root@VM-38-204-ubuntu:~# host baidu.com baidu.com has address 220.181.57.216 baidu.com has address 123.125.114.144 baidu.com mail is handled by 15 mx.n.shifen.com. baidu.com mail is handled by 20 mx1.baidu.com. baidu.com mail is handled by 20 jpmx.baidu.com. baidu.com mail is handled by 20 mx50.baidu.com. baidu.com mail is handled by 10 mx.maillb.baidu.com.
root@VM-38-204-ubuntu:~# dig baidu.com ; <<>> DiG 9.10.3-P4-Ubuntu <<>> baidu.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12243 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;baidu.com. IN A ;; ANSWER SECTION: baidu.com. 547 IN A 220.181.57.216 baidu.com. 547 IN A 123.125.114.144 ;; Query time: 0 msec ;; SERVER: 10.236.158.106#53(10.236.158.106) ;; WHEN: Wed Apr 17 11:19:07 CST 2019 ;; MSG SIZE rcvd: 70
root@VM-38-204-ubuntu:~# nslookup baidu.com Server: 10.236.158.106 Address: 10.236.158.106#53 Non-authoritative answer: Name: baidu.com Address: 220.181.57.216 Name: baidu.com Address: 123.125.114.144
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