{"id":17,"date":"2021-04-22T21:26:05","date_gmt":"2021-04-22T13:26:05","guid":{"rendered":"http:\/\/0004.xyz\/?p=17"},"modified":"2021-04-23T15:33:52","modified_gmt":"2021-04-23T07:33:52","slug":"%e4%bd%bf%e7%94%a8-dns-sd-%e8%bf%9b%e8%a1%8c-nat-to-nat-%e7%a9%bf%e9%80%8f","status":"publish","type":"post","link":"http:\/\/0004.xyz\/?p=17","title":{"rendered":"\u4f7f\u7528 DNS-SD \u8fdb\u884c NAT-to-NAT \u7a7f\u900f"},"content":{"rendered":"

[1]\u6587\u7ae0\u6765\u6e90\uff1a\u4f7f\u7528 DNS-SD \u8fdb\u884c NAT-to-NAT \u7a7f\u900f<\/a><\/p>\n

\u8bb0\u5f55\u4e00\u4e0bWireGuard VPN\u7684NAT\u7a7f\u900f\u4f7f\u7528\u65b9\u6848\u3002
\n\"1.png\"
\nWireGuard \u662f\u7531 Jason A. Donenfeld \u7b49\u4eba\u521b\u5efa\u7684\u4e0b\u4e00\u4ee3\u5f00\u6e90 VPN \u534f\u8bae\uff0c\u65e8\u5728\u89e3\u51b3\u8bb8\u591a\u56f0\u6270 IPSec\/IKEv2\u3001OpenVPN \u6216 L2TP \u7b49\u5176\u4ed6 VPN \u534f\u8bae\u7684\u95ee\u9898\u30022020 \u5e74 1 \u6708 29 \u65e5\uff0cWireGuard \u6b63\u5f0f\u5408\u5e76\u8fdb\u5165 Linux 5.6 \u5185\u6838\u4e3b\u7ebf\u3002
\n\"2.png\"
\n\u5229\u7528 WireGuard \u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u5f88\u591a\u975e\u5e38\u5947\u5999\u7684\u529f\u80fd\uff0c\u6bd4\u5982\u8de8\u516c\u6709\u4e91\u7ec4\u5efa Kubernetes \u96c6\u7fa4\uff0c\u672c\u5730\u76f4\u63a5\u8bbf\u95ee\u516c\u6709\u4e91 Kubernetes \u96c6\u7fa4\u4e2d\u7684 Pod IP \u548c Service IP\uff0c\u5728\u5bb6\u4e2d\u6ca1\u6709\u516c\u7f51 IP \u7684\u60c5\u51b5\u4e0b\u76f4\u8fde\u5bb6\u4e2d\u7684\u8bbe\u5907\uff0c\u7b49\u7b49\u3002<\/p>\n

\u5982\u679c\u4f60\u662f\u7b2c\u4e00\u6b21\u542c\u8bf4 WireGuard\uff0c\u5efa\u8bae\u4f60\u82b1\u70b9\u65f6\u95f4\u770b\u770b\u6211\u4e4b\u524d\u5199\u7684 WireGuard \u5de5\u4f5c\u539f\u7406\u3002\u7136\u540e\u53ef\u4ee5\u53c2\u8003\u4e0b\u9762\u4e24\u7bc7\u6587\u7ae0\u6765\u5feb\u901f\u4e0a\u624b\uff1a
\n1\u3001WireGuard \u5de5\u4f5c\u539f\u7406<\/a>
\n2\u3001WireGuard \u5feb\u901f\u5b89\u88c5\u6559\u7a0b<\/a>
\n3\u3001\u4f7f\u7528 wg-gen-web \u6765\u7ba1\u7406 WireGuard \u7684\u914d\u7f6e<\/a>
\n4\u3001WireGuard \u914d\u7f6e\u8be6\u89e3<\/a><\/p>\n

\u672c\u6587\u5c06\u63a2\u8ba8 WireGuard \u4f7f\u7528\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u4e00\u4e2a\u91cd\u5927\u96be\u9898\uff1a\u5982\u4f55\u4f7f\u4e24\u4e2a\u4f4d\u4e8e NAT \u540e\u9762\uff08\u4e14\u6ca1\u6709\u6307\u5b9a\u516c\u7f51\u51fa\u53e3\uff09\u7684\uff08\u5185\u7f51\uff09\u5ba2\u6237\u7aef\u4e4b\u95f4\u76f4\u63a5\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n

