{"id":12832,"date":"2024-11-15T12:53:36","date_gmt":"2024-11-15T04:53:36","guid":{"rendered":"https:\/\/fwq.ai\/blog\/12832\/"},"modified":"2024-11-15T12:53:36","modified_gmt":"2024-11-15T04:53:36","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8docker%e4%b8%ad%e9%85%8d%e7%bd%aenat%e4%b8%8e%e7%bd%91%e7%bb%9c%e5%9c%b0%e5%9d%80%e8%bd%ac%e6%8d%a2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/12832\/","title":{"rendered":"\u5982\u4f55\u5728Docker\u4e2d\u914d\u7f6eNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8docker%e4%b8%ad%e9%85%8d%e7%bd%aenat%e4%b8%8e%e7%bd%91%e7%bb%9c%e5%9c%b0%e5%9d%80%e8%bd%ac%e6%8d%a2%ef%bc%9f-bRVpJQytOu\">\u5982\u4f55\u5728Docker\u4e2d\u914d\u7f6eNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff1f<\/h1>\n<p>\u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u90e8\u7f72\u4e2d\uff0cDocker\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u5bb9\u5668\u5316\u6280\u672f\u3002Docker\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8d56\u9879\u6253\u5305\u5230\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5bb9\u5668\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u8de8\u5e73\u53f0\u7684\u517c\u5bb9\u6027\u548c\u53ef\u79fb\u690d\u6027\u3002\u5728Docker\u73af\u5883\u4e2d\uff0c\u7f51\u7edc\u914d\u7f6e\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u65b9\u9762\uff0c\u5c24\u5176\u662f\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff08NAT\uff09\u7684\u914d\u7f6e\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Docker\u4e2d\u914d\u7f6eNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\u3002<\/p>\n<h2 id=\"%e4%bb%80%e4%b9%88%e6%98%afnat%e4%b8%8e%e7%bd%91%e7%bb%9c%e5%9c%b0%e5%9d%80%e8%bd%ac%e6%8d%a2%ef%bc%9f-bRVpJQytOu\">\u4ec0\u4e48\u662fNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff1f<\/h2>\n<p>NAT\uff08Network Address Translation\uff09\u662f\u4e00\u79cd\u7f51\u7edc\u6280\u672f\uff0c\u7528\u4e8e\u5c06\u79c1\u6709IP\u5730\u5740\u8f6c\u6362\u4e3a\u516c\u5171IP\u5730\u5740\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u8282\u7701IP\u5730\u5740\u548c\u63d0\u9ad8\u7f51\u7edc\u5b89\u5168\u6027\u3002\u5728Docker\u4e2d\uff0cNAT\u5141\u8bb8\u5bb9\u5668\u901a\u8fc7\u4e3b\u673a\u7684\u516c\u5171IP\u5730\u5740\u4e0e\u5916\u90e8\u7f51\u7edc\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<h2 id=\"docker%e7%bd%91%e7%bb%9c%e6%a8%a1%e5%bc%8f-bRVpJQytOu\">Docker\u7f51\u7edc\u6a21\u5f0f<\/h2>\n<p>\u5728Docker\u4e2d\uff0c\u6709\u51e0\u79cd\u7f51\u7edc\u6a21\u5f0f\u53ef\u4f9b\u9009\u62e9\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>bridge<\/strong>\uff1a\u9ed8\u8ba4\u6a21\u5f0f\uff0cDocker\u4f1a\u521b\u5efa\u4e00\u4e2a\u865a\u62df\u7f51\u6865\uff0c\u5bb9\u5668\u901a\u8fc7\u8be5\u7f51\u6865\u4e0e\u5916\u90e8\u7f51\u7edc\u901a\u4fe1\u3002<\/li>\n<li><strong>host<\/strong>\uff1a\u5bb9\u5668\u76f4\u63a5\u4f7f\u7528\u4e3b\u673a\u7684\u7f51\u7edc\u6808\uff0c\u4e0d\u8fdb\u884cNAT\u3002<\/li>\n<li><strong>none<\/strong>\uff1a\u5bb9\u5668\u6ca1\u6709\u7f51\u7edc\u8fde\u63a5\u3002<\/li>\n<li><strong>overlay<\/strong>\uff1a\u7528\u4e8e\u591a\u4e3b\u673aDocker\u96c6\u7fa4\u7684\u7f51\u7edc\u3002<\/li>\n<\/ul>\n<p>\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528bridge\u6a21\u5f0f\u662f\u6700\u5e38\u89c1\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u9694\u79bb\u6027\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<h2 id=\"%e9%85%8d%e7%bd%aedocker-nat-bRVpJQytOu\">\u914d\u7f6eDocker NAT<\/h2>\n<p>\u8981\u5728Docker\u4e2d\u914d\u7f6eNAT\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3Docker\u7684\u7f51\u7edc\u8bbe\u7f6e\u3002\u4ee5\u4e0b\u662f\u914d\u7f6eNAT\u7684\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n<h3 id=\"1-%e5%88%9b%e5%bb%ba%e8%87%aa%e5%ae%9a%e4%b9%89%e7%bd%91%e7%bb%9c-bRVpJQytOu\">1. \u521b\u5efa\u81ea\u5b9a\u4e49\u7f51\u7edc<\/h3>\n<pre><code>docker network create --driver bridge my_bridge_network<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3amy_bridge_network\u7684\u81ea\u5b9a\u4e49\u6865\u63a5\u7f51\u7edc\u3002<\/p>\n<h3 id=\"2-%e5%90%af%e5%8a%a8%e5%ae%b9%e5%99%a8%e5%b9%b6%e8%bf%9e%e6%8e%a5%e5%88%b0%e8%87%aa%e5%ae%9a%e4%b9%89%e7%bd%91%e7%bb%9c-bRVpJQytOu\">2. \u542f\u52a8\u5bb9\u5668\u5e76\u8fde\u63a5\u5230\u81ea\u5b9a\u4e49\u7f51\u7edc<\/h3>\n<pre><code>docker run -d --name my_container --network my_bridge_network nginx<\/code><\/pre>\n<p>\u6b64\u547d\u4ee4\u542f\u52a8\u4e00\u4e2a\u540d\u4e3amy_container\u7684Nginx\u5bb9\u5668\uff0c\u5e76\u5c06\u5176\u8fde\u63a5\u5230my_bridge_network\u7f51\u7edc\u3002<\/p>\n<h3 id=\"3-%e9%85%8d%e7%bd%aenat%e8%a7%84%e5%88%99-bRVpJQytOu\">3. \u914d\u7f6eNAT\u89c4\u5219<\/h3>\n<p>Docker\u4f1a\u81ea\u52a8\u4e3a\u5bb9\u5668\u914d\u7f6eNAT\u89c4\u5219\uff0c\u4f46\u5982\u679c\u9700\u8981\u81ea\u5b9a\u4e49\u89c4\u5219\uff0c\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528iptables\u6dfb\u52a0NAT\u89c4\u5219\uff1a<\/p>\n<pre><code>iptables -t nat -A POSTROUTING -s 172.18.0.0\/16 -o eth0 -j MASQUERADE<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c172.18.0.0\/16\u662fDocker\u6865\u63a5\u7f51\u7edc\u7684IP\u8303\u56f4\uff0ceth0\u662f\u4e3b\u673a\u7684\u7f51\u7edc\u63a5\u53e3\u3002\u6b64\u89c4\u5219\u5141\u8bb8\u6765\u81ea\u8be5IP\u8303\u56f4\u7684\u6d41\u91cf\u901a\u8fc7\u4e3b\u673a\u7684\u516c\u5171IP\u5730\u5740\u8fdb\u884c\u8def\u7531\u3002<\/p>\n<h2 id=\"%e9%aa%8c%e8%af%81nat%e9%85%8d%e7%bd%ae-bRVpJQytOu\">\u9a8c\u8bc1NAT\u914d\u7f6e<\/h2>\n<p>\u8981\u9a8c\u8bc1NAT\u914d\u7f6e\u662f\u5426\u6210\u529f\uff0c\u53ef\u4ee5\u5728\u5bb9\u5668\u5185\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u68c0\u67e5\u5916\u90e8\u7f51\u7edc\u7684\u8fde\u901a\u6027\uff1a<\/p>\n<pre><code>docker