top level domain lookup

DNS is an application-level protocol, and DNS provides a mechanism for translating a human-readable hostname or domain name into a computer or network-readable digital address, making it possible for the wide application of the interconnection

The data structure and algorithm principle behind MySQL indexFirst, the definitionIndex definition: Index is the data structure that helps MySQL to get data efficiently.Essence: An index is a data structure.Second, B-treeM-order B-tree meet the

Linux can ping IP but cannot ping host domain name resolution reprinted December 25, 2013 10:24:27 13749.vi/etc/nsswitch.confhosts:files Dnsnetworks:files changed to: hos Ts:files DNS Winsnetworks:files if not the same, in the hosts: the original

--------------------------------------------------------------------------------------------------------------------------------------------------------------Vi/etc/nsswitch.confHosts:files DNSNetworks:filesChange to:Hosts:files DNS

Create a second domain tree in the forestNew method for creating a second (or more) domain tree in the forest: First Spring Festival The first domain in this domain tree, and the method to create the first domain is implemented by the method of

Each IP address can have a host name that consists of one or more strings separated by a decimal point. With the hostname, do not memorize each IP device IP address, just remember the relative intuitive meaningful host name on the line. This is the

I. PrefaceIi. Basic Knowledge1. What is an IP address?2. What is a fixed IP address?3. What is a dynamic IP address?4. What is a domain name? What makes a domain name?5. What are subdomain names and second-level domain names?6. What is DNS?7. What

DNS is one of the core Internet protocols. Whether it's surfing the web or programming, you need to know a little bit about it.This article describes in detail The principle of DNS and how to use the tool software to observe its operation. My goal

Originally transferred from http://hi.baidu.com/shyoung/blog/item/b0ccff03fd462481d43f7c5a.html The complete DNS System of the DNS component consists of the DNS server, region, Parser (DNS client), and resource records, and you need to correctly

Each computer in the Internet has a unique IP address that can be connected to the corresponding host by IP address. However, the IP address is a number of abstract numbers, inconvenient memory, it is best to use some meaningful combination of