Dnsyo是一個命令行DNS檢測工具，能夠在多達1500個不同網絡的開放DNS服務器上進行查詢。在做了DNS變更的時候用來檢查DNS生效或排查DNS設置的時候是非常有用的。
項目地址：https://github.com/samarudge/dnsyo
Dnsyo安裝
Ubuntu, Debian or Linux Mint
$ sudo apt-get install python-pip
$ sudo pip install dnsyo --upgradeCentOS, Fedora or RHEL
$ sudo yum install python-pip
$ sudo pip install dnsyo --upgradeDnsyo使用
Dnsyo語法
$ dnsyo --help
usage: dnsyo [options] domain [type]
Query lots of DNS servers and colate the results
positional arguments:
domain Domain to query
type Record type (A, CNAME, MX, etc.)
optional arguments:
-h, --help show this help message and exit
--resolverlist RESOLVERLIST
Location of the yaml resolvers list to download
(http/https)
--resolverfile RESOLVERFILE
Location of the local yaml resolvers file
--verbose, -v Extended debug info
--simple, -s Simple output mode (good for UNIX parsing)
--extended, -x Extended output mode including server addresses
--threads THREADS, -t THREADS
Number of worker threads to use
--servers SERVERS, -q SERVERS
Maximum number of servers to query (or ALL)
--country COUNTRY, -c COUNTRY
Query servers by two letter country code
--update Check the list for working servers
--updateSummary UPDATESUMMARY
Location for the summary status of the update
--updateDestination UPDATEDESTINATION
Destination resolver list for updateDnsyo使用實例
用100個線程同時查詢所有DNS服務器上的結果。
$ dnsyo -t 100 -q ALL hi-linux.com
Status: Queried 1097 of 1097 servers, duration: 0:00:42.016678
- RESULTS
I asked 1097 servers for A records related to hi-linux.com,
324 responded with records and 773 gave errors
Here are the results;
22 servers responded with;
199.27.79.133
39 servers responded with;
103.245.222.133
24 servers responded with;
23.235.47.133
18 servers responded with;
23.235.40.133
69 servers responded with;
185.31.17.133
14 servers responded with;
23.235.46.133
14 servers responded with;
185.31.19.133
14 servers responded with;
199.27.76.133
39 servers responded with;
23.235.43.133
17 servers responded with;
23.235.44.133
26 servers responded with;
185.31.18.133
15 servers responded with;
23.91.98.188
11 servers responded with;
23.235.39.133
2 servers responded with;
141.211.28.87
And here are the errors;
42 servers responded with;
No Nameservers
22 servers responded with;
No Answer
709 servers responded with;
Server Timeout使用--simple選項採用簡單的輸出模式，對於UNIX腳本是非常有用的。
$ dnsyo --simple hi-linux.com
INFO QUERIED 500
INFO SUCCESS 222
INFO ERROR 278
RESULT 10 23.91.98.188
RESULT 30 103.245.222.133
RESULT 16 199.27.79.133
RESULT 11 23.235.47.133
RESULT 11 23.235.40.133
RESULT 16 23.235.44.133
RESULT 18 185.31.19.133
RESULT 24 23.235.43.133
RESULT 53 185.31.17.133
RESULT 13 185.31.18.133
RESULT 8 199.27.76.133
RESULT 4 23.235.46.133
RESULT 7 23.235.39.133
RESULT 1 141.211.28.87
ERROR 17 No Answer
ERROR 18 No Nameservers
ERROR 243 Server Timeout使用--extended選項查詢結果更加詳細，包含其查詢的服務器的名稱和地址。
$ dnsyo --extended hi-linux.com
Status: Queried 500 of 500 servers, duration: 0:00:16.818680
- RESULTS
