3 Z4 I5 \4 U! _) x" a+ VThis request could not be forwarded to the origin server or to any parent caches.( O5 ~1 u; @2 D$ @: x
! F! @4 ~& g: N& R! ~/ ~- p9 o可能的问题包括: 0 y; y6 s5 b1 P5 L, v% r4 a" B( e* j. l, L7 c! n8 A
An Internet connection needed to access this domains origin servers may be down. ; a' a. F2 x6 S& `8 gAll configured parent caches may be currently unreachable. / ^5 v4 q7 u6 A0 [5 D6 IThe administrator may not allow this cache to make direct connections to origin servers. * E3 I: q" @. U/ c" o. B缓存服务器的管理员 [email protected].