003dig命令详解
一、dns解析追踪
背景: 腾讯云从免费版本转到企业版本后,没有更改DNS服务器指向集群,但实际去看其实已经NS到最新了,如下所示
❯ dig +trace taicharge.com ; <<>> DiG 9.10.6 <<>> +trace taicharge.com ;; global options: +cmd . 433168 IN NS e.root-servers.net. . 433168 IN NS k.root-servers.net. . 433168 IN NS i.root-servers.net. . 433168 IN NS h.root-servers.net. . 433168 IN NS m.root-servers.net. . 433168 IN NS c.root-servers.net. . 433168 IN NS b.root-servers.net. . 433168 IN NS d.root-servers.net. . 433168 IN NS j.root-servers.net. . 433168 IN NS a.root-servers.net. . 433168 IN NS f.root-servers.net. . 433168 IN NS l.root-servers.net. . 433168 IN NS g.root-servers.net. ;; Received 392 bytes from 219.141.136.10#53(219.141.136.10) in 5 ms com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 86400 IN DS 30909 8 2 E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CF C41A5766 com. 86400 IN RRSIG DS 8 1 86400 20230214050000 20230201040000 951 . S5k36lgEvzNvMtxTDpMT62B4+mhyEn09UB2sovjzUS4UxfhKUVCWweY6 uSt43dYEd0zM8u/iLGw5QWsUvi/axqg1hbCtNqmkajMi2j7c6BOu+HZO Xh7vmKf9ajimXpcKlUVcTkqusc5I9XbBNFHEhqHFgtAmgdat6v6cA6Du D5SdfriaeIxpwthUgesY6eqt7S16rUjiRL6qzKbgT9BdngYXP7bNM6lK 3nNV06iU6v0f9TVYuxjlw7alZ7kcoBawoYMuFJ70A48ya2gb+XPKa8I4 4xXliBzVDfTI5GVydpTO2/5YjEYvjZbCJ1b7WycnXZRenI6GOMQfTVqJ NpOpGQ== ;; Received 1173 bytes from 192.203.230.10#53(e.root-servers.net) in 157 ms taicharge.com. 172800 IN NS decahedron.dnspod.net. taicharge.com. 172800 IN NS lightning.dnspod.net. CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q2D6NI4I7EQH8NA30NS61O48UL8G5 NS SOA RRSIG DNSKEY NSEC3PARAM CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20230207052257 20230131041257 36739 com. bIC3JRS3i5tgfH6Kn2lqyHxTgaWT5HPky5puq3ue83uT+ahEG6nNnuR8 ydUphSSrvIYJBJ1ny0zEG1AG/4NLRiaULJzu4TCW7i6Nh5uD/7x+n1Jp v87utrvOtBslzssHr4rBX/tyi/k8dzDl4DwWdeaVdY4aTiP++q/ePyOI sYiaflykYTR9YJVvL4AyoXClBFGMW9MUWLv6DtMNl2w8Lg== HHC96UAS6EOJ1NEO9620R73F9VA1940E.com. 86400 IN NSEC3 1 1 0 - HHCA4N29ERH64EA5KQC7I0DAKED116FA NS DS RRSIG HHC96UAS6EOJ1NEO9620R73F9VA1940E.com. 86400 IN RRSIG NSEC3 8 2 86400 20230208063449 20230201052449 36739 com. SwzllQ1uxnUon/t2/kWQdujlrCqFSPH18HEUb0UmlzEkfHD2V+DegG4+ R27QZnfiM26XP5IJ1IqojxkggSgvQkr2Pt+fzjMgK7Jgik8xQs4H1lOo ZrnUDmjo+i+19lHsslOcX48ChCRHb7+qCmhai5XMiz9df+D8dVRKiMBN 5sszU6fvcOr6Ri+2Yu/jjttdNyUQXPrgBbrPvQoO1d90PA== ;; Received 650 bytes from 192.41.162.30#53(l.gtld-servers.net) in 152 ms taicharge.com. 600 IN A 81.70.119.126 taicharge.com. 86400 IN NS ns3.dnsv4.com. taicharge.com. 86400 IN NS ns4.dnsv4.com. ;; Received 112 bytes from 112.80.181.45#53(decahedron.dnspod.net) in 32 ms