WireGuard \u4e0d\u533a\u5206\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\uff0c\u5927\u5bb6\u90fd\u662f\u5ba2\u6237\u7aef\uff0c\u4e0e\u81ea\u5df1\u8fde\u63a5\u7684\u6240\u6709\u5ba2\u6237\u7aef\u90fd\u88ab\u79f0\u4e4b\u4e3a Peer\uff08\u8282\u70b9\uff09\u3002<\/p>\n

<\/p>\n

1. IP \u4e0d\u56fa\u5b9a\u7684 Peer<\/h2>\n

WireGuard \u7684\u6838\u5fc3\u90e8\u5206\u662f\u52a0\u5bc6\u5bc6\u94a5\u8def\u7531\uff08Cryptokey Routing\uff09\uff0c\u5b83\u7684\u5de5\u4f5c\u539f\u7406\u662f\u5c06\u516c\u94a5\u548c IP \u5730\u5740\u5217\u8868\uff08AllowedIPs\uff09\u5173\u8054\u8d77\u6765\u3002\u6bcf\u4e00\u4e2a\u7f51\u7edc\u63a5\u53e3\u90fd\u6709\u4e00\u4e2a\u79c1\u94a5\u548c\u4e00\u4e2a Peer \u5217\u8868\uff0c\u6bcf\u4e00\u4e2a Peer \u90fd\u6709\u4e00\u4e2a\u516c\u94a5\u548c IP \u5730\u5740\u5217\u8868\u3002\u53d1\u9001\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u628a IP \u5730\u5740\u5217\u8868\u770b\u6210\u8def\u7531\u8868\uff1b\u63a5\u6536\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u628a IP \u5730\u5740\u5217\u8868\u770b\u6210\u8bbf\u95ee\u63a7\u5236\u5217\u8868\u3002
\n\u516c\u94a5\u548c IP \u5730\u5740\u5217\u8868\u7684\u5173\u8054\u7ec4\u6210\u4e86 Peer \u7684\u5fc5\u8981\u914d\u7f6e\uff0c\u4ece\u96a7\u9053\u9a8c\u8bc1\u7684\u89d2\u5ea6\u770b\uff0c\u6839\u672c\u4e0d\u9700\u8981 Peer \u5177\u5907\u9759\u6001 IP \u5730\u5740\u3002\u7406\u8bba\u4e0a\uff0c\u5982\u679c Peer \u7684 IP \u5730\u5740\u4e0d\u540c\u65f6\u53d1\u751f\u53d8\u5316\uff0cWireGuard \u662f\u53ef\u4ee5\u5b9e\u73b0 IP \u6f2b\u6e38\u7684\u3002
\n\u73b0\u5728\u56de\u5230\u6700\u521d\u7684\u95ee\u9898\uff1a\u5047\u8bbe\u4e24\u4e2a Peer \u90fd\u5728 NAT \u540e\u9762\uff0c\u4e14\u8fd9\u4e2a NAT \u4e0d\u53d7\u6211\u4eec\u63a7\u5236\uff0c\u65e0\u6cd5\u914d\u7f6e UDP \u7aef\u53e3\u8f6c\u53d1\uff0c\u5373\u65e0\u6cd5\u6307\u5b9a\u516c\u7f51\u51fa\u53e3\uff0c\u8981\u60f3\u5efa\u7acb\u8fde\u63a5\uff0c\u4e0d\u4ec5\u8981\u52a8\u6001\u53d1\u73b0 Peer \u7684 IP \u5730\u5740\uff0c\u8fd8\u8981\u53d1\u73b0 Peer \u7684\u7aef\u53e3\u3002
\n\u627e\u4e86\u4e00\u5708\u4e0b\u6765\uff0c\u73b0\u6709\u7684\u5de5\u5177\u6839\u672c\u65e0\u6cd5\u5b9e\u73b0\u8fd9\u4e2a\u9700\u6c42\uff0c\u672c\u6587\u5c06\u81f4\u529b\u4e8e\u4e0d\u5bf9 WireGuard \u6e90\u7801\u505a\u4efb\u4f55\u6539\u52a8\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u4e0a\u8ff0\u9700\u6c42\u3002<\/p>\n