I asked 500 servers for A records related to hi-linux.com,
221 responded with records and 279 gave errors
Here are the results;
The following servers
- 69.16.169.11 (HIGHWINDS - Highwinds Network Group, Inc. - US)
- 4.2.2.4 (LEVEL3 Level 3 Communications - US)
- 148.233.151.8 (Uninet S.A. de C.V. - MX)
- 216.52.97.33 (INTERNAP-2BLK - Internap Network Services Corporation - US)
- 204.97.212.10 (AS1239 SprintLink Global Network - US)
- 201.69.193.143 (TELEFNICA BRASIL S.A,BR - BR)
- 69.16.170.11 (HIGHWINDS - Highwinds Network Group, Inc. - US)
- 199.2.252.10 (AS1239 SprintLink Global Network - US)
- 216.165.129.158 (TDS-AS - TDS TELECOM - US)
- 216.170.153.146 (TDS-AS - TDS TELECOM - US)
- 186.224.32.6 (Portal Medianeira Informtica Ltda,BR - BR)
- 4.2.2.1 (LEVEL3 Level 3 Communications - US)
- 64.136.52.73 (AS-NETZERO - Netzero,INC. - US)
- 216.52.254.1 (INTERNAP-BLK - Internap Network Services Corporation - US)
responded with;
23.235.47.133
The following servers
- 103.238.195.226 (BEACHHEADGROUP-AS-AP Beachhead Group Pty. Ltd.,AU - AU)
- 203.50.2.71 (ASN-TELSTRA Telstra Pty Ltd - AU)
- 60.241.64.224 (TPG-INTERNET-AP TPG Telecom Limited,AU - AU)
- 74.82.42.42 (HURRICANE - Hurricane Electric, Inc. - US)
- 60.225.26.2 (ASN-TELSTRA Telstra Pty Ltd,AU - AU)
- 120.151.240.35 (ASN-TELSTRA Telstra Pty Ltd,AU - AU)
- 165.21.83.88 (ERX-SINGNET SingNet - SG)
- 203.144.207.29 (TRUEINTERNET-AS-AP TRUE INTERNET Co.,Ltd. - TH)
- 14.203.108.78 (TPG-INTERNET-AP TPG Telecom Limited,AU - AU)
- 164.124.107.9 (BORANET-KR, LG DACOM Corporation - KR)
- 203.219.45.219 (TPG-INTERNET-AP TPG Telecom Limited,AU - AU)
- 202.248.37.74 (INFOWEB FUJITSU LIMITED - JP)
- 222.151.241.10 (OCN NTT Communications Corporation - JP)
- 219.250.36.130 (broadNnet-KR, SK Broadband Co Ltd - KR)
- 156.154.70.22 (ULTRADNS - NeuStar, Inc. - US)
- 164.124.101.2 (BORANET-KR, LG DACOM Corporation - KR)
- 216.146.35.35 (DYNDNS - Dynamic Network Services, Inc. - US)
- 203.112.2.5 (MIINET UCOM Corporation - JP)
- 110.143.125.229 (ASN-TELSTRA Telstra Pty Ltd,AU - AU)
- 61.208.115.242 (OCN NTT Communications Corporation - JP)
- 198.153.194.40 (DYNDNS - Dynamic Network Services, Inc. - US)
- 203.112.2.4 (MIINET UCOM Corporation - JP)
- 74.82.46.6 (HURRICANE - Hurricane Electric, Inc. - US)
- 211.75.111.220 (HINET Data Communication Business Group,TW - TW)
- 202.248.20.133 (INFOWEB FUJITSU LIMITED - JP)
responded with;
103.245.222.133通過指定記錄類型查詢特定類型的DNS記錄，如查詢MX記錄。
$ dnsyo google.com MX
Status: Queried 500 of 500 servers, duration: 0:00:06.193986
- RESULTS
I asked 500 servers for MX records related to google.com,
14 responded with records and 486 gave errors
Here are the results;
14 servers responded with;
10 aspmx.l.google.com.
20 alt1.aspmx.l.google.com.
30 alt2.aspmx.l.google.com.
40 alt3.aspmx.l.google.com.
50 alt4.aspmx.l.google.com.
And here are the errors;
473 servers responded with;
No Answer
4 servers responded with;
No Nameservers
9 servers responded with;
Server Timeout