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DNS Redundancy is achieved by listing multiple servers, such as NS1.domain.com, NS2.domain.com, in your domain's DNS settings. You must list at least two servers, and can list 4 or more. If you are using a web host they will provide the server names where your web site is hosted for correct DNS locations. The registrar must provide redundant servers to ICCANN for your domain name in order for your web site to be found on the WWW.
When a web browser looks for your web site, it searches the web for your server's IP, such as 10.00.00.00, a numerical listing that routes the browser much like the telephone switching system does. If your browser cannot reach the first DNS listed, it will be routed to the next on the list, and the next, if available.
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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 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.
When was Unbound - DNS Server - created?
Unbound - DNS Server - was created in 2007.
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.
What is primary DNS server?
The primary DNS server is usually the same as the router's IP adress.
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
What is stub Zone?
Stub zone When 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.
What is the process by which one DNS server sends a name resolution request to another DNS server?
referral
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 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"