2. \u4e2d\u5fc3\u8f90\u5c04\u578b\u7f51\u7edc\u62d3\u6251<\/h2>\n

\u4f60\u53ef\u80fd\u4f1a\u95ee\u6211\u4e3a\u4ec0\u4e48\u4e0d\u4f7f\u7528\u4e2d\u5fc3\u8f90\u5c04\u578b\uff08hub-and-spoke\uff09\u7f51\u7edc\u62d3\u6251\uff1f\u4e2d\u5fc3\u8f90\u5c04\u578b\u7f51\u7edc\u6709\u4e00\u4e2a VPN \u7f51\u5173\uff0c\u8fd9\u4e2a\u7f51\u5173\u901a\u5e38\u90fd\u6709\u4e00\u4e2a\u9759\u6001 IP \u5730\u5740\uff0c\u5176\u4ed6\u6240\u6709\u7684\u5ba2\u6237\u7aef\u90fd\u9700\u8981\u8fde\u63a5\u8fd9\u4e2a VPN \u7f51\u5173\uff0c\u518d\u7531\u7f51\u5173\u5c06\u6d41\u91cf\u8f6c\u53d1\u5230\u5176\u4ed6\u7684\u5ba2\u6237\u7aef\u3002\u5047\u8bbe Alice \u548c Bob \u90fd\u4f4d\u4e8e NAT \u540e\u9762\uff0c\u90a3\u4e48 Alice \u548c Bob \u90fd\u8981\u548c\u7f51\u5173\u5efa\u7acb\u96a7\u9053\uff0c\u7136\u540e Alice \u548c Bob \u4e4b\u95f4\u5c31\u53ef\u4ee5\u901a\u8fc7 VPN \u7f51\u5173\u8f6c\u53d1\u6d41\u91cf\u6765\u5b9e\u73b0\u76f8\u4e92\u901a\u4fe1\u3002
\n\"3.png\"
\n\u5176\u5b9e\u8fd9\u4e2a\u65b9\u6cd5\u662f\u5982\u4eca\u5927\u5bb6\u90fd\u5728\u7528\u7684\u65b9\u6cd5\uff0c\u5df2\u7ecf\u6ca1\u4ec0\u4e48\u53ef\u8bf4\u7684\u4e86\uff0c\u7f3a\u70b9\u76f8\u5f53\u660e\u663e\uff1a
\n\uff081\uff09\u5f53 Peer \u8d8a\u6765\u8d8a\u591a\u65f6\uff0cVPN \u7f51\u5173\u5c31\u4f1a\u53d8\u6210\u5782\u76f4\u6269\u5c55\u7684\u74f6\u9888\u3002
\n\uff082\uff09\u901a\u8fc7 VPN \u7f51\u5173\u8f6c\u53d1\u6d41\u91cf\u7684\u6210\u672c\u5f88\u9ad8\uff0c\u6bd5\u7adf\u4e91\u670d\u52a1\u5668\u7684\u6d41\u91cf\u5f88\u8d35\u3002
\n\uff083\uff09\u901a\u8fc7 VPN \u7f51\u5173\u8f6c\u53d1\u6d41\u91cf\u4f1a\u5e26\u6765\u5f88\u9ad8\u7684\u5ef6\u8fdf\u3002
\n\u672c\u6587\u60f3\u63a2\u8ba8\u7684\u662f Alice \u548c Bob \u4e4b\u95f4\u76f4\u63a5\u5efa\u7acb\u96a7\u9053\uff0c\u4e2d\u5fc3\u8f90\u5c04\u578b\uff08hub-and-spoke\uff09\u7f51\u7edc\u62d3\u6251\u662f\u65e0\u6cd5\u505a\u5230\u7684\u3002<\/p>\n

