DNS is based on a distributed database that takes some time to update globally.
Dns not updating from dhcp latest newest dating site
The first is "dynamic DNS updating" which refers to systems that are used to update traditional DNS records without manual editing.
These mechanisms are explained in RFC 2136, and use the TSIG mechanism to provide security.
DHCP became an important tool for ISPs as well to manage their address spaces for connecting home and small-business end-users with a single IP address each by implementing network address translation (NAT) at the customer-premises router.
The private network behind these routers uses address space set aside for these purposes (RFC 1918), masqueraded by the NAT device.
End users of Internet access receive an allocation of IP addresses, often only a single address, by their Internet service provider. static), or may change from time to time, a situation called dynamic.
Dynamic addresses are generally given only to residential customers and small businesses, as most enterprises specifically require static addresses.
This feature required that DNS servers be kept current automatically as well.
The first implementations of dynamic DNS fulfilled this purpose: Host computers gained the feature to notify their respective DNS server of the address they had received from a DHCP server or through self-configuration.
This protocol-based DNS update method was documented and standardized in IETF publication RFC 2136 in 1997 and has become a standard part of the DNS protocol (see also nsupdate program).
The explosive growth and proliferation of the Internet into homes brought a growing shortage of available IP addresses.
Dynamic IP addresses present a problem if the customer wants to provide a service to other users on the Internet, such as a web service.