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Topic: DNS


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 Domain Name System - Wikipedia, the free encyclopedia
This file is now used primarily for troubleshooting DNS errors or mapping local addresses to more organic names (the Hosts file can also be used for ad blocking, or it can be used by spyware to hijack a computer).
Since this can introduce a bootstrapping problem when the name of the nameserver is in the domain about which nothing is yet known, it is occasionally necessary for the nameserver providing the delegation to also provide the IP address of the next nameserver.
And, any DNS changes on your domain other than the NS records and authoritative DNS server names can be nearly instantaneous, if you choose for them to be (by lowering the TTL once or twice ahead of time, and waiting until the old TTL expires before making the change).
en.wikipedia.org /wiki/Domain_Name_System   (3706 words)

  
 Windows 2000 Domain Naming System (DNS)
DNS began in the early days of the Internet when the Internet was a small network established by the Department of Defense for research purposes.
With DNS, the host names reside in a database that can be distributed among multiple servers, decreasing the load on any one server and providing the ability to administer this naming system on a per-partition basis.
The internal DNS namespace may contain a private root, in which case all internal clients that are anticipated to require name resolution must support Name Exclusion List or Proxy Autoconfiguration File to distinguish whether to direct name resolution queries to the proxy server or internal DNS server.
www.microsoft.com /technet/prodtechnol/windows2000serv/plan/w2kdns2.mspx   (14833 words)

  
 DNS   (Site not responding. Last check: 2007-10-22)
DNS was originally based on HOSTS files that were maintained by a centralized Network Information Center.
DNS uses zone files to keep name and IP address database information for the internet domain or hierarchial set of domains.
DNS information is not replicated to domain controllers outside the domain.
www.comptechdoc.org /os/windows/win2k/win2kdns.html   (2480 words)

  
 DNS related RFCs
Mandates that DNS servers should accept, store and return unknown records of unknown type as is. Long overdue, but increases the complexity of implementating DNSSEC and dynamic updates.
A nice generalisation of the DNS lookup algorithm, which can be viewed as a transformation of a domain name into the contents of the associated resource records via delegation rules stored in DNS servers.
DNS isn't a good general directory service, but I don't see it being bad enough that alternatives have enough room to become established.
www.dns.net /dnsrd/rfc   (4288 words)

  
 DNS Resources Directory (DNSRD)
DNS is used mostly to translate between domain names and IP addresses, and to control email delivery.
If DNS fails or is too slow, web sites cannot be located and email delivery stalls.
A selection of overview documents explains DNS from a high-level perspective, while the RFC documents are the official standards.
www.dns.net /dnsrd   (230 words)

  
 [No title]
The DNS tags all data with a class as well as the type, so that we can allow parallel use of different formats for data of type address.
Administrative guidelines on use As a matter of policy, the DNS technical specifications do not mandate a particular tree structure or rules for selecting labels; its goal is to be as general as possible, so that it can be used to build arbitrary applications.
Preferred name syntax The DNS specifications attempt to be as general as possible in the rules Mockapetris [Page 10] RFC 1034 Domain Concepts and Facilities November 1987 for constructing domain names.
www.ietf.org /rfc/rfc1034.txt   (14996 words)

  
 Domain Name System (DNS)
DNS is the protocol through which names are mapped to IP addresses, and vice versa.
DNS is coordinated across the Internet through a somewhat complex system of authoritative root name servers, and other smaller-scale name servers who host and cache individual domain information.
With a local, caching DNS server, the query only has to be made once to the outside world by the caching DNS server.
www.freebsd.org /doc/en_US.ISO8859-1/books/handbook/network-dns.html   (2240 words)

  
 [No title]   (Site not responding. Last check: 2007-10-22)
We are also responsible for oversight of DNS activities by other groups within the IETF to the extent that we review the impact such work will have on the DNS and make recomendations to the working groups and IESG as necessary.
The global DNS namespace has grown to the point where administering the top levels of the tree is nearly as much work as the old NIC host table used to be.
The global DNS database is exactly that, an existing world-wide database representing hosts on six continents and (at least) forty-five countries.
www.ietf.org /html.charters/OLD/dns-charter.html   (570 words)