3. NAT \u7a7f\u900f<\/h2>\n

\u8981\u60f3\u5728 Alice \u548c Bob \u4e4b\u95f4\u76f4\u63a5\u5efa\u7acb\u4e00\u4e2a WireGuard \u96a7\u9053\uff0c\u5c31\u9700\u8981\u5b83\u4eec\u80fd\u591f\u7a7f\u8fc7\u6321\u5728\u5b83\u4eec\u9762\u524d\u7684 NAT\u3002\u7531\u4e8e WireGuard \u662f\u901a\u8fc7 UDP \u6765\u76f8\u4e92\u901a\u4fe1\u7684\uff0c\u6240\u4ee5\u7406\u8bba\u4e0a UDP \u6253\u6d1e\uff08UDP hole punching\uff09 \u662f\u6700\u4f73\u9009\u62e9\u3002
\nUDP \u6253\u6d1e\uff08UDP hole punching\uff09\u5229\u7528\u4e86\u8fd9\u6837\u4e00\u4e2a\u4e8b\u5b9e\uff1a\u5927\u591a\u6570 NAT \u5728\u5c06\u5165\u7ad9\u6570\u636e\u5305\u4e0e\u73b0\u6709\u7684\u8fde\u63a5\u8fdb\u884c\u5339\u914d\u65f6\u90fd\u5f88\u5bbd\u677e\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u91cd\u590d\u4f7f\u7528\u7aef\u53e3\u72b6\u6001\u6765\u6253\u6d1e\uff0c\u56e0\u4e3a NAT \u8def\u7531\u5668\u4e0d\u4f1a\u9650\u5236\u53ea\u63a5\u6536\u6765\u81ea\u539f\u59cb\u76ee\u7684\u5730\u5740\uff08\u4fe1\u4f7f\u670d\u52a1\u5668\uff09\u7684\u6d41\u91cf\uff0c\u5176\u4ed6\u5ba2\u6237\u7aef\u7684\u6d41\u91cf\u4e5f\u53ef\u4ee5\u63a5\u6536\u3002
\n\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5047\u8bbe Alice \u5411\u65b0\u4e3b\u673a Carol \u53d1\u9001\u4e00\u4e2a UDP \u6570\u636e\u5305\uff0c\u800c Bob \u6b64\u65f6\u901a\u8fc7\u67d0\u79cd\u65b9\u6cd5\u83b7\u53d6\u5230\u4e86 Alice \u7684 NAT \u5728\u5730\u5740\u8f6c\u6362\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u7684\u51fa\u7ad9\u6e90 IP:Port\uff0cBob \u5c31\u53ef\u4ee5\u5411\u8fd9\u4e2a IP:Port\uff082.2.2.2:7777\uff09 \u53d1\u9001 UDP \u6570\u636e\u5305\u6765\u548c Alice \u5efa\u7acb\u8054\u7cfb\u3002
\n\"4.png\"
\n\u5176\u5b9e\u4e0a\u9762\u8ba8\u8bba\u7684\u5c31\u662f\u5b8c\u5168\u5706\u9525\u578b NAT\uff08Full cone NAT\uff09\uff0c\u5373\u4e00\u5bf9\u4e00\uff08one-to-one\uff09NAT\u3002\u5b83\u5177\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a
\n\uff081\uff09\u4e00\u65e6\u5185\u90e8\u5730\u5740\uff08iAddr:iPort\uff09\u6620\u5c04\u5230\u5916\u90e8\u5730\u5740\uff08eAddr:ePort\uff09\uff0c\u6240\u6709\u53d1\u81ea iAddr:iPort \u7684\u6570\u636e\u5305\u90fd\u7ecf\u7531 eAddr:ePort \u5411\u5916\u53d1\u9001\u3002
\n\uff082\uff09\u4efb\u610f\u5916\u90e8\u4e3b\u673a\u90fd\u80fd\u7ecf\u7531\u53d1\u9001\u6570\u636e\u5305\u7ed9 eAddr:ePort \u5230\u8fbe iAddr:iPort\u3002
\n\u5927\u90e8\u5206\u7684 NAT \u90fd\u662f\u8fd9\u79cd NAT\uff0c\u5bf9\u4e8e\u5176\u4ed6\u5c11\u6570\u4e0d\u5e38\u89c1\u7684 NAT\uff0c\u8fd9\u79cd\u6253\u6d1e\u65b9\u6cd5\u6709\u4e00\u5b9a\u7684\u5c40\u9650\u6027\uff0c\u65e0\u6cd5\u987a\u5229\u4f7f\u7528\u3002<\/p>\n

