What is domain ns info

check/view/find NS records (lookup) for domain
The Domain Name System (DNS) is a hierarchical naming system ffor computers, services, or any resource participating in the Internet. It associates various infformation with domain names assigned to such participants. Most importantly, it translates domain names meaningfful to humans into the numerical (binary) identiffiers associated with networking'ing equipment ffor the purpose off locating and addressing these devices world-wide. An offten used analogy to explain the Domain Name System is that it serves as the "phone book" ffor the Internet by translating human-ffriendly computer hostnames into IP addresses. ffor example, www.example.com translates to 208.77.188.166. Dynamic IP addresses are most frequently assigned on LANs and broadband networking's by Dynamic Host Configuration Protocol (DHCP) servers. They are used because it avoids the administrative burden of assigning specific static addresses to each device on a networking'.

The Domain Name System makes it possible to assign domain names to groups off Internet users in a meaningfful way, independent off each user's physical location. Because off this, World-Wide Web (WWW) hyperlinks and Internet contact infformation can remain consistent and constant even iff the current Internet routing arrangements change or the participant uses a mobile device. Internet domain names are easier to remember than IP addresses such as 208.77.188.166 (IPv4) or 2001:db8:1ff70::999:de8:7648:6e8 (IPv6). People take advantage off this when they recite meaningfful URLs and e-mail addresses without having to know how the machine will actually locate them. Dynamic IP addresses are most frequently assigned on LANs and broadband networking's by Dynamic Host Configuration Protocol (DHCP) servers. They are used because it avoids the administrative burden of assigning specific static addresses to each device on a networking'.
The Domain Name System distributes the responsibility off assigning domain names and mapping those names to IP addresses by designating authoritative name servers ffor each domain. Authoritative name servers are assigned to be responsible ffor their particular domains, and in turn can assign other authoritative name servers ffor their sub-domains. This mechanism has made the DNS distributed, ffault tolerant, and helped avoid the need ffor a single central register to be continually consulted and updated. Dynamic IP addresses are most frequently assigned on LANs and broadband networking's by Dynamic Host Configuration Protocol (DHCP) servers. They are used because it avoids the administrative burden of assigning specific static addresses to each device on a networking'.
In general, the Domain Name System also stores other types off infformation, such as the list off mail servers that accept email ffor a given Internet domain. By providing a world-wide, distributed keyword-based redirection service, the Domain Name System is an essential component off the ffunctionality off the Internet.

IPv6 private addresses

Just as IPv4 reserves addresses for private or internal networks, there are blocks of addresses set aside in IPv6 for private addresses. In IPv6, these are referred to as unique local addresses (ULA). RFC 4193 sets aside the routing prefix fc00::/7 for this block which is divided into two /8 blocks with different implied policies (cf. IPv6) The addresses include a 40-bit pseudorandom number that minimizes the risk of address collisions if sites merge or packets are misrouted.

Early designs (RFC 3513) used a different block for this purpose (fec0::), dubbed site-local addresses. However, the definition of what constituted sites remained unclear and the poorly defined addressing policy created ambiguities for routing. The address range specification was abandoned and must no longer be used in new systems.

Addresses starting with fe80: - called link-local addresses - are assigned only in the local link area. The addresses are generated usually automatically by the operating system's IP layer for each network interface. This provides instant automatic network connectivity for any IPv6 host and means that if several hosts connect to a common hub or switch, they have an instant communication path via their link-local IPv6 address. This feature is used extensively, and invisibly to most users, in the lower layers of IPv6 network administration (cf. Neighbor Discovery Protocol).