exec -it my_container ping www.google.com<\/code><\/pre>\n<p>\u5982\u679c\u80fd\u591f\u6210\u529fping\u901a\u5916\u90e8\u5730\u5740\uff0c\u5219\u8bf4\u660eNAT\u914d\u7f6e\u6210\u529f\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-bRVpJQytOu\">\u603b\u7ed3<\/h2>\n<p>\u5728Docker\u4e2d\u914d\u7f6eNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\u662f\u5b9e\u73b0\u5bb9\u5668\u4e0e\u5916\u90e8\u7f51\u7edc\u901a\u4fe1\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u901a\u8fc7\u521b\u5efa\u81ea\u5b9a\u4e49\u7f51\u7edc\u3001\u542f\u52a8\u5bb9\u5668\u5e76\u914d\u7f6eiptables\u89c4\u5219\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5bb9\u5668\u7684\u7f51\u7edc\u6d41\u91cf\u3002\u5bf9\u4e8e\u9700\u8981\u9ad8\u6548\u3001\u7075\u6d3b\u7684\u7f51\u7edc\u914d\u7f6e\u7684\u7528\u6237\uff0c\u9009\u62e9\u5408\u9002\u7684\u670d\u52a1\u5668\u548c\u7f51\u7edc\u65b9\u6848\u81f3\u5173\u91cd\u8981\u3002\u7c73\u4e91\u63d0\u4f9b\u591a\u79cd\u7c7b\u578b\u7684<a href=\"https:\/\/fwq.ai\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u5305\u62ec\u7f8e\u56fdVPS\u548c\u533f\u540d\u670d\u52a1\u5668\uff0c\u5e2e\u52a9\u7528\u6237\u5b9e\u73b0\u66f4\u597d\u7684\u7f51\u7edc\u7ba1\u7406\u548c\u6570\u636e\u4fdd\u62a4\u3002\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u8bbf\u95ee\u6211\u4eec\u7684<a href=\"https:\/\/fwq.ai\">\u7f51\u7ad9<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728Docker\u4e2d\u914d\u7f6eNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff1f \u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u90e8\u7f72\u4e2d\uff0cDocker\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u6d41\u884c\u7684\u5bb9\u5668\u5316\u6280\u672f\u3002Docker\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u4f9d\u8d56\u9879\u6253\u5305\u5230\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5bb9\u5668\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u8de8\u5e73\u53f0\u7684\u517c\u5bb9\u6027\u548c\u53ef\u79fb\u690d\u6027\u3002\u5728Docker\u73af\u5883\u4e2d\uff0c\u7f51\u7edc\u914d\u7f6e\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u65b9\u9762\uff0c\u5c24\u5176\u662f\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff08NAT\uff09\u7684\u914d\u7f6e\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728Docker\u4e2d\u914d\u7f6eNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\u3002 \u4ec0\u4e48\u662fNAT\u4e0e\u7f51\u7edc\u5730\u5740\u8f6c\u6362\uff1f NAT\uff08Network Address Translation\uff09\u662f\u4e00\u79cd\u7f51\u7edc\u6280\u672f\uff0c\u7528\u4e8e\u5c06\u79c1\u6709IP\u5730\u5740\u8f6c\u6362\u4e3a\u516c\u5171IP\u5730\u5740\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u8282\u7701IP\u5730\u5740\u548c\u63d0\u9ad8\u7f51\u7edc\u5b89\u5168\u6027\u3002\u5728Docker\u4e2d\uff0cNAT\u5141\u8bb8\u5bb9\u5668\u901a\u8fc7\u4e3b\u673a\u7684\u516c\u5171IP\u5730\u5740\u4e0e\u5916\u90e8\u7f51\u7edc\u8fdb\u884c\u901a\u4fe1\u3002 