For dns Problems In debian, refer to Debian, the Linux release technology. For details, refer to the following section. A debian machine cannot ping the Domain Name
The error message "unknow hosts" indicates that DNS is not set.
Cat/etc/reslove. conf
Nameserver 202.106.0.20
It is strange to use the nslookup and dig commands. The two packages are not installed.
First, apt-get install dnsutils.
Then dig-t a www.baidu.com
; <> DiG 9.4.2 <>-t a www.baidu.com
; Global options: printcmd
; Got answer:
;-> HEADER <-opcode: QUERY, status: NOERROR, id: 5977
; Flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 4, ADDITIONAL: 0
; Question section:
; Www.baidu.com. IN
; Answer section:
Www.baidu.com. 1137 in cname www.a.shifen.com.
Www.a.shifen.com. 1137 in a 202.108.22.5
Www.a.shifen.com. 1137 in a 202.108.22.43
; Authority section:
A.shifen.com. 71693 in ns ns6.a.shifen.com.
A.shifen.com. 71693 in ns ns1.a.shifen.com.
A.shifen.com. 71693 in ns ns3.a.shifen.com.
A.shifen.com. 71693 in ns ns5.a.shifen.com.
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