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DNS is an abbreviation for computer domain name system (Domain Name System or Domain Name Service). It consists of a domain name parser and a domain name server. A domain name server is a server that stores the domain names and corresponding IP addresses of all hosts in the network, and has the function of translating domain names into IP addresses.

DNS is an abbreviation for computer domain name system (Domain Name System or Domain Name Service). It consists of a domain name parser and a domain name server. A domain name server is a server that stores the domain names and corresponding IP addresses of all hosts in the network, and has the function of translating domain names into IP addresses.

View / etc/resolv.con file [root@localhost ~] # cat / etc/resolv.conf nameserver 192.168.xxx.xxx#search localdomain [root@localhost ~] # use the nslookup command to view DNS information [root@localhost ~] # nslookup 127.0.0.1 | grep ServerServer: 192.168.xxx.xxx [root@localhost ~] # use the dig command to view DNS information root@localhost ~] # dig DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5;; global options: printcmd;; Got answer:;;-> > HEADER

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