4. STUN<\/h2>\n

\u56de\u5230\u4e0a\u9762\u7684\u4f8b\u5b50\uff0cUDP \u6253\u6d1e\u8fc7\u7a0b\u4e2d\u6709\u51e0\u4e2a\u95ee\u9898\u81f3\u5173\u91cd\u8981\uff1a
\n\uff081\uff09Alice \u5982\u4f55\u624d\u80fd\u77e5\u9053\u81ea\u5df1\u7684\u516c\u7f51 IP:Port\uff1f
\n\uff082\uff09Alice \u5982\u4f55\u4e0e Bob \u5efa\u7acb\u8fde\u63a5\uff1f
\n\uff083\uff09\u5728 WireGuard \u4e2d\u5982\u4f55\u5229\u7528 UDP \u6253\u6d1e\uff1f
\nRFC5389 \u5173\u4e8e STUN\uff08Session Traversal Utilities for NAT\uff0cNAT\u4f1a\u8bdd\u7a7f\u8d8a\u5e94\u7528\u7a0b\u5e8f\uff09\u7684\u8be6\u7ec6\u63cf\u8ff0\u4e2d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u534f\u8bae\u56de\u7b54\u4e86\u4e0a\u9762\u7684\u4e00\u90e8\u5206\u95ee\u9898\uff0c\u8fd9\u662f\u4e00\u7bc7\u5185\u5bb9\u5f88\u957f\u7684 RFC\uff0c\u6240\u4ee5\u6211\u5c06\u5c3d\u6211\u6240\u80fd\u5bf9\u5176\u8fdb\u884c\u603b\u7ed3\u3002\u5148\u63d0\u9192\u4e00\u4e0b\uff0cSTUN \u5e76\u4e0d\u80fd\u76f4\u63a5\u89e3\u51b3\u4e0a\u9762\u7684\u95ee\u9898\uff0c\u5b83\u53ea\u662f\u4e2a\u6273\u624b\uff0c\u4f60\u8fd8\u5f97\u62ff\u4ed6\u53bb\u6253\u9020\u4e00\u4e2a\u79f0\u624b\u7684\u5de5\u5177\uff1a
\nSTUN\uff08Session Traversal Utilities for NAT\uff0cNAT\u4f1a\u8bdd\u7a7f\u8d8a\u5e94\u7528\u7a0b\u5e8f\uff09\u662f\u4e00\u79cd\u7f51\u7edc\u534f\u8bae\uff0c\u5b83\u5141\u8bb8\u4f4d\u4e8eNAT\uff08\u6216\u591a\u91cdNAT\uff09\u540e\u7684\u5ba2\u6237\u7aef\u627e\u51fa\u81ea\u5df1\u7684\u516c\u7f51\u5730\u5740\uff0c\u67e5\u51fa\u81ea\u5df1\u4f4d\u4e8e\u54ea\u79cd\u7c7b\u578b\u7684 NAT \u4e4b\u540e\u4ee5\u53ca NAT \u4e3a\u67d0\u4e00\u4e2a\u672c\u5730\u7aef\u53e3\u6240\u7ed1\u5b9a\u7684\u516c\u7f51\u7aef\u53e3\u3002\u8fd9\u4e9b\u4fe1\u606f\u88ab\u7528\u6765\u5728\u4e24\u4e2a\u540c\u65f6\u5904\u4e8e NAT \u8def\u7531\u5668\u4e4b\u540e\u7684\u4e3b\u673a\u4e4b\u95f4\u5efa\u7acb UDP \u901a\u4fe1\u3002\u8be5\u534f\u8bae\u7531 RFC 5389 \u5b9a\u4e49\u3002
\n\"5.png\"
\nSTUN \u662f\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0d\u670d\u52a1\u7aef\u534f\u8bae\uff0c\u5728\u4e0a\u56fe\u7684\u4f8b\u5b50\u4e2d\uff0cAlice \u662f\u5ba2\u6237\u7aef\uff0cCarol \u662f\u670d\u52a1\u7aef\u3002Alice \u5411 Carol \u53d1\u9001\u4e00\u4e2a STUN Binding \u8bf7\u6c42\uff0c\u5f53 Binding \u8bf7\u6c42\u901a\u8fc7 Alice \u7684 NAT \u65f6\uff0c\u6e90 IP:Port \u4f1a\u88ab\u91cd\u5199\u3002\u5f53 Carol \u6536\u5230 Binding \u8bf7\u6c42\u540e\uff0c\u4f1a\u5c06\u4e09\u5c42\u548c\u56db\u5c42\u7684\u6e90 IP:Port \u590d\u5236\u5230 Binding \u54cd\u5e94\u7684\u6709\u6548\u8f7d\u8377\u4e2d\uff0c\u5e76\u5c06\u5176\u53d1\u9001\u7ed9 Alice\u3002Binding \u54cd\u5e94\u901a\u8fc7 Alice \u7684 NAT \u8f6c\u53d1\u5230\u5185\u7f51\u7684 Alice\uff0c\u6b64\u65f6\u7684\u76ee\u6807 IP:Port \u88ab\u91cd\u5199\u6210\u4e86\u5185\u7f51\u5730\u5740\uff0c\u4f46\u6709\u6548\u8f7d\u8377\u4fdd\u6301\u4e0d\u53d8\u3002Alice \u6536\u5230 Binding \u54cd\u5e94\u540e\uff0c\u5c31\u4f1a\u610f\u8bc6\u5230\u8fd9\u4e2a Socket \u7684\u516c\u7f51 IP:Port \u662f 2.2.2.2:7777\u3002
\n\u7136\u800c\uff0cSTUN \u5e76\u4e0d\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u53ea\u662f\u63d0\u4f9b\u4e86\u8fd9\u4e48\u4e00\u79cd\u673a\u5236\uff0c\u8ba9\u5e94\u7528\u7a0b\u5e8f\u83b7\u53d6\u5230\u5b83\u7684\u516c\u7f51 IP:Port\uff0c\u4f46 STUN \u5e76\u6ca1\u6709\u63d0\u4f9b\u5177\u4f53\u7684\u65b9\u6cd5\u6765\u5411\u76f8\u5173\u65b9\u5411\u53d1\u51fa\u4fe1\u53f7\u3002\u5982\u679c\u8981\u91cd\u5934\u7f16\u5199\u4e00\u4e2a\u5177\u6709 NAT \u7a7f\u900f\u529f\u80fd\u7684\u5e94\u7528\uff0c\u80af\u5b9a\u8981\u5229\u7528 STUN \u6765\u5b9e\u73b0\u3002\u5f53\u7136\uff0c\u660e\u667a\u7684\u505a\u6cd5\u662f\u4e0d\u4fee\u6539 WireGuard \u7684\u6e90\u7801\uff0c\u6700\u597d\u662f\u501f\u9274 STUN \u7684\u6982\u5ff5\u6765\u5b9e\u73b0\u3002\u603b\u4e4b\uff0c\u4e0d\u7ba1\u5982\u4f55\uff0c\u90fd\u9700\u8981\u4e00\u4e2a\u62e5\u6709\u9759\u6001\u516c\u7f51\u5730\u5740\u7684\u4e3b\u673a\u6765\u5145\u5f53\u4fe1\u4f7f\u670d\u52a1\u5668\uff08\u4e2d\u5fc3\u670d\u52a1\u5668\uff09\u3002<\/p>\n

