unix - Dig + trace不执行跟踪

Question

挖+ trace google.com

; <<>> DiG 9.10.6 <<>> +trace google.com
;; global options: +cmd
;; Received 12 bytes from 100.98.0.0#53(100.98.0.0) in 388 ms

挖google.com + trace

; <<>> DiG 9.10.6 <<>> google.com +trace
;; global options: +cmd
;; Received 12 bytes from 100.98.0.0#53(100.98.0.0) in 383 ms

我在MacOSX 10.14.1 Mojave上...

优名

Darwin *****.local 18.2.0 Darwin Kernel Version 18.2.0: Fri Oct  5 19:41:49 PDT 2018; root:xnu-4903.221.2~2/RELEASE_X86_64 x86_64

dig的手册页和多个在线线程均指示我正在发出正确的命令，但它未显示任何跟踪信息。它只是说已接收到12个字节，并且已解析ip地址。

Answer 1

这里没有Mac，但这可能与您的DNS服务器有关。您是否尝试过另一台服务器(如8.8.8.8)？

当使用127.0.0.53作为名称服务器时:

; <<>> DiG 9.11.3-1ubuntu1.3-Ubuntu <<>> +trace stackoverflow.com
;; global options: +cmd
;; Received 28 bytes from 127.0.0.53#53(127.0.0.53) in 0 ms

使用Google的名称服务器时:

dig @8.8.8.8 +trace stackoverflow.com

; <<>> DiG 9.11.3-1ubuntu1.3-Ubuntu <<>> @8.8.8.8 +trace stackoverflow.com
; (1 server found)
;; global options: +cmd
.           303502  IN  NS  j.root-servers.net.
.           303502  IN  NS  d.root-servers.net.
.           303502  IN  NS  g.root-servers.net.
.           303502  IN  NS  a.root-servers.net.
.           303502  IN  NS  b.root-servers.net.
.           303502  IN  NS  f.root-servers.net.
.           303502  IN  NS  i.root-servers.net.
.           303502  IN  NS  m.root-servers.net.
.           303502  IN  NS  k.root-servers.net.
.           303502  IN  NS  e.root-servers.net.
.           303502  IN  NS  h.root-servers.net.
.           303502  IN  NS  c.root-servers.net.
.           303502  IN  NS  l.root-servers.net.
;; Received 779 bytes from 8.8.8.8#53(8.8.8.8) in 13 ms

com.            172800  IN  NS  a.gtld-servers.net.
com.            172800  IN  NS  b.gtld-servers.net.
com.            172800  IN  NS  c.gtld-servers.net.
com.            172800  IN  NS  d.gtld-servers.net.
com.            172800  IN  NS  e.gtld-servers.net.
com.            172800  IN  NS  f.gtld-servers.net.
com.            172800  IN  NS  g.gtld-servers.net.
com.            172800  IN  NS  h.gtld-servers.net.
com.            172800  IN  NS  i.gtld-servers.net.
com.            172800  IN  NS  j.gtld-servers.net.
com.            172800  IN  NS  k.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 20190327050000 20190314040000 16749 . VxquNuaeJ1aPlma/m40LpD1IelriWx9IPUhLA8fCqvZNLjfsyCofrj++ FjM9w2PRu/vneFdQnYpqI5A6xRf9NqfUVh8AIRoSU/3oGZLU3ce8VOq/ YwIyL/eAGTIMOrcrd51s2ZReOoLDjf4hp/Z6VVOUZpnOxiwQOjGM0Dt+ UIhNlOni0msLDFHW0vYvDxOM3a15S4itfmWrzS2wOU5oqA1scclYRILB tEsHhGVvrVcrv2YLlOshWyrERm10/fHoiHzpniQo/Zfjke4HEjSLxpH1 rWnXm8isVhjKp8W3R4ivLxvTRKeE/7jUP410znIPLg1Ss2m+hAsyl5sR uvzHMQ==
;; Received 1177 bytes from 198.97.190.53#53(h.root-servers.net) in 337 ms

stackoverflow.com.  172800  IN  NS  ns-358.awsdns-44.com.
stackoverflow.com.  172800  IN  NS  ns-1033.awsdns-01.org.
stackoverflow.com.  172800  IN  NS  ns-cloud-e1.googledomains.com.
stackoverflow.com.  172800  IN  NS  ns-cloud-e2.googledomains.com.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OSM6QPQR81H5M9A  NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20190320044718 20190313033718 16883 com. YTcSUlhFZgK8Wgeu+V93aK5p2ZW3/AYky/JnYF2LAch69qEoGKl0GwHP Qom4epMAf7OAzacjStETSpV1+vAXr0WbdjQ90rnFhkx+sWAYcl8IyKSd nipHSI2CFZJUsIzBl5vyVebRT2erkpQZvseO2jkGZjWxhmQh0APBI+Ju KSI=
QJLANLBLFPUKKIO73G776E7389OP43C0.com. 86400 IN NSEC3 1 1 0 - QJLBMGGUF1TGTFH7U479EFSNO84B6UPD  NS DS RRSIG
QJLANLBLFPUKKIO73G776E7389OP43C0.com. 86400 IN RRSIG NSEC3 8 2 86400 20190319051405 20190312040405 16883 com. jEIe8uoPLyZ90nMFJyX9MeheKiww+qbCV06AqonQaoKA2pwvbhVLd5H9 SEdGIWJvBn2RIJHSNJ3fbrj2GUYXTPmUAL7TglhxdSzswhIkoB1VOma2 Bd8/47MaCPCzPZ5SX2LRqo0njQX4I1VpvtiH/f8xbbMJUj4odyBWMK9D W3U=
;; Received 767 bytes from 192.55.83.30#53(m.gtld-servers.net) in 454 ms

stackoverflow.com.  300 IN  A   151.101.1.69
stackoverflow.com.  300 IN  A   151.101.65.69
stackoverflow.com.  300 IN  A   151.101.129.69
stackoverflow.com.  300 IN  A   151.101.193.69
;; Received 110 bytes from 216.239.34.110#53(ns-cloud-e2.googledomains.com) in 119 ms