  
 InterNIC | Domain Name System FAQs
The DNS makes it easier by allowing a familiar string of letters (the "domain name") to be used instead of the arcane IP address.
When a DNS computer queries another computer and asks, "are you the intended recipient of this message?", "yes" and "no" are acceptable answers, but "maybe" is not.
Some, however, overlap the authoritative global DNS root by incorporating the unique, authoritative root information, and then adding new pseudo-TLDs that have not resulted from the consensus-driven process by which official new TLDs are created through ICANN.
www.internic.net /faqs/authoritative-dns.html   (1650 words)

  
 DNS (Domain Name Services, named, ndc)
Reverse DNS for the 192.168.200 subnet (the series of websites with virtual IPs hung off the lo interface).Simply define PTR records for each name for each IP in the subnet, generally one with just the domain and one with a prepended www.
Line 3: The name should always be the fully qualified domain name appearing as an nslookup arg (forward dns) or serving as an answer to a lookup on the IP arg to nslookup (reverse dns).
Line 4: The Address should always be the IP appearing as an nslookup arg (reverse dns) or serving as an answer to a lookup on the Fully Qualified Doman Name arg to nslookup (forward dns).
www.troubleshooters.com /linux/dns.htm   (2970 words)

  
 TCLLIB - Tcl Standard Library: dns
Internet name resolution is a complex business and DNS is only one part of the resolver.
Specify the type of DNS record you are interested in.
Wait for a DNS query to complete and return the status upon completion.
tcllib.sourceforge.net /doc/tcllib_dns.html   (731 words)

  
 Technorati Tag: dns   (Site not responding. Last check: 2007-10-22)
Simplify DNS Management With DNSone Manage DNS/DHCP with a click with DNSone, an all-in-one server appliance that simplifies IP management and makes your network more reliable and secure.
全国各地 DNS 服务器 IP 总汇 当您当地的DNS服务器出问题,造成无法上网时,您可以试用以下的地址: 安徽 pdns=202.102.192.68 adns=202.102.199.68 广东 pdns=202.96.128.143 adns=202.96.128.68 上海...
DNS Lookups and Hosting at Register.com Do it yourself and save - or ask us to help - build the site you want.
technorati.com /tag/dns   (513 words)

  
 Cotse - Connected: An Internet Encyclopedia - Domain Name Service DNS
The crucial DNS documentation is provided in RFC 1034 and RFC 1035.
The Encyclopedia's Programmed Instruction Course has a DNS Section, and the Encyclopedia's software section has a Dig page, discussing use of this free software diagnostic tool.
DNS also plays an important role in Internet mail delivery.
www.cotse.com /CIE/Topics/75.htm   (331 words)

  
 Define domain name system - a Whatis.com definition - see also: DNS
The domain name system (DNS) is the way that Internet domain names are located and translated into Internet Protocol addresses.
Because maintaining a central list of domain name/IP address correspondences would be impractical, the lists of domain names and IP addresses are distributed throughout the Internet in a hierarchy of authority.
There is probably a DNS server within close geographic proximity to your access provider that maps the domain names in your Internet requests or forwards them to other servers in the Internet.
searchnetworking.techtarget.com /sDefinition/0,,sid7_gci213908,00.html   (179 words)

  
 Free Dynamic DNS, Static DNS for Dynamic IP
We provide domain control and DNS management panel to manage your domains through your member account.
With dynamic DNS service, you can map your domain names to servers connected via DSL, cable modem, or any other service that does not provide you with a static IP address.
Our Dynamic DNS have your IP updated in less than 2 minutes, which is the fastest in industry.
www.dnsexit.com   (586 words)

  
 DNS Report   (Site not responding. Last check: 2007-10-22)
This site is a sister site to www.DNSstuff.com, which has many other DNS and networking tools.
For the DNS Report, all you need to do is enter the domain name you wish to have the report made for.
Also, the DNS report may connect to the mail server(s) for your domain; if it does, the mail server(s) will have access to your IP in their logs (to help prevent abuse).
www.dnsreport.com   (306 words)

  
 DNS definition - isp.webopedia.com - The Glossary for Internet Service Providers
The DNS system is, in fact, its own network.
If one DNS server doesn't know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is returned.
The process of configuring DNS involves a few pieces: configuring your DNS server, registering your DNS name, and in some cases, configuring IIS to respond to the requests.
isp.webopedia.com /TERM/D/DNS.html   (540 words)

