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The resource records are created to help dns work like zone ,ip to name vice versa. there are 23 types of resource record types defined for dns.
DNS Record TypesA full list of DNS Record Types may be obtained from IANA DNS Parameters. RRValueRFCDescriptionhttp://wiki.answers.com/a.HTML1http://wiki.answers.com/../apd/rfc1035.txtIPv4 Address record. An IPv4 address for a host.http://wiki.answers.com/aaaa.HTML28http://wiki.answers.com/../apd/rfc3596.txtIPv6 Address record. An IPv6 address for a host. Current IETF recommendation for IPv6 forward-mapped zones.http://wiki.answers.com/a6.HTML38http://wiki.answers.com/../apd/rfc2874.txtExperimental. Forward mapping of IPv6 addresses. An IP address for a host within the zone.AFSDB18http://wiki.answers.com/../apd/rfc1183.txtLocation of AFS servers. Experimental - special apps only.http://wiki.answers.com/cname.HTML5http://wiki.answers.com/../apd/rfc1035.txtCanonical Name. An alias name for a host.http://wiki.answers.com/dname.HTML39http://wiki.answers.com/../apd/rfc2672.txtExperimental. Delegation of reverse addresses (primarily IPv6).http://wiki.answers.com/dnskey.HTML48http://wiki.answers.com/../apd/rfc4034.txtDNSSEC.bis. DNS public key RR.http://wiki.answers.com/ds.HTML43http://wiki.answers.com/../apd/rfc4034.txtDNSSEC.bis. Delegated Signer RR.http://wiki.answers.com/hinfo.HTML13http://wiki.answers.com/../apd/rfc1035.txtHost Information - optional text data about a host.ISDN20http://wiki.answers.com/../apd/rfc1183.txtISDN address. Experimental = special applications only.http://wiki.answers.com/key.HTML25http://wiki.answers.com/../apd/rfc2535.txtPublic key associated with a DNS name.LOC29http://wiki.answers.com/../apd/rfc1876.txtStores GPS data. Experimental - widely used.http://wiki.answers.com/mx.HTML15http://wiki.answers.com/../apd/rfc1035.txtMail Exchanger. A preference value and the host name for a mail server/exchanger that will service this zone. RFC 974 defines valid names.http://wiki.answers.com/naptr.HTML35http://wiki.answers.com/../apd/rfc3403.txtNaming Authority Pointer Record. Gross misnomer. General purpose definition of rule set to be used by applications e.g. VoIPhttp://wiki.answers.com/ns.HTML2http://wiki.answers.com/../apd/rfc1035.txtName Server. Defines the authoritative name server(s) for the domain (defined by the SOA record) or the subdomain.http://wiki.answers.com/nsec.HTML47http://wiki.answers.com/../apd/rfc4034.txtDNSSEC.bis. Next Secure record. Ssed to provide proof of non-existence of a name.http://wiki.answers.com/nxt.HTML30DNSSEC Next Domain record type. Obsolete use NSEC.http://wiki.answers.com/ptr.HTML12http://wiki.answers.com/../apd/rfc1035.txtIP address (IPv4 or IPv6) to host. Used in http://wiki.answers.com/../ch3.RP17http://wiki.answers.com/../apd/rfc1183.txtInformation about responsible person. Experimental - special apps only.http://wiki.answers.com/rrsig.HTML46http://wiki.answers.com/../apd/rfc4034.txtDNSSEC.bis. Signed RRset.RT21http://wiki.answers.com/../apd/rfc1183.txtThrough-route binding. Experimental - special apps only.http://wiki.answers.com/sig.HTML24http://wiki.answers.com/../apd/rfc2931.txt/http://wiki.answers.com/../apd/rfc2535.txtDNSSEC. Obsolete use RRSIG. SIG(0) is used as a special meta RR in DDNS and zone transfer security.http://wiki.answers.com/soa.HTML6http://wiki.answers.com/../apd/rfc1035.txtStart of Authority. Defines the zone name, an e-mail contact and various time and refresh values applicable to the zone.http://wiki.answers.com/../ch9/spf.HTML99http://wiki.answers.com/../apd/rfc4408.txtSender Policy Framework (v1). Defines the servers which are authorized to send mail for a domain. Its primary function is to prevent identity theft by spammers.http://wiki.answers.com/srv.HTML33http://wiki.answers.com/../apd/rfc2782.txtDefines services available in the zone, for example, ldap, http etc..http://wiki.answers.com/txt.HTML16http://wiki.answers.com/../apd/rfc1035.txtText information associated with a name. The http://wiki.answers.com/../ch9/spf.HTMLand may (as of April 2006) be defined using an SPF RR. DKIM (http://wiki.answers.com/../apd/rfc4871.txtalso makes use of the TXT RR for authenticaing email. http://wiki.answers.com/../ch9/dkim.HTML.WKS11http://wiki.answers.com/../apd/rfc1035.txtWell Known Services. Deprecated in favour of http://wiki.answers.com/srv.HTML.X2519http://wiki.answers.com/../apd/rfc1183.txtX.25 address. Experimental - special apps only.
