dnsping
通過給DNS服務器發送指定的數據包，像PING一樣返回結果
dnsping -c 10 -s 114.114.114.114 www.51cto.com
dnsping DNS: 114.114.114.114:53, hostname: www.51cto.com, rdatatype: A
70 bytes from 114.114.114.114: seq=0 time=26.055 ms
70 bytes from 114.114.114.114: seq=1 time=24.745 ms
70 bytes from 114.114.114.114: seq=2 time=24.468 ms
70 bytes from 114.114.114.114: seq=3 time=25.033 ms
70 bytes from 114.114.114.114: seq=4 time=24.615 ms
70 bytes from 114.114.114.114: seq=5 time=24.844 ms
70 bytes from 114.114.114.114: seq=6 time=27.036 ms
70 bytes from 114.114.114.114: seq=7 time=25.232 ms
70 bytes from 114.114.114.114: seq=8 time=25.613 ms
70 bytes from 114.114.114.114: seq=9 time=25.343 ms
--- 114.114.114.114 dnsping statistics ---
10 requests transmitted, 10 responses received, 0% lost
min=24.468 ms, avg=25.298 ms, max=27.036 ms, stddev=0.777 ms通過114公共DNS解析51cto官網，解析時間平均爲25ms
測試內部的DNS，因爲緩存的關係，會更快
dnsping -c 10 -s 192.168.x.x www.51cto.com
dnsping DNS: 192.168.x.x:53, hostname: www.51cto.com, rdatatype: A
71 bytes from 192.168.x.x: seq=0 time=84.492 ms
71 bytes from 192.168.x.x: seq=1 time=3.628 ms
71 bytes from 192.168.x.x: seq=2 time=3.340 ms
71 bytes from 192.168.x.x: seq=3 time=3.204 ms
71 bytes from 192.168.x.x: seq=4 time=3.350 ms
71 bytes from 192.168.x.x: seq=5 time=3.198 ms
71 bytes from 192.168.x.x: seq=6 time=3.164 ms
71 bytes from 192.168.x.x: seq=7 time=3.209 ms
71 bytes from 192.168.x.x: seq=8 time=3.059 ms
71 bytes from 192.168.x.x: seq=9 time=3.051 ms
--- 192.168.x.x dnsping statistics ---
10 requests transmitted, 10 responses received, 0% lost
min=3.051 ms, avg=11.369 ms, max=84.492 ms, stddev=25.693 ms地址要自豪的隱藏，不過可以看出除了第一次要去上聯取解析時間較久外，後面因爲緩存的關係解析速度是很快的。
dnstraceroute
像traceroute路由探測一樣，用來確定你的DNS請求經過的路徑到達目的地
這裏開啓--expert選項可以輸出專業提示，例如有可能DNS流暢劫持。很不幸看看我的結果，這次我用了阿里雲的公共DNS
dnstraceroute --expert -C -t A -s 223.5.5.5 www.51cto.com
dnstraceroute DNS: 223.5.5.5:53, hostname: www.51cto.com, rdatatype: A
9 61.51.113.81 (61.51.113.81) 3.487 ms
10 192.168.9.22 (192.168.9.22) 174.075 ms
11 61.49.143.214 (61.49.143.214) 5.115 ms
12 192.168.9.22 (192.168.9.22) 168.890 ms
13 140.205.26.210 (140.205.26.210) 42.070 ms
14 192.168.9.22 (192.168.9.22) 132.504 ms
15 192.168.9.22 (192.168.9.22) 131.364 ms
16 192.168.9.22 (192.168.9.22) 130.170 ms
17 192.168.9.22 (192.168.9.22) 129.046 ms
18 192.168.9.22 (192.168.9.22) 128.409 ms
19 192.168.9.22 (192.168.9.22) 127.440 ms
20 192.168.9.22 (192.168.9.22) 126.075 ms
21 192.168.9.22 (192.168.9.22) 124.876 ms
22 192.168.9.22 (192.168.9.22) 123.502 ms
23 192.168.9.22 (192.168.9.22) 122.405 ms
24 192.168.9.22 (192.168.9.22) 121.296 ms
25 192.168.9.22 (192.168.9.22) 120.340 ms
26 192.168.9.22 (192.168.9.22) 121.284 ms
27 192.168.9.22 (192.168.9.22) 120.235 ms
28 192.168.9.22 (192.168.9.22) 119.002 ms
29 192.168.9.22 (192.168.9.22) 117.941 ms
30 192.168.9.22 (192.168.9.22) 116.735 ms
=== Expert Hints ===
[*] public DNS server is next to a private IP address (possible hijacking)前面8跳我進行了隱藏，後面的，我就不多說了。
dnseval
用於同時比較多個DNS服務器的響應時間，非常實用
dnseval -t A -f /root/dnsdiag/public-servers.txt -c10 www.51cto.com
server avg(ms) min(ms) max(ms) stddev(ms) lost(%) ttl flags
-----------------------------------------------------------------------------------------
114.114.114.114 25.257 24.925 27.023 0.631 %0 38 QR -- -- RD RA -- --
223.5.5.5 42.854 40.213 56.995 5.080 %0 15 QR -- -- RD RA -- --
223.6.6.6 43.564 39.979 48.332 2.775 %0 15 QR -- -- RD RA -- --
123.123.123.124 11.678 6.330 26.417 6.254 %0 60 QR -- -- RD RA -- --
123.125.81.6 4.015 3.234 6.977 1.121 %0 223 QR -- -- RD RA -- --
180.76.76.76 10.505 5.159 39.302 10.410 %0 80 QR -- -- RD RA -- --感謝51CTO,我又拿它做測試了
最後附帶官方地址，下載、安裝請自行參考。
官方地址