Huza ikosa ry’ihuzagirama n’aderesi ya upstream. Ahantu ha IPv6 n’ikosa network-unreachable byerekana ko inzira ya IPv6 yaguye n’ubwo DNS yasubije igisubizo cyemewe. Ubutumwa “bwahagaritswe by’agateganyo” buza nyuma ntibushobora kwerekana DNS yonyine nk’impamvu.

Ku miterere ihari ikoresha resolver ya NGINX mu gihe cy’akazi, politiki ya IPv4 gusa ishobora gukoresha uburyo busobanurwa mu gitabo cy’Icyongereza.

Inyandiko zihuye