NGINX Resolver 配置详解：域名解析利器

NGINX resolver \u662f\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790\u57df\u540d\u7684\u914d\u7f6e\u6307\u4ee4\u3002\u5f53 NGINX \u4f5c\u4e3a\u53cd\u5411\u4ee3\u7406\u670d\u52a1\u5668\u65f6\uff0c\u5b83\u9700\u8981\u89e3\u6790\u4e0a\u6d41\u670d\u52a1\u5668\u7684\u57df\u540d\u4ee5\u786e\u5b9a\u5b83\u7684 IP \u5730\u5740\u3002\n\nNGINX resolver \u6307\u4ee4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a\n\nresolver \u3010IP\u5730\u5740\u3011 \u3010valid\u3dtime\u3011 \u3010ipv6\u3d\u662fon\u76f8\u4e0d\u662foff\u3011 \u3010recursive\u3d\u662fon\u76f8\u4e0d\u662foff\u3011\uff1b\n\n- IP\u5730\u5740\uff1a\u6307\u5b9a\u7528\u4e8e\u57df\u540d\u89e3\u6790\u7684 DNS \u670d\u52a1\u5668\u7684 IP \u5730\u5740\u3002\u53ef\u4ee5\u6307\u5b9a\u591a\u4e2a IP \u5730\u5740\uff0c\u7528\u7a7a\u683c\u5206\u9694\u3002\u5982\u4e0d\u6307\u5b9a IP \u5730\u5740\uff0cNGINX \u5c06\u4f7f\u7528\u7cfb\u7edf\u9ed8\u8ba4\u7684 DNS \u670d\u52a1\u5668\u3002\n- valid\u3dtime\uff1a\u6307\u5b9a DNS \u670d\u52a1\u5668\u7684\u5907\u7528\u65f6\u95f4\uff0c\u4ee5\u79d2\u4e3a\u5355\u4f4d\u3002\u5728\u6b64\u65f6\u95f4\u5185\uff0cNGINX \u5c06\u7f13\u5b58 DNS \u670d\u52a1\u5668\u7684\u5907\u7528\u548c\u91cd\u7528\u5b83\u4eec\uff0c\u800c\u4e0d\u662f\u91cd\u65b0\u53d1\u8d77\u57df\u540d\u89e3\u6790\u8bf7\u6c42\u3002\u9ed8\u8ba4\u503c\u4e3a 30 \u79d2\u3002\n- ipv6\u3d\u662fon\u76f8\u4e0d\u662foff\uff1a\u6307\u5b9a\u662f\u5426\u542f\u7528 IPv6 \u89e3\u6790\u3002\u9ed8\u8ba4\u503c\u4e3a off\u3002\n- recursive\u3d\u662fon\u76f8\u4e0d\u662foff\uff1a\u6307\u5b9a\u662f\u5426\u542f\u7528\u9000\u5f52\u7c7b\u89e3\u6790\u3002\u9ed8\u8ba4\u503c\u4e3a on\u3002\n\nNGINX resolver \u6307\u4ee4\u53ef\u4ee5\u5728 http\u3001server\u548c location \u5757\u4e2d\u4f7f\u7528\u3002\u5f53\u5728 http \u5757\u4e2d\u914d\u7f6e\u65f6\uff0c\u5b83\u5c06\u5e94\u7528\u4e8e\u6240\u6709 server \u5757\u548c location \u5757\u3002\u5f53\u5728 server \u5757\u4e2d\u914d\u7f6e\u65f6\uff0c\u5b83\u5c06\u5e94\u7528\u4e8e\u8be5 server \u5757\u4e0b\u7684\u6240\u6709 location \u5757\u3002\u5f53\u5728 location \u5757\u4e2d\u914d\u7f6e\u65f6\uff0c\u5b83\u5c06\u53ea\u5e94\u7528\u4e8e\u8be5 location \u5757\u3002\n\n\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u914d\u7f6e\uff1a\n\nhttp \u3010\n resolver 8.8.8.8 8.8.4.4\uff1b\n \n server \u3010\n location / \u3010\n resolver_timeout 5s\uff1b\n proxy_pass http\uff1a//backend\uff1b\n \u3011\n \u3011\n\u3011\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cresolver \u6307\u4ee4\u6307\u5b9a\u4e86\u7528\u4e8e\u57df\u540d\u89e3\u6790\u7684 DNS \u670d\u52a1\u5668\u7684 IP \u5730\u5740\u3002resolver_timeout \u6307\u4ee4\u6307\u5b9a\u4e86\u89e3\u6790\u8d85\u65f6\u65f6\u95f4\u4e3a 5 \u79d2\u3002proxy_pass \u6307\u4ee4\u7528\u4e8e\u5c06\u8bf7\u6c42\u8f6c\u53d1\u5230\u540d\u4e3a backend \u7684\u4e0a\u6d41\u670d\u52a1\u5668\u3002\n\n\u901a\u8fc7\u914d\u7f6e NGINX resolver\uff0c\u53ef\u4ee5\u786e\u4fdd NGINX \u80fd\u591f\u6b63\u786e\u89e3\u6790\u4e0a\u6d41\u670d\u52a1\u5668\u7684\u57df\u540d\uff0c\u5e76\u5c06\u8bf7\u6c42\u8f6c\u53d1\u5230\u6b63\u786e\u7684 IP \u5730\u5740\u3002\u5916\u52a0\uff0c\u901a\u8fc7\u8bbe\u5b9a\u6709\u6548\u65f6\u95f4\u548c\u7f13\u5b58 DNS \u670d\u52a1\u5668\u7684\u5907\u7528\uff0c\u53ef\u4ee5\u63d0\u9ad8\u89e3\u6790\u6027\u80fd\u548c\u51cf\u5c11\u5bf9 DNS \u670d\u52a1\u5668\u7684\u8bf7\u6c42\u6b21\u6570\u3002