全部產品
Search

搜尋本產品

    Alibaba Cloud DNS：解析生效測試方法

    文件中心

    Alibaba Cloud DNS：解析生效測試方法

    更新時間：Jun 17, 2026

    當遇到網站無法訪問、解析記錄不生效等異常情況時，可通過以下方法先對網域名稱狀態，再對解析記錄生效情況進行排查。

    使用dig/nslookup命令查詢

    一般常用的命令查詢方法是dig（資訊詳細，適合調試）或nslookup（Windows 預設支援）。

    重要

    判斷方法：DNS查詢返回的結果如果和您在Alibaba Cloud DNS中設定的一致，則代表解析已生效。

    如果不一致，則查看緩衝時間，如果緩衝未到期，請等待緩衝到期後再進行測試。

    如果緩衝到期且結果不一致，參考解析不生效問題快速排查。

    dig命令

    1 . 最常用的查詢命令

    說明

    命令：dig 您的網域名稱（樣本：dig example.com）

    $ dig example.com
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> example.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7585
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;example.com.                   IN      A

;; ANSWER SECTION:
example.com.            10      IN      A       96.7.128.175
example.com.            10      IN      A       96.7.128.198
example.com.            10      IN      A       23.192.228.84
example.com.            10      IN      A       23.215.0.136
example.com.            10      IN      A       23.192.228.80
example.com.            10      IN      A       23.215.0.138

;; Query time: 0 msec
;; WHEN: Tue Feb 18 13:31:55 CST 2025
;; MSG SIZE  rcvd: 125

    2 . 根據記錄類型進行查詢，比如MX，CNAME，NS，PTR等，只需將類型加在命令後面即可。

    說明

    命令：dig 您的網域名稱 記錄類型（樣本：dig example.com NS）

    $ dig example.com NS
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> example.com NS
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29146
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;example.com.                   IN      NS

;; ANSWER SECTION:
example.com.            10      IN      NS      b.iana-servers.net.
example.com.            10      IN      NS      a.iana-servers.net.

;; Query time: 0 msec
;; WHEN: Tue Feb 18 15:03:03 CST 2025
;; MSG SIZE  rcvd: 93

    解析未生效、或者未設定解析記錄情境的樣本（樣本：dig example.com CNAME）。

    $ dig example.com cname
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> example.com cname
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39890
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;example.com.                   IN      CNAME

;; AUTHORITY SECTION:
example.com.            5       IN      SOA     ns.icann.org. noc.dns.icann.org. 2025011545 7200 3600 1209600 3600

;; Query time: 143 msec
;; WHEN: Tue Feb 18 13:50:18 CST 2025
;; MSG SIZE  rcvd: 94

    3 . 指定網域名稱DNS伺服器測試解析是否生效的命令，以下以指定Alibaba Cloud DNS伺服器和公用DNS伺服器作為查詢解析是否生效的樣本示範。

    說明

    Alibaba Cloud DNS伺服器命令：dig 您的網域名稱 @ns1.alidns.com （樣本：dig example.com @ns1.alidns.com ）

    公用DNS伺服器命令：dig 您的網域名稱 @223.5.5.5（樣本：dig example.com @223.5.5.5 ）

    $ dig example.com @ns1.alidns.com
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> example.com @ns1.alidns.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32895
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096

;; QUESTION SECTION:
;example.com.                   IN      A

;; AUTHORITY SECTION:
example.com.            600     IN      SOA     ns1.alidns.com. hostmaster.hichina.com. 2025021713 3600 1200 86400 600

;; Query time: 5 msec
;; WHEN: Tue Feb 18 15:22:09 CST 2025
;; MSG SIZE  rcvd: 112
    $ dig example.com @223.5.5.5
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> example.com @223.5.5.5
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42292
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1408

;; QUESTION SECTION:
;example.com.                   IN      A

;; ANSWER SECTION:
example.com.            67      IN      A       96.7.128.175
example.com.            67      IN      A       96.7.128.198
example.com.            67      IN      A       23.215.0.136
example.com.            67      IN      A       23.215.0.138
example.com.            67      IN      A       23.192.228.84
example.com.            67      IN      A       23.192.228.80