5. NAT \u7a7f\u900f\u793a\u4f8b<\/h2>\n

\u65e9\u5728 2016 \u5e74 8 \u6708\u4efd\uff0cWireGuard \u7684\u521b\u5efa\u8005\u5c31\u5728 WireGuard \u90ae\u4ef6\u5217\u8868\u4e0a\u5206\u4eab\u4e86\u4e00\u4e2a NAT \u7a7f\u900f\u793a\u4f8b\u3002Jason \u7684\u793a\u4f8b\u5305\u542b\u4e86\u5ba2\u6237\u7aef\u5e94\u7528\u548c\u670d\u52a1\u7aef\u5e94\u7528\uff0c\u5176\u4e2d\u5ba2\u6237\u7aef\u5e94\u7528\u4e8e WireGuard \u4e00\u8d77\u8fd0\u884c\uff0c\u670d\u52a1\u7aef\u8fd0\u884c\u5728\u62e5\u6709\u9759\u6001\u5730\u5740\u7684\u4e3b\u673a\u4e0a\u7528\u6765\u53d1\u73b0\u5404\u4e2a Peer \u7684 IP:Port\uff0c\u5ba2\u6237\u7aef\u4f7f\u7528\u539f\u59cb\u5957\u63a5\u5b57\uff08raw socket\uff09\u4e0e\u670d\u52a1\u7aef\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

