ルータのデフォルトのDNSを使う。
# nslookup -type=ns yahoo.co.jp
サーバー: xxxxx
Address: xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx
権限のない回答:
yahoo.co.jp nameserver = ns01.yahoo.co.jp
yahoo.co.jp nameserver = ns12.yahoo.co.jp
yahoo.co.jp nameserver = ns11.yahoo.co.jp
yahoo.co.jp nameserver = ns02.yahoo.co.jp
ns11.yahoo.co.jp internet address = xxx.xx.xxx.xx
ns12.yahoo.co.jp internet address = xxx.xx.xxx.Xxx
nslookupで調べたnameserverを使う。
nslookup yahoo.co.jp 124.83.255.37
サーバー: xxxxx
Address: xxx.xx.xxx.xx
名前: yahoo.co.jp
Addresses: 182.x.25.2x2
182.22.x4.12x
183.79.2x0.2x1
182.22.3x.25x
183.79.2x9.x52
182.22.x5.12x
182.22.1x.25x
183.79.2x9.1x4
183.79.xx8.2x2
182.22.3x.x24
182.22.x8.2x2
182.22.1x.1x3
183.79.21x.1x4
182.22.2x.2x2
183.79.24X.x24
183.79.x17.12x
183.79.2x9.2x2
183.79.25x.x23
Googleのnameserverを使う。
nslookup yahoo.co.jp 8.8.8.8
サーバー: dns.google
Address: 8.8.8.8
名前: yahoo.co.jp
Addresses: 182.x.25.2x2
182.22.x4.12x
183.79.2x0.2x1
182.22.3x.25x
183.79.2x9.x52
182.22.x5.12x
182.22.1x.25x
183.79.2x9.1x4
183.79.xx8.2x2
182.22.3x.x24
182.22.x8.2x2
182.22.1x.1x3
183.79.21x.1x4
182.22.2x.2x2
183.79.24X.x24
183.79.x17.12x
183.79.2x9.2x2
183.79.25x.x23