  
 DNS Stuff: DNS tools, DNS hosting tests, WHOIS, traceroute, ping, and other network and domain name tools.   (Site not responding. Last check: 2007-10-22)
DNS Stuff: DNS tools, DNS hosting tests, WHOIS, traceroute, ping, and other network and domain name tools.
This site has many DNS, networking, and domain registration tools for network administrators, domain owners, users of hosted DNS services, etc. There is no cost for using this site.
If you find these tools are useful, we also use and recommend dnsmadeeasy.com for DNS hosting, GoDaddy for domain registration, and SimpleDNS as a Window DNS server (much better than the Windows version of Bind).
dnsstuff.com   (526 words)

  
 ISC BIND
The BIND DNS Server is used on the vast majority of name serving machines on the Internet, providing a robust and stable architecture on top of which an organization's naming architecture can be built.
The resolver library included in the BIND distribution provides the standard APIs for translation between domain names and Internet addresses and is intended to be linked with applications requiring name service.
There is a current, wide scale Kashpureff-style DNS cache corruption attack which depends on BIND4 and BIND8 as ``forwarders'' targets.
www.isc.org /products/BIND   (401 words)

  
 DNS, Domain Name System   (Site not responding. Last check: 2007-10-22)
(RFC 2182) A part of the DNS tree, that is treated as a unit.
Obsoleted by: RFC 3401, RFC 3402, RFC 3403, RFC 3404.
Obsoleted by: RFC 4033, RFC 4034, RFC 4035.
www.networksorcery.com /enp/protocol/dns.htm   (2042 words)

  
 Howstuffworks "How Domain Name Servers Work"
Domain name servers, or DNS, are an incredibly important but completely hidden part of the Internet, and they are fascinating!
The DNS system forms one of the largest and most active distributed databases on the planet.
In this edition of HowStuffWorks, we will take a look at the DNS system so you can understand how it works and appreciate its amazing capabilities.
computer.howstuffworks.com /dns.htm   (95 words)

  
 Open Source Guide - DNS for Rocket Scientists - Contents   (Site not responding. Last check: 2007-10-22)
This Guide was born out of our first attempts a number of years ago at trying to install a much needed DNS service on an early Redhat Linux system.
We completed the DNS 'rite of passage' and found it a pretty unedifying and pointless experience.
We are outrageously biased but think it is an essential addition to the DNS admin's library.
www.zytrax.com /books/dns   (302 words)

  
 Free DNS service - Easy, web-based domain manager - ZoneEdit.com
Adding more DNS servers to your domain results in reliability and speed.
Give your clients secure access to only their own domains, and they'll save you time and money by editing their own DNS entries.
Dynamic DNS - Full free dynamic DNS support allowing cable modem, dsl, and dial up users to run web sites on your home pc.
www.zoneedit.com   (324 words)

  
 No-IP - Dynamic DNS, Static DNS for Your Dynamic IP
No-IP™ is a leading managed DNS service provider.
We offer a wide range of services pertaining to your internet presence, from managing DNS to getting around ISPs who block port 25.
All of our services take advantage of our global network of redundant DNS and mail servers ensuring 100% uptime.
www.no-ip.com   (123 words)

  
 Dynamic Network Services, Inc. -- DynDNS -- Welcome
DynDNS provides the flexible services and support that you need to establish a strong and reliable Internet presence.
Choose from Custom DNS, Secondary DNS, Recursive DNS, Dynamic DNS or Static DNS.
January 30, 2006 - DynDNS today announced the selection of DynDNS as the sole DNS provider to support the.coop registry.
www.dyndns.com   (130 words)

  
 djbdns: Domain Name System tools
The importance of separating DNS caches from DNS servers
How to run a DNS server in place of an existing BIND server
How to set up a reverse DNS wall
cr.yp.to /djbdns.html   (129 words)

  
 eTrust Spyware Encyclopedia - Distributed DNS Flooder 0.1b   (Site not responding. Last check: 2007-10-22)
DDNSF will send lots of queries to disable DNS.
If DNS daemon software logs incorrect queries (like most of do), affect will be greater.
If not you are still able to disable DNS.
www3.ca.com /securityadvisor/pest/pest.aspx?id=453082521   (125 words)

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