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Topic: NS record

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Domain Name System

FASM

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Seguin, Texas

Tonopah Test Range

East London

	DNS Resource Records
		Each MX record specifies a domain name (which must have an A record associated with it) and a priority; a list of mail exchangers is then ordered by priority when delivering mail.
		MX records provide one level of indirection in mapping the domain part of an email address to a list of host names which are meant to receive mail for that domain name.
		NS records are the basic infrastructure on which DNS is built; they stitch together distributed zone files into a directed graph that can be efficiently searched.
	www.dns.net /dnsrd/rr.html (467 words)

	DNS record types
		NS, or name server, records are used to tell other DNS servers which DNS servers to contact in order to find out information for a given DNS node.
		For example, a NS record for example.com tells other DNS servers which DNS servers to contact in order to obtain information for the example.com domain.
		Because of the way MaraDNS is set up, all of the NS records for a given DNS zone need to be placed immediately after the SOA record.
	www.maradns.org /tutorial/recordtypes.html (549 words)

	Record Collections
		NS record collections are typically used for indexed files and directories.
		Records may be added, modified, and deleted in any time sequence within NS record collections.
		The contents of an ES record collection may be thought of as a sequence of records in the same order as they were entered into the record collection.
	www.agorics.com /Library/KeyKos/Gnosis/76.html (2439 words)

	Zone file example
		It has host records for www.mydomain.com, router.mydomain.com (it points to a private IP, but that is OK and can be very useful for your own internal networks), proxy.mydomain.com, and several others including A records for the mail servers mail and mail2.
		Because of this, it is important that an A-record for the referenced DNS server exists (not necessarily on your server, but wherever it belongs), otherwise there may not be any way to find that DNS server and communicate with it.
		Because of this, it is important that an A-record for the referenced mail server exists (not necessarily on your server, but wherever it belongs), otherwise there may not be any way to find that mail server and communicate with it.
	www.microtech.co.gg /dns/zonefileaxample.php (933 words)

	[No title]
		NS record in a zone indicates that this name is a delegation and the NS record lists the authorative servers for the real zone.
		DS records MUST NOT point to KEY records where flag field has folowing bit settings, bit 0 (no authentication) is set, bit 6 MUST be set to 0 and bit 7 MUST be set to 1 (zone key).
		For MX record the cost where the target of the MX record is in the same zone as the MX record the costs are N+2 and 2N+2.
	www.ietf.org /proceedings/01dec/I-D/draft-ietf-dnsext-delegation-signer-04.txt (3093 words)

	Guide to reverse zones
		The SOA and initial NS records are the same as any normal zone.
		The SOA record is the first record in a properly configured zone.
		An NS record declares the nameservers that serve a given zone.
	www.apnic.net /db/revdel.html (987 words)

	What is domain DNS Management ? :IndicHosts.net
		CNAME Records can also be used when a computer or service needs to be renamed, to temporarily allow access through both the old and new name.
		These NS Records have the same name as the Zone in which they are located.
		This A Record is referred to as a Glue Record, because it doesn't really belong in the Parent Zone, but is necessary to locate the DNS Server for the delegated sub-domain.
	indichosts.net /domain-name-registration/dns-management.htm (890 words)

	DNS Made Easy!
		Wildcard Records give you the ability to map all (or a section) of the records in your domain to one IP.
		If you create a record that is part of your domain (and inclusive of the wild card set) then only that record is directed to the other IP and everything else will goto the Wildcard record.
		The name field of an MX record contains the host name which appears in the e-mail address, and the data field contains the hostname of the server to which the mail should be delivered.
	www.dnsmadeeasy.com /recordtypes.html (1029 words)

	DNS server encountered invalid NS record, in zone file name , line number. (Windows 2000 Error and Event Messages Help) (Site not responding. Last check: 2007-10-14)
		NS records must be at zone root node or be at root of sub-zone being delegated.
		Name Server (NS) records specify the names of the servers used to manage domains.
		An NS record might be invalid because it contains a format error, or because it contains the name of a server that is not part of the domain or not authoritative for any of the zones within the domain.
	msdn.microsoft.com /library/en-us/w2kmsgs/3463.asp?frame=true (131 words)