;; Query time: 1 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Tue Feb 18 15:16:32 CST 2025
;; MSG SIZE  rcvd: 136

    4 . 使用dig +trace參數，使用這個參數之後將顯示從根域逐級查詢的過程，trace查詢可以看到根域、 頂級域、以及頂層網域的權威伺服器的地址，及其各自的返回結果，這樣對於追蹤DNS解析中的問題有很大的協助。

    說明

    命令：dig <您的網域名稱> +trace（樣本：dig example.com +trace）

    $ dig example.com +trace
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> example.com +trace
;; global options: +cmd
.                       515049  IN      NS      j.root-servers.net.
.                       515049  IN      NS      k.root-servers.net.
.                       515049  IN      NS      a.root-servers.net.
.                       515049  IN      NS      b.root-servers.net.
.                       515049  IN      NS      c.root-servers.net.
.                       515049  IN      NS      d.root-servers.net.
.                       515049  IN      NS      e.root-servers.net.
.                       515049  IN      NS      f.root-servers.net.
.                       515049  IN      NS      g.root-servers.net.
.                       515049  IN      NS      h.root-servers.net.
.                       515049  IN      NS      i.root-servers.net.
.                       515049  IN      NS      l.root-servers.net.
.                       515049  IN      NS      m.root-servers.net.
;; Received 819 bytes from 100.100.2.136#53(100.100.2.136) in 1 ms

com.                    172800  IN      NS      e.gtld-servers.net.
com.                    172800  IN      NS      b.gtld-servers.net.
com.                    172800  IN      NS      j.gtld-servers.net.
com.                    172800  IN      NS      m.gtld-servers.net.
com.                    172800  IN      NS      i.gtld-servers.net.
com.                    172800  IN      NS      f.gtld-servers.net.
com.                    172800  IN      NS      a.gtld-servers.net.
com.                    172800  IN      NS      g.gtld-servers.net.
com.                    172800  IN      NS      h.gtld-servers.net.
com.                    172800  IN      NS      c.gtld-servers.net.
com.                    172800  IN      NS      d.gtld-servers.net.
com.                    172800  IN      NS      l.gtld-servers.net.
com.                    172800  IN      NS      k.gtld-servers.net.
;; Received 839 bytes from 198.41.0.4#53(a.root-servers.net) in 2 ms

example.com.            172800  IN      NS      a.iana-servers.net.
example.com.            172800  IN      NS      b.iana-servers.net.
;; Received 326 bytes from 192.26.92.30#53(c.gtld-servers.net) in 2 ms

example.com.            86400   IN      A       96.7.128.175
example.com.            86400   IN      A       96.7.128.198
example.com.            86400   IN      A       23.192.228.84
example.com.            86400   IN      A       23.215.0.136
example.com.            86400   IN      A       23.192.228.80
example.com.            86400   IN      A       23.215.0.138
;; Received 134 bytes from 199.43.135.53#53(a.iana-servers.net) in 143 ms

    5 . 擷取 DNS 出口 IP，通過查詢特殊網域名稱返回用戶端出口 IP（即本地 DNS 伺服器對外的公網 IP），確認 NAT 或代理後的真實請求源地址（影響 CDN 調度）。

    說明

    命令：dig +short TXT whoami.ds.akahelp.net

    $ dig +short TXT whoami.ds.akahelp.net
"ns"
"47.xxx.xxx.14"

    6 . 查詢網域名稱使用的網域名稱DNS伺服器。

    說明

    命令：dig ns 您的網域名稱（這裡輸入主網域名稱即可）

    $ dig ns example.com
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> ns example.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58283
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;example.com.                   IN      NS

;; ANSWER SECTION:
example.com.            10      IN      NS      a.iana-servers.net.
example.com.            10      IN      NS      b.iana-servers.net.

