surf the internet.


What is primary DNS server?

The primary DNS server is usually the same as the router's IP adress.


When was Unbound - DNS Server - created?

Unbound - DNS Server - was created in 2007.


When would a dns server contact a root server?

If a DNS server cannot find the answer to the DNS Query in its own database it will first query the forwarders (if there are any configured) and then ask the root server. root servers (by default) are the master DNS servers of the Internet.


What is the DNS server in which changes are made for a particular zone and then propagated to other DNS servers?

The prefered DNS server for the site is the server which sends the dns zone updates to all the other servers in the site. The primary DNS zone is created on the server and it has the authority to send changes in zone to other servers


Define DNS server?

DNS, or Domain Name Server, matches a websites domain name with the IP address for that website's server.


What is DNS stand for?

TCP/ IP protocol suite uses a DNS client. DNS stands for Domain name system .A DNS server maps a name to an address.


What is the process by which one DNS server sends a name resolution request to another DNS server?

referral


What program is the DNS server?

Domain Name System (DNS)


How do you find your DNS server?

start run cmd {enter} ipconfig /all it'll be to the left of "dns server"


What can one do to resolve a dns?

One looking to resolve their DNS issues should enable reverse look-ups on their DNS server. Next, one should check for duplicate records on their DNS server. Finally, one should compare the records on their DNS server and make the necessary changes.


What is DNS Lookup?

A DNS Lookup is when a device that supports IP asks a DNS server for the IP address associated with a domain name. The DNS Server must "look up" the IP associated with that domain name.For example, if you were to go to Answers.com in your browser, your computer would initiate a DNS Lookup. This process involves asking the Primary DNS Server for Answers.com's IP address. The DNS Server will ask other servers until the IP address is found and the information returned to you.Assuming it is not cached, to find the IP address for wiki.answers.com, your DNS Server would first ask a DNS Root server for the DNS Server that handles "com". The root server would reply with the IP address for "com". Your DNS Server would then find the DNS Server that handles "com" and ask it for "answers.com". The "com" DNS Server would reply with the IP address for "answers.com". Your DNS server would finally find the DNS Server that handles "answers.com" and ask it for "wiki.answers.com".Once your computer receives the reply containing the IP address for wiki.answers.com, it can finally ask wiki.answers.com for the webpage it hosts.A common analogy is that DNS is like a very large phonebook. You look through the phonebook for the name you want and it will tell you the number you need to dial the person you're looking for. The process of looking up the number is a "DNS Lookup".If you would like to experiment with DNS Lookups, you can use the command line utility "nslookup" in Windows or Linux.


How DNS server caching works?

If a client send a query requesting for a particular web page to the DNS server and if the DNS server resolves the page from the other DNS servers & it will be store the same page in the DNS cache and it will give the response to the client with the requested page. If again the same web page is requested by any client then DNS server will get the web page from the DNS cache instead of again fetching the same page from the internet. With this there wont be any delay for the client to get the web page. This helps in bandwidth control. This is how the DNS server caching works.


What is secondary zone in active directory?

Secondary zone When a zone that this DNS server hosts is a secondary zone, this DNS server is a secondary source for information about this zone. The zone at this server must be obtained from another remote DNS server computer that also hosts the zone. This DNS server must have network access to the remote DNS server that supplies this server with updated information about the zone. Because a secondary zone is merely a copy of a primary zone that is hosted on another server, it cannot be stored in AD DS.


A DNS Server can be primary for one zone and secondary for another True or False?

False. The DNS records cannot be added directly to the secondary DNS zone. The secondary DNS zone can receive the updated records only from the primary DNS zone of the DNS server.


Indicates the maximun time that a record will be catched by a DNS server?

Time To Live (TTL) specifies maximum time DNS server keep cached DNS records.


What is dynamic DNS integrated DNS?

The dynamic DNS integrated DNS refers to the method of automatically updating a name server in the DNS in real time.


What are the types of DNS zones in windows server 2003?

Primary zoneWhen a zone that this DNS server hosts is a primary zone, the DNS server is the primary source for information about this zone, and it stores the master copy of zone data in a local file or in AD DS. When the zone is stored in a file, by default the primary zone file is named zone_name.dns and it is located in the %windir%\System32\Dns folder on the server.Secondary zoneWhen a zone that this DNS server hosts is a secondary zone, this DNS server is a secondary source for information about this zone. The zone at this server must be obtained from another remote DNS server computer that also hosts the zone. This DNS server must have network access to the remote DNS server that supplies this server with updated information about the zone. Because a secondary zone is merely a copy of a primary zone that is hosted on another server, it cannot be stored in AD DS.Stub zoneWhen a zone that this DNS server hosts is a stub zone, this DNS server is a source only for information about the authoritative name servers for this zone. The zone at this server must be obtained from another DNS server that hosts the zone. This DNS server must have network access to the remote DNS server to copy the authoritative name server information about the zone.You can use stub zones to:Keep delegated zone information current. By updating a stub zone for one of its child zones regularly, the DNS server that hosts both the parent zone and the stub zone will maintain a current list of authoritative DNS servers for the child zone.Improve name resolution. Stub zones enable a DNS server to perform recursion using the stub zone's list of name servers, without having to query the Internet or an internal root server for the DNS namespace.Simplify DNS administration. By using stub zones throughout your DNS infrastructure, you can distribute a list of the authoritative DNS servers for a zone without using secondary zones. However, stub zones do not serve the same purpose as secondary zones, and they are not an alternative for enhancing redundancy and load sharing.There are two lists of DNS servers involved in the loading and maintenance of a stub zone:The list of master servers from which the DNS server loads and updates a stub zone. A master server may be a primary or secondary DNS server for the zone. In both cases, it will have a complete list of the DNS servers for the zone.The list of the authoritative DNS servers for a zone. This list is contained in the stub zone using name server (NS) resource records.When a DNS server loads a stub zone, such as abc.xyz.com, it queries the master servers, which can be in different locations, for the necessary resource records of the authoritative servers for the zone abc.xyz.com. The list of master servers may contain a single server or multiple servers, and it can be changed anytime.


Is a proxy server and DNS server the same thing?

Yes no


Every time you ask for how to find your primary and secondary dns the answer is always something about going to your DNS server hows that your primary and secondary DNS if its only one set of numbers?

It means, you do not have secondary DNS server.


How does the HOST file relate to DNS?

The host file provides a list of static DNS entries for a specific computer. In general, the computer checks it's host file for DNS lookup before going to the DNS server.If the server name is found in the host file, the computer uses the specified IP address. Otherwise, the server queries a DNS server for name lookup.