linux domain lookup

@ Zheng yu Summary   I. symptom: Java httpclient initiates an HTTP request to the WebService interface under the x××× open. x××. com domain name from the master station data center, which is extremely slow. Troubleshooting: 1.1. wget test

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

The role and type of 1.DNS systemThe role of DNS system in the network is to maintain an address database, which records the various host domain names also IP address correspondence, in order to provide the client program forward or reverse the

/Etc/resolv. conf This file is a DNS domain name resolution configuration file. Its format is very simple. Each line starts with a keyword, followed by configuration parameters.Resolv. conf has four keywords:Nameserver # define the IP address of the

What kind of computations do you think are present in a general-purpose computer with modern operating systems that look and must be super fast, without a doubt, the answer is memory access.What kind of computing in a general-purpose computer that

1. Install bindThis software is to provide the software to build a DNS server. Here is not the description of what is the DNS and so on inside the concept of the class of things, because there is a lot of information on the network, so back and

Problem:1. When using a Linux machine, it is often necessary to confirm the current operating system version information, kernel information, etc.The version information of the operating system can be accomplished by the following commands, such as:

What kind of computations do you think are present in a general-purpose computer with modern operating systems that look and must be super fast, without a doubt, the answer is memory access.What kind of computing in a general-purpose computer that

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

1, about/etc/host, hostname and IP configuration file Hosts-the static table lookup for host name (host-Name query-still tables) Hosts file is a Linux system responsible for the rapid resolution of IP address and domain name files, in ASCII format