\/* We use raw sockets so that the WireGuard interface can actually own the real socket. *\/\nsock = socket(AF_INET, SOCK_RAW, IPPROTO_UDP);\nif (sock < 0) {\n    perror("socket");\n    return errno;\n}<\/code><\/pre>\n
\u6b63\u5982\u8bc4\u8bba\u4e2d\u6307\u51fa\u7684\uff0cWireGuard \u62e5\u6709\u201c\u771f\u6b63\u7684\u5957\u63a5\u5b57\u201d\u3002\u901a\u8fc7\u4f7f\u7528\u539f\u59cb\u5957\u63a5\u5b57\uff08raw socket\uff09\uff0c\u5ba2\u6237\u7aef\u80fd\u591f\u5411\u670d\u52a1\u7aef\u4f2a\u88c5\u672c\u5730 WireGuard \u7684\u6e90\u7aef\u53e3\uff0c\u8fd9\u6837\u5c31\u786e\u4fdd\u4e86\u5728\u670d\u52a1\u7aef\u8fd4\u56de\u54cd\u5e94\u7ecf\u8fc7 NAT \u65f6\u76ee\u6807 IP:Port \u4f1a\u88ab\u6620\u5c04\u5230 WireGuard \u5957\u63a5\u5b57\u4e0a\u3002<\/p>\n
\u5ba2\u6237\u7aef\u5728\u5176\u539f\u59cb\u5957\u63a5\u5b57\u4e0a\u4f7f\u7528\u4e00\u4e2a\u7ecf\u5178\u7684 BPF \u8fc7\u6ee4\u5668\u6765\u8fc7\u6ee4\u670d\u52a1\u7aef\u53d1\u5f80 WireGuard \u7aef\u53e3\u7684\u56de\u590d\u3002<\/p>\n
static void apply_bpf(int sock, uint16_t port, uint32_t ip)\n{\n    struct sock_filter filter[] = {\n        BPF_STMT(BPF_LD + BPF_W + BPF_ABS, 12 \/* src ip *\/),\n        BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ip, 0, 5),\n        BPF_STMT(BPF_LD + BPF_H + BPF_ABS, 20 \/* src port *\/),\n        BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, PORT, 0, 3),\n        BPF_STMT(BPF_LD + BPF_H + BPF_ABS, 22 \/* dst port *\/),\n        BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, port, 0, 1),\n        BPF_STMT(BPF_RET + BPF_K, -1),\n        BPF_STMT(BPF_RET + BPF_K, 0)\n    };\n    struct sock_fprog filter_prog = {\n        .len = sizeof(filter) \/ sizeof(filter[0]),\n        .filter = filter\n    };\n    if (setsockopt(sock, SOL_SOCKET, SO_ATTACH_FILTER, &filter_prog, sizeof(filter_prog)) < 0) {\n        perror("setsockopt(bpf)");\n        exit(errno);\n    }\n}<\/code><\/pre>\n
\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u7684\u901a\u4fe1\u6570\u636e\u90fd\u88ab\u5b9a\u4e49\u5728 packet \u548c reply \u8fd9\u4e24\u4e2a\u7ed3\u6784\u4f53\u4e2d\uff1a<\/p>\n
struct {\n    struct udphdr udp;\n    uint8_t my_pubkey[32];\n    uint8_t their_pubkey[32];\n} __attribute__((packed)) packet = {\n    .udp = {\n        .len = htons(sizeof(packet)),\n        .dest = htons(PORT)\n    }\n};\nstruct {\n    struct iphdr iphdr;\n    struct udphdr udp;\n    uint32_t ip;\n    uint16_t port;\n} __attribute__((packed)) reply;<\/code><\/pre>\n