http://wiki.answers.com/origin.HTML
http://wiki.answers.com/include.HTML
http://wiki.answers.com/../apa/ttl.HTML
http://wiki.answers.com/generate.HTML(non-standard BIND only)
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Describe the importance of DNS to AD?
When you install Active Directory on a server, you promote the server to the role of a domain controller for a specified domain. When completing this process, you are prompted to specify a DNS domain name for the Active Directory domain for which you are joining and promoting the server.If during this process, a DNS server authoritative for the domain that you specified either cannot be located on the network or does not support the DNS dynamic update protocol, you are prompted with the option to install a DNS server. This option is provided because a DNS server is required to locate this server or other domain controllers for members of an Active Directory domain
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 a Local DNS server's purpose?
A local DNS server's purpose is to host a database and provide access to that database for those within a certain area. It may be within an office building or headquarters.
Integration between DHCP and DNS?
Traditionally, DNS and DHCP servers have been configured and managed one at a time. Similarly, changing authorization rights for a particular user on a group of devices has meant visiting each one and making configuration changes. DHCP integration with DNS allows the aggregation of these tasks across devices, enabling a company's network services to scale in step with the growth of network users, devices, and policies, while reducing administrative operations and costs.This integration provides practical operational efficiencies that lower total cost of ownership. Creating a DHCP network automatically creates an associated DNS zone, for example, reducing the number of tasks required of network administrators. And integration of DNS and DHCP in the same database instance provides unmatched consistency between service and management views of IP address-centric network services data.Windows Server 2003 DNS supports DHCP by means of the dynamic update of DNS zones. By integrating DHCP and DNS in a DNS deployment, you can provide your network resources with dynamic addressing information stored in DNS. To enable this integration, you can use the Windows Server 2003 DHCP service.The dynamic update standard, specified in RFC 2136: Dynamic Updates in the Domain Name System (DNS UPDATE), automatically updates DNS records. Both Windows Server 2003 and Windows 2000 support dynamic update, and both clients and DHCP servers can send dynamic updates when their IP addresses change.Dynamic update enables a DHCP server to register address (A) and pointer (PTR) resource records on behalf of a DHCP client by using DHCP Client FQDN option 81. Option 81 enables the DHCP client to provide its FQDN to the DHCP server. The DHCP client also provides instructions to the DHCP server describing how to process DNS dynamic updates on behalf of the DHCP client.The DHCP server can dynamically update DNS A and PTR records on behalf of DHCP clients that are not capable of sending option 81 to the DHCP server. You can also configure the DHCP server to discard client A and PTR records when the DHCP client lease is deleted. This reduces the time needed to manage these records manually and provides support for DHCP clients that cannot perform dynamic updates. In addition, dynamic update simplifies the setup of Active Directory by enabling domain controllers to dynamically register SRV resource records.If the DHCP server is configured to perform DNS dynamic updates, it performs one of the following actions:The DHCP server updates resource records at the request of the client. The client requests the DHCP server to update the DNS PTR record on behalf of the client, and the client registers A.The DHCP server updates DNS A and PTR records regardless of whether the client requests this action or not.By itself, dynamic update is not secure because any client can modify DNS records. To secure dynamic updates, you can use the secure dynamic update feature provided in Windows Server 2003. To delete outdated records, you can use the DNS server aging and scavenging feature.
