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Dynamic DNS is a system which allows the domain name data held in a name server to be updated in real time. The most common use for this is in allowing an Internet domain name to be assigned to a computer with a varying (dynamic) IP address. This makes it possible for other sites on the Internet to establish connections to the machine without needing to track the IP address themselves. A common use is for running server software on a computer that has a dynamic IP address, as is the case with many consumer Internet service providers. The domain name system (DNS) stores and associates many types of information with domain names, but most importantly, it translates domain names (computer hostnames) to IP addresses. ...
A name server is a computer server that implements a name service protocol. ...
The term domain name has multiple related meanings: A name that is entered into a computer (e. ...
An IP address (Internet Protocol Address) is a unique address that devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP). ...
This article or section does not cite its references or sources. ...
An Internet service provider (abbr. ...
Dynamic DNS service is provided on a large scale by various DNS hosting services, which retain the current addresses in a database and provide a "client" program to the user which will send an update to the service whenever the server's IP address has changed. Many routers and other networking components contain a feature such as this in their firmware. The first router to support Dynamic DNS was the UMAX UGate-3000 in 1999, which supported the TZO.COM dynamic DNS service.[1] A DNS hosting service is a service that runs Domain Name System servers. ...
The term database originated within the computer industry. ...
In computing, a client is a system that accesses a (remote) service on another computer by some kind of network. ...
A D-Link Wi-Fi NAT router, popular for home and small office networks A router is a computer networking device that forwards data packets across a network toward their destinations, through a process known as routing. ...
A computer network is a system for communication between computers. ...
In computing, firmware is software that is embedded in a hardware device. ...
To implement dynamic DNS it is necessary to set the maximum caching time of the domain to an unusually short period (typically a few minutes). This prevents other nodes on the Internet from retaining the old address in their DNS cache, so that they will typically contact the name server of the domain for each new connection. The domain name system (DNS) stores and associates many types of information with domain names, but most importantly, it translates domain names (computer hostnames) to IP addresses. ...
The domain name system (DNS) stores and associates many types of information with domain names, but most importantly, it translates domain names (computer hostnames) to IP addresses. ...
Dynamic DNS is an integral part of Active Directory, due in part to the fact that domain controllers register their SRV resource records in DNS so that other computers in the Domain (or Forest) can find them. Typically Active Directory is managed using the graphical Microsoft Management Console. ...
In Windows NT and Windows 2000 networking, the domain controller (DC) is the server that responds to security authentication requests (logging in, checking permissions, etc. ...
An SRV record or Service record is a category of data in the Internet Domain Name System specifying information on available services. ...
The term 'dynamic DNS' can be applied to any mechanism for changing a DNS entry from a DNS client. For example, there are many commercial and noncommercial Dynamic DNS providers which provide Dynamic DNS service. Updates by clients are not done as described in RFC 2136 or RFC 2845. The ddclient program, for example, sends HTTP GET requests to the Dynamic DNS provider's server which in turn updates the DNS entry.
'Dynamic DNS' is documented by RFC 2136 and is related to nsupdate, a utility to utilize DDNS protocol. As updating DNS can be dangerous, TSIG can be used to authenticate dynamic DNS updates to a DNS server using HMAC-MD5 hash key. This key apparently needs to be installed on every client that needs to utilize DDNS securely. Microsoft elected to develop an alternative GSS-TSIG, which uses Kerberos (protocol) for authentication and thus avoiding the need for manual installation of hash keys. GSS-TSIG is a proposed standard and is the only authentication supported by Microsoft Windows 2000, Windows XP, and Windows 2003. Please wikify (format) this article as suggested in the Guide to layout and the Manual of Style. ...
TSIG (Transaction SIGnature) is a computer networking protocol. ...
A keyed-hash message authentication code, or HMAC, is a type of message authentication code (MAC) calculated using a cryptographic hash function in combination with a secret key. ...
In cryptography, MD5 (Message-Digest algorithm 5) is a widely used cryptographic hash function with a 128-bit hash value. ...
Kerberos is a computer network authentication protocol which allows individuals communicating over an insecure network to prove their identity to one another in a secure manner. ...
Windows 2000 (also referred to as Win2K) is a preemptible, interruptible, graphical and business-oriented operating system that is designed to work with either uniprocessor or symmetric multi-processor 32-bit Intel x86 computers. ...
Windows XP is a line of operating systems developed by Microsoft for use on general-purpose computer systems, including home and business desktops, notebook computers, and media centers. ...
Windows Server 2003 is a server operating system produced by Microsoft. ...
Although this authentication method is not supported in BIND, which supports the TSIG authentication scheme set out in RFC 2845, Windows DNS is otherwise fully interoperable with BIND in versions of BIND subsequent to 8.2.2 (when SRV Record support was introduced), and Microsoft has for some time provided information on BIND interoperability with windows DNS name spaces. An SRV record or Service record is a category of data in the Internet Domain Name System specifying information on available services. ...
See also
The domain name system (DNS) stores and associates many types of information with domain names, but most importantly, it translates domain names (computer hostnames) to IP addresses. ...
A DNS hosting service is a service that runs Domain Name System servers. ...
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