;; Query time: 5 msec
;; SERVER:
;; WHEN: Tue Feb 18 16:09:33 CST 2025
;; MSG SIZE  rcvd: 93

    7 . 可通過指定客戶機IP，查詢權威DNS返回的解析地址，來判斷智能解析調度的精準度。

    說明

    命令：dig @權威DNS伺服器 網域名稱 +subnet=指定客戶機IP（樣本：dig @ns1.alidns.com example.com +subnet=10.10.10.10）

    $ dig @ns1.alidns.com example.com +subnet=10.10.10.10
; <<>> DiG 9.11.36-RedHat-9.11.36-16.0.1.al8 <<>> @ns1.alidns.com example.com +subnet=10.10.10.10
; (9 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60880
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; CLIENT-SUBNET: 10.10.10.10/32/24

;; QUESTION SECTION:
;example.com.                   IN      A

;; AUTHORITY SECTION:
example.com.            600     IN      SOA     ns1.alidns.com. hostmaster.hichina.com. 2024120417 3600 1200 86400 600

;; Query time: 0 msec
;; SERVER:
;; WHEN: Tue Feb 18 16:19:41 CST 2025
;; MSG SIZE  rcvd: 124

    nslookup命令

    1 . 查看本地DNS解析結果。

    說明

    命令：nslookup <您的網域名稱>（樣本：nslookup example.com）

    $ nslookup example.com
Server:         xxx
Address:        xxx#53

Non-authoritative answer:
Name:   example.com
Address: 23.192.228.84
Name:   example.com
Address: 23.215.0.136
Name:   example.com
Address: 23.192.228.80
Name:   example.com
Address: 23.215.0.138
Name:   example.com
Address: 96.7.128.175
Name:   example.com
Address: 96.7.128.198
Name:   example.com
Address: 2600:1408:ec00:36::1736:7f31
Name:   example.com
Address: 2600:1408:ec00:36::1736:7f24
Name:   example.com
Address: 2600:1406:bc00:53::b81e:94ce
Name:   example.com
Address: 2600:1406:bc00:53::b81e:94c8
Name:   example.com
Address: 2600:1406:3a00:21::173e:2e66
Name:   example.com
Address: 2600:1406:3a00:21::173e:2e65

    2 . 指定公用DNS，查詢解析生效情況。

    說明

    命令：nslookup 您的網域名稱 公用DNS（以雲解析公用DNS伺服器為樣本：nslookup example.com 223.5.5.5）

    $ nslookup example.com 223.5.5.5
Server:         223.5.5.5
Address:        223.5.5.5#53

Non-authoritative answer:
Name:   example.com
Address: 23.192.228.84
Name:   example.com
Address: 23.215.0.138
Name:   example.com
Address: 23.215.0.136
Name:   example.com
Address: 23.192.228.80
Name:   example.com
Address: 96.7.128.175
Name:   example.com
Address: 96.7.128.198
Name:   example.com
Address: 2600:1406:3a00:21::173e:2e65
Name:   example.com
Address: 2600:1406:bc00:53::b81e:94ce
Name:   example.com
Address: 2600:1408:ec00:36::1736:7f24
Name:   example.com
Address: 2600:1406:3a00:21::173e:2e66
Name:   example.com
Address: 2600:1406:bc00:53::b81e:94c8
Name:   example.com
Address: 2600:1408:ec00:36::1736:7f31

    3 . 根據記錄類型進行查詢，比如MX，CNAME，NS，PTR等

    說明

    命令：nslookup -type=記錄類型 你的網域名稱（樣本：nslookup -type=NS example.com）

    $ nslookup -type=NS example.com
Server:         100.100.2.136
Address:        100.100.2.136#53

Non-authoritative answer:
example.com     nameserver = b.iana-servers.net.
example.com     nameserver = a.iana-servers.net.

Authoritative answers can be found from:

    4 . 查看網域名稱在指定權威伺服器上的解析結果。

    說明

    命令：nslookup 您的網域名稱 權威伺服器（樣本：nslookup example.com ns1.alidns.com）

    $ nslookup example.com ns1.alidns.com
Server:         ns1.alidns.com
Address:        120.76.107.55#53

*** Can't find example.com: No answer