我有两个不同的 FreeBSD 服务器(不同的托管公司),它们都表现出相同的行为:它们为每个不存在的域选择一个特定的 IP 地址 (216.239.120.238)。
nslookup 失败,因为它应该......
$ nslookup thisdomainsurelydoesntexist.com
Server: xx.xx.229.3
Address: xx.xx.229.3#53
** server can't find thisdomainsurelydoesntexist.com: NXDOMAIN
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挖掘给我:
$ dig thisdomainsurelydoesntexist.com
; <<>> DiG 9.6.-ESV-R5-P1 <<>> thisdomainsurelydoesntexist.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51717
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;thisdomainsurelydoesntexist.com. IN A
;; AUTHORITY SECTION:
com. 900 IN SOA a.gtld-servers.net. nstld.verisign-grs.com. 1370378827 1800 900 604800 86400
;; …
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