ping 二级域名，加上http://的话，则是主域名的地址
➜ ~ ping http://hd.webonn.com PING http://hd.webonn.com (202.102.110.204): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 Request timeout for icmp_seq 4 Request timeout for icmp_seq 5 Request timeout for icmp_seq 6 Request timeout for icmp_seq 7 Request timeout for icmp_seq 8 Request timeout for icmp_seq 9 ^C <div–<- http://hd.webonn.com ping statistics — 11 packets transmitted, 0 packets received, 100.0% packet loss |
直接ping二级域名，不带http://，才是真实的，地址：
➜ ~ ping hd.webonn.com PING hd.webonn.com (115.29.173.126): 56 data bytes 64 bytes from 115.29.173.126: icmp_seq=0 ttl=54 time=14.580 ms 64 bytes from 115.29.173.126: icmp_seq=1 ttl=54 time=12.879 ms 64 bytes from 115.29.173.126: icmp_seq=2 ttl=54 time=13.734 ms 64 bytes from 115.29.173.126: icmp_seq=3 ttl=54 time=13.406 ms 64 bytes from 115.29.173.126: icmp_seq=4 ttl=54 time=24.214 ms 64 bytes from 115.29.173.126: icmp_seq=5 ttl=54 time=15.061 ms ^C <div–<- hd.webonn.com ping statistics — 6 packets transmitted, 6 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 12.879/15.646/24.214/3.899 ms ➜ ~ |
而再去ping主域名，则又是别的地址：
➜ ~ ping www.webonn.com PING webonn.com (112.124.12.74): 56 data bytes 64 bytes from 112.124.12.74: icmp_seq=0 ttl=54 time=20.276 ms 64 bytes from 112.124.12.74: icmp_seq=1 ttl=54 time=16.805 ms ^C <div–<- webonn.com ping statistics — 2 packets transmitted, 2 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 16.805/18.541/20.276/1.735 ms ➜ ~ |
对于hd.webonn.com的ping，是否加上http://，结果却还不一样，感觉很是奇怪。
ping with http://
ping – Difference between pinging with and without http:// – Super User
-》ping的参数应该是hostname或IP（而不是http开头的URL）
-》ping带http://开头的，理论上应该无法工作，ping不通才对
-〉和我想的一样
-》但是为何上面可以ping通？？？
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