Docker\u7f51\u7edc\u6a21\u5f0f \u5728Docker\u4e2d\uff0c\u6709\u51e0\u79cd\u7f51\u7edc\u6a21\u5f0f\u53ef\u4f9b\u9009\u62e9\uff0c\u5305\u62ec\uff1a bridge\uff1a\u9ed8\u8ba4\u6a21\u5f0f\uff0cDocker\u4f1a\u521b\u5efa\u4e00\u4e2a\u865a\u62df\u7f51\u6865\uff0c\u5bb9\u5668\u901a\u8fc7\u8be5\u7f51\u6865\u4e0e\u5916\u90e8\u7f51\u7edc\u901a\u4fe1\u3002 host\uff1a\u5bb9\u5668\u76f4\u63a5\u4f7f\u7528\u4e3b\u673a\u7684\u7f51\u7edc\u6808\uff0c\u4e0d\u8fdb\u884cNAT\u3002 none\uff1a\u5bb9\u5668\u6ca1\u6709\u7f51\u7edc\u8fde\u63a5\u3002 overlay\uff1a\u7528\u4e8e\u591a\u4e3b\u673aDocker\u96c6\u7fa4\u7684\u7f51\u7edc\u3002 \u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528bridge\u6a21\u5f0f\u662f\u6700\u5e38\u89c1\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u9694\u79bb\u6027\u548c\u7075\u6d3b\u6027\u3002 \u914d\u7f6eDocker NAT \u8981\u5728Docker\u4e2d\u914d\u7f6eNAT\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3Docker\u7684\u7f51\u7edc\u8bbe\u7f6e\u3002\u4ee5\u4e0b\u662f\u914d\u7f6eNAT\u7684\u57fa\u672c\u6b65\u9aa4\uff1a 1. \u521b\u5efa\u81ea\u5b9a\u4e49\u7f51\u7edc docker network create &#8211;driver bridge my_bridge_network \u4e0a\u8ff0\u547d\u4ee4\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3amy_bridge_network\u7684\u81ea\u5b9a\u4e49\u6865\u63a5\u7f51\u7edc\u3002 2. \u542f\u52a8\u5bb9\u5668\u5e76\u8fde\u63a5\u5230\u81ea\u5b9a\u4e49\u7f51\u7edc docker run -d &#8211;name my_container &#8211;network my_bridge_network nginx \u6b64\u547d\u4ee4\u542f\u52a8\u4e00\u4e2a\u540d\u4e3amy_container\u7684Nginx\u5bb9\u5668\uff0c\u5e76\u5c06\u5176\u8fde\u63a5\u5230my_bridge_network\u7f51\u7edc\u3002 3. \u914d\u7f6eNAT\u89c4\u5219 Docker\u4f1a\u81ea\u52a8\u4e3a\u5bb9\u5668\u914d\u7f6eNAT\u89c4\u5219\uff0c\u4f46\u5982\u679c\u9700\u8981\u81ea\u5b9a\u4e49\u89c4\u5219\uff0c\u53ef\u4ee5\u4f7f\u7528iptables\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528iptables\u6dfb\u52a0NAT\u89c4\u5219\uff1a iptables -t nat -A POSTROUTING -s 172.18.0.0\/16 -o eth0 -j MASQUERADE \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c172.18.0.0\/16\u662fDocker\u6865\u63a5\u7f51\u7edc\u7684IP\u8303\u56f4\uff0ceth0\u662f\u4e3b\u673a\u7684\u7f51\u7edc\u63a5\u53e3\u3002\u6b64\u89c4\u5219\u5141\u8bb8\u6765\u81ea\u8be5IP\u8303\u56f4\u7684\u6d41\u91cf\u901a\u8fc7\u4e3b\u673a\u7684\u516c\u5171IP\u5730\u5740\u8fdb\u884c\u8def\u7531\u3002 \u9a8c\u8bc1NAT\u914d\u7f6e \u8981\u9a8c\u8bc1NAT\u914d\u7f6e\u662f\u5426\u6210\u529f\uff0c\u53ef\u4ee5\u5728\u5bb9\u5668\u5185\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u68c0\u67e5\u5916\u90e8\u7f51\u7edc\u7684\u8fde\u901a\u6027\uff1a docker exec 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