3 u( C% G+ {5 c0 X3 |0 zThis request could not be forwarded to the origin server or to any parent caches.8 T6 W, i; \0 ^
4 h) R4 n+ d; Y% j可能的问题包括: 8 ?, j5 W. V5 j( h, A; m4 g0 \- e. d. Z/ d( c E
An Internet connection needed to access this domains origin servers may be down.4 h5 W0 q* u. Y- @8 ?( [3 f
All configured parent caches may be currently unreachable. ! Z, R; m j7 b2 c- v4 RThe administrator may not allow this cache to make direct connections to origin servers. $ Y! ^ S# p" g缓存服务器的管理员 [email protected].