P4 G- b: E: C( H# D- FThis request could not be forwarded to the origin server or to any parent caches. : s8 J8 G& h9 j. i/ ^; o- G. {& h6 y) h; T" z" ^% x F
可能的问题包括:3 e6 C, ~0 J# o- J' x- d
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An Internet connection needed to access this domains origin servers may be down. 4 B0 L1 L J7 g$ T) eAll configured parent caches may be currently unreachable. 5 C { v7 g7 U# K$ o: GThe administrator may not allow this cache to make direct connections to origin servers. 1 E+ \) f8 w v: a/ V# j缓存服务器的管理员 [email protected].