	Free DNS, Managed DNS, Backup DNS, web-based zone manager at dns.widge.net
		An NS record declares that a given zone is served by a given name server.
		If the name of the NS record is the name of the zone it appears in, it is an authority record.
		If the name of the NS record is that of a descendant zone, then it is a delegation record.
	dns.widge.net /faq.wdg?n=0056 (78 words)

	DNS Report - 2bluenewts.com (Site not responding. Last check: 2007-10-14)
		The NS records at all your nameservers are identical.
		There appear to be no CNAMEs returned for A records lookups from your MX records (CNAMEs are prohibited in MX records, according to RFC974, RFC1034 3.6.2, RFC1912 2.4, and RFC2181 10.3).
		You may want to add an SPF record ASAP, as 01 Oct 2004 was the target date for domains to have SPF records in place (Hotmail, for example, started checking SPF records on 01 Oct 2004).
	www.dnsreport.com /tools/dnsreport.ch?domain=2bluenewts.com (1613 words)

	About DNS zone records
		WEBppliance automatically creates a Name Server (NS) record for the zone’s name server, and Host (A) records for the FTP server and the domain name (www), but you can add others.
		Another type of zone record, called an SOA record, serves a very specific purpose and is described in the topic About SOA records.
		This record tells the DNS server that any requests made to the alias name are to be redirected to the host to which the alias points.
	web8.asp.be /help/Appliance/oh_appl_about_DNS_zone_records.htm (357 words)

	Quick guide to DNS. (Site not responding. Last check: 2007-10-14)
		The NS Record : The NS (Name Server) record identifies the servers that are authoritative for a given zone.
		The CNAME Record : The CNAME (Canonical name) records are used to assign nicknames (or aliase) to a host.
		Most sites do not use HINFO records because of security reasons, if everyone knows what type of hardware you have and what type of OS is running, you are more vulnerable to break-ins.
	users.aber.ac.uk /ahj/dnshome1.html (419 words)

	DNSSEC in the .nl zone mini HOWTO
		And if the nameservers of the child zone themselves have names within their own zone (for example when ns.ct.nl is an NS record for ct.nl), then it also needs to pass that information to pass along as well ; the so-called glue records.
		The DS record itself is signed by the parent-zone with a SIG record.
		Bind9 will keep serving the expired record, and leave it up to the resolvers querying it to determine whether or not to pass the expired record on to the application.
	www.xtdnet.nl /paul/dnssec (3060 words)

	Zones and Zone Servers (Linktionary term)
		Type = A (Address) Indicates the record is a name to IP address mapping.
		A root server in a domain contains an NS record for each second-level server, along with an A record that provides the IP address of the server.
		Finally, the TTL (Time To Live) field specifies how long the record from another server should be allowed to remain cached before it is removed.
	www.linktionary.com /z/zones.html (472 words)

	Name Servers
		Periodically, the primary's SOA record for the domain is checked for changes in its SERIAL field.
		Such replies have empty answer sections, and NS records in the authority section pointing to the other servers.
		Every resource record has a Time To Live (TTL) field (distinct from the IP TTL field) which specifies the number of seconds the record may be cached before it must be discarded.
	www.freesoft.org /CIE/Topics/76.htm (663 words)

	Process Software
		Each subdomain that is separately nameserved must have at least one corresponding name service (NS) record.
		The value of an NS record for a domain is the name of the nameserver for that domain.
		List an NS record for each primary or secondary name server for a domain.
	www.process.com /techsupport/multinet/787/20.html (57 words)

	NS (DNS Server)
		Because of this, it is important that an A-record for the referenced DNS server exists (not necessarily on your DNS server, but wherever it belongs), otherwise there may not be any way to connect with that DNS server.
		If an NS-record delegates a sub-name ("subname.yourname.com") to a DNS server with a name in that sub-name ("ns1.subname.yourname.com"), an A-record for that server (""ns1.subname.yourname.com") must exist in the parent zone ("yourname.com").
		This A-record is called a "glue record", because it doesn't really belong in the parent zone, but is necessary to locate the DNS server for the delegated sub-name.
	www.simpledns.com /help/rec_ns.htm (330 words)

	kbAlertz: (231308) - If you add an NS record to a DNS zone, when you restart the DNS server the glue NS records are ...
		If you add an NS record to a DNS zone, when you restart the DNS server the glue NS records are missing.
		When the DNS Administration tool causes the DNS server to add an NS record to the database, the server assigns the record the same authority level as other records in the zone.
		Because the new records have the highest authority level and are the first in the list, the existing records that are read from the zone file are dropped.
	www.kbalertz.com /kb_231308.aspx (710 words)