The automated service that matches resource names with the required IP address?
It is called: DNS Domain Naming Service or Domain Naming System or Domain Naming Server
What is the automated service that matches resource records with ip address?
DNS
Requirement of dns in domain controler?
When you install Active Directory on a member server, the member server is promoted to a domain controller. Active Directory uses DNS as the location mechanism for domain controllers, enabling computers on the network to obtain IP addresses of domain controllers. During the installation of Active Directory, the service (SRV) and address (A) resource records are dynamically registered in DNS, which are necessary for the successful functionality of the domain controller locator (Locator) mechanism. To find domain controllers in a domain or forest, a client queries DNS for the SRV and A DNS resource records of the domain controller, which provide the client with the names and IP addresses of the domain controllers. In this context, the SRV and A resource records are referred to as Locator DNS resource records. When adding a domain controller to a forest, you are updating a DNS zone hosted on a DNS server with the Locator DNS resource records and identifying the domain controller. For this reason, the DNS zone must allow dynamic updates (RFC 2136) and the DNS server hosting that zone must support the SRV resource records (RFC 2782) to advertise the Active Directory directory service. For more information about RFCs, see DNS RFCs. If the DNS server hosting the authoritative DNS zone is not a server running Windows 2000 or Windows Server 2003, contact your DNS administrator to determine if the DNS server supports the required standards. If the server does not support the required standards, or the authoritative DNS zone cannot be configured to allow dynamic updates, then modification is required to your existing DNS infrastructure.
Which are DNS resource records?
The choices are MX, NS, MB, SRV choose all the apply
If you have not modified the default settings for dns on the dhcp client or server what client record or records will the dhcp server update in dns?
A. The PTR resource record.
What is the fuction of round robin DNS?
ANSWER: Round robin rotates the order of matching resource records in the response list returned to DNS clients. Each successive DNS client that queries for a multihomed name gets a different resource record at the top of the list.
Describe the importance of DNS to AD?
When you install Active Directory on a server, you promote the server to the role of a domain controller for a specified domain. When completing this process, you are prompted to specify a DNS domain name for the Active Directory domain for which you are joining and promoting the server.If during this process, a DNS server authoritative for the domain that you specified either cannot be located on the network or does not support the DNS dynamic update protocol, you are prompted with the option to install a DNS server. This option is provided because a DNS server is required to locate this server or other domain controllers for members of an Active Directory domain
What do SRV DNS resource records define?
http://technet.microsoft.com/en-us/library/cc961719.aspx
What type of update allows client computers to register and update their resource records with a DNS server whenever changes occur?
dynamic
A resource records are no longer being updated What is the most likely explanation for this problem?
There is problem with the DNS server or the DNS services running on the machine.check it. you can clear the dns cache as well i.e ipconfig /flushdns.register the dns ipconfig /registerdns. check the conncetivity with oing and nslookup for primary dns server as well. this will resolve the issue
What is the main purpose of SRV records?
the main purpose of srv record is to know whether the AD installation was successfull. ie we can find these records in DNS.these indicate that the AD has communicated with the DNS during it's installation
Are the SRV records of a child domain updated automatically during Active Directory installation?
After running DCPROMO, A text file containing the appropriate DNS resource records for the domain controller is created. The file called Netlogon.dns is created in the %systemroot%\System32\config folder and contains all the records needed to register the resource records of the domain controller. Netlogon.dns is used by the Windows 2000 NetLogon service and to support Active Directory for non-Windows 2000 DNS servers. If you are using a DNS server that supports the SRV resource record but does not support dynamic updates (such as a UNIX-based DNS server or a Windows NT Server 4.0 DNS server), you can import the records in Netlogon.dns into the appropriate primary zone file to manually configure the primary zone on that server to support Active Directory. so if you are using w2k with dynamic update it will automatically create the SRV
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.
