#3 may 不像是墙干的,因为在s2服务器上是能ping通的:
[yucho@s2]:<~>$ ping up.woozooo.com
PING up.woozooo.com (116.62.97.50): 56 data bytes
64 bytes from 116.62.97.50: icmp_seq=0 ttl=82 time=262.528 ms
64 bytes from 116.62.97.50: icmp_seq=1 ttl=82 time=266.148 ms
64 bytes from 116.62.97.50: icmp_seq=2 ttl=82 time=262.392 ms
64 bytes from 116.62.97.50: icmp_seq=3 ttl=82 time=262.276 ms
64 bytes from 116.62.97.50: icmp_seq=4 ttl=82 time=264.810 ms
64 bytes from 116.62.97.50: icmp_seq=5 ttl=82 time=262.287 ms
64 bytes from 116.62.97.50: icmp_seq=6 ttl=82 time=262.228 ms
64 bytes from 116.62.97.50: icmp_seq=7 ttl=82 time=262.349 ms
64 bytes from 116.62.97.50: icmp_seq=8 ttl=82 time=262.265 ms
64 bytes from 116.62.97.50: icmp_seq=9 ttl=82 time=262.327 ms
^C
--- up.woozooo.com ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 262.228/262.961/266.148/1.297 ms
不可能对海外向国内的请求搞专门的IP黑名单吧。。。一刀切不是更好?