	Chapter 8 - NS Record
		They are required because DNS queries respond with an authority section listing all the authoritative name servers, for sub-domains they are required to allow referral to take place.
		By convention name servers are defined immediately after the SOA record but can be defined anywhere convenient in the zone file.
		Strictly glue records are essential only with referrals which include name servers within the domain being queried.
	www.zytrax.com /books/dns/ch8/ns.html (845 words)

	Definition of Domain name system (Site not responding. Last check: 2007-10-14)
		The domain to mail exchanger mapping provided by MX records accommodates another layer of fault tolerance and load distribution on top of the name to IP address mapping.
		A TXT record allows an administrator to insert arbitrary text into a DNS record; this record is also used in the Sender Policy Framework specification.
		Other kinds of records simply provide information (for example, a LOC record gives the physical location of a host), or experimental data (for example, a WKS record gives a list of servers offering some well-known service such as HTTP or POP3 for a domain).
	www.wordiq.com /definition/Domain_name_system (2761 words)

	Chapter 8 - SOA Record
		There is only one SOA record allowed in a zone file.
		The name server defined in the SOA record will ALWAYS have a NS record (there may be more than one NS record).
		For the sake of completeness the NS record is shown in the example fragments.
	www.zytrax.com /books/dns/ch8/soa.html (1307 words)

	Domain Name Service Basics
		To add an MX record using the DNS Manager, highlight the zone, select New Record from the DNS menu, and choose MX Record from the Record Type (Figure 4.23).
		The MX record in the DNS shown in Figure 4.24 indicates that the server chora.sakes.com is handling mail for the domain patmos.sakes.com, so Judy's mailer forwards the mail there.
		Now, to add the PTR records, highlight the zone, select New Record from the DNS menu, and choose a PTR Record from the Record Type, as shown in Figure 4.27.
	www.windowsitlibrary.com /Content/212/03/3.html (2128 words)

	DNS Testing (Site not responding. Last check: 2007-10-14)
		This test checks whether an NS record in the zone refers to a CNAME record instead of an A record.
		Some administrators consider HINFO record as a safety hazard as they can reveal helpful information about hosts in the zone to unauthorized parties.
		This test checks whether any records in the zone contain TTL values which are unusually high or low.
	www.digisecmalta.com /html/dns_testing.html (1623 words)

	[No title]
		"\n$@"); } return $zone; } sub get_soa { my $ze = shift; my $rp_name = $ze->maintainer(); $rp_name =~ s/@/./; # Construct a serial number: we can't get month number with # leading zeroes from Date::Format, so jump through hoops.
		) { if (/^\s+$/) { next; } my @record = split(/\s+/); eval { verify_record([@record]); } ; if ($@) { die("$@Malformed record $_\n"); } $data.= join("\t", @record).
		die('No NS record'); scalar(@$ns) == 3 or die("A NS record needs 3 field\n"); eval { verify_localname($ns->[0]); verify_fqdn($ns->[2]); } ; @$ and die("$@Bad NS record\n"); } sub verify_MX_record { my $mx = shift()
	www.mit.edu /afs/sipb/project/zoned/src/ZoneFile.pm (521 words)

	June 15 - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-14)
		June 15 is the 166th day of the year in the Gregorian calendar (167th in leap years), with 199 days remaining.
		763 BC - Assyrians record a solar eclipse that will be used to fix the chronology of Mesopotamian history.
		1911 - Tabulating Computing Recording Corporation (IBM) is incorporated.
	encyclopedia.worldsearch.com /june_15.htm (1417 words)

	Adding a Name Server (NS) record (Site not responding. Last check: 2007-10-14)
		change the NS record to reflect the name of that server.
		Also, if you intend to add additional remote DNS servers, you must create an NS record for each additional server.
		Add a Host (A) record before you create the NS record.
	www.velnet.co.uk /ensim_admin2/oh_appl_bind_add_ns.htm (299 words)

	[No title]
		Beware that cache times below 300 seconds will be treated as 300 by some clients, and NS cache times below 2 seconds can cause lookup failures.
		so that the line's DNS records are not cached for more than a few seconds past the ending time.
		If there are more than 8 records, it returns a random set of 8.
	cr.yp.to /djbdns/tinydns-data.html (707 words)

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