\u5ba2\u6237\u7aef\u4f1a\u904d\u5386\u914d\u7f6e\u597d\u7684 WireGuard Peer\uff08wg show  peers\uff09\uff0c\u5e76\u4e3a\u6bcf\u4e00\u4e2a Peer \u53d1\u9001\u4e00\u4e2a\u6570\u636e\u5305\u7ed9\u670d\u52a1\u7aef\uff0c\u5176\u4e2d my_pubkey \u548c their_pubkey \u5b57\u6bb5\u4f1a\u88ab\u9002\u5f53\u586b\u5145\u3002\u5f53\u670d\u52a1\u7aef\u6536\u5230\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6570\u636e\u5305\u65f6\uff0c\u5b83\u4f1a\u5411\u4ee5\u516c\u94a5\u4e3a\u5bc6\u94a5\u7684 Peer \u5185\u5b58\u8868\u4e2d\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u4e2a pubkey=my_pubkey \u7684 entry\uff0c\u7136\u540e\u518d\u4ece\u8be5\u8868\u4e2d\u67e5\u627e pubkey=their_pubkey \u7684 entry\uff0c\u4e00\u4f46\u53d1\u73b0 entry \u5b58\u5728\uff0c\u5c31\u4f1a\u5c06\u5176\u4e2d\u7684 IP:Port \u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002\u5f53\u5ba2\u6237\u7aef\u6536\u5230\u56de\u590d\u65f6\uff0c\u4f1a\u5c06 IP \u548c\u7aef\u53e3\u4ece\u6570\u636e\u5305\u4e2d\u89e3\u5305\uff0c\u5e76\u914d\u7f6e Peer \u7684 endpoint \u5730\u5740\uff08wg set  peer  endpoint :\uff09\u3002<\/p>\n
entry \u7ed3\u6784\u4f53\u6e90\u7801\uff1a<\/p>\n
struct entry {\n    uint8_t pubkey[32];\n    uint32_t ip;\n    uint16_t port;\n};<\/code><\/pre>\n
entry \u7ed3\u6784\u4f53\u4e2d\u7684 ip \u548c port \u5b57\u6bb5\u662f\u4ece\u5ba2\u6237\u7aef\u6536\u5230\u7684\u6570\u636e\u5305\u4e2d\u63d0\u53d6\u7684 IP \u548c UDP \u5934\u90e8\uff0c\u6bcf\u6b21\u5ba2\u6237\u7aef\u8bf7\u6c42 Peer \u7684 IP \u548c\u7aef\u53e3\u4fe1\u606f\u65f6\uff0c\u90fd\u4f1a\u5728 Peer \u5217\u8868\u4e2d\u5237\u65b0\u81ea\u5df1\u7684 IP \u548c\u7aef\u53e3\u4fe1\u606f\u3002<\/p>\n
\u4e0a\u9762\u7684\u4f8b\u5b50\u5c55\u793a\u4e86 WireGuard \u5982\u4f55\u5b9e\u73b0 UDP \u6253\u6d1e\uff0c\u4f46\u8fd8\u662f\u592a\u590d\u6742\u4e86\uff0c\u56e0\u4e3a\u5e76\u4e0d\u662f\u6240\u6709\u7684 Peer \u7aef\u90fd\u80fd\u6253\u5f00\u539f\u59cb\u5957\u63a5\u5b57\uff08raw socket\uff09\uff0c\u4e5f\u5e76\u4e0d\u662f\u6240\u6709\u7684 Peer \u7aef\u90fd\u80fd\u5229\u7528 BPF \u8fc7\u6ee4\u5668\u3002\u800c\u4e14\u8fd9\u91cc\u8fd8\u7528\u5230\u4e86\u81ea\u5b9a\u4e49\u7684 wire protocol\uff0c\u4ee3\u7801\u5c42\u9762\u7684\u6570\u636e\uff08\u94fe\u8868\u3001\u961f\u5217\u3001\u4e8c\u53c9\u6811\uff09\u90fd\u662f\u7ed3\u6784\u5316\u7684\uff0c\u4f46\u7f51\u7edc\u5c42\u770b\u5230\u7684\u90fd\u662f\u4e8c\u8fdb\u5236\u6d41\uff0c\u6240\u8c13 wire protocol \u5c31\u662f\u628a\u7ed3\u6784\u5316\u7684\u6570\u636e\u5e8f\u5217\u5316\u4e3a\u4e8c\u8fdb\u5236\u6d41\u53d1\u9001\u51fa\u53bb\uff0c\u5e76\u4e14\u5bf9\u65b9\u4e5f\u80fd\u4ee5\u540c\u6837\u7684\u683c\u5f0f\u53cd\u5e8f\u5217\u5316\u51fa\u6765\u3002\u8fd9\u79cd\u65b9\u5f0f\u662f\u5f88\u96be\u8c03\u8bd5\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u53e6\u8f9f\u8e4a\u5f84\uff0c\u5229\u7528\u73b0\u6709\u7684\u6210\u719f\u5de5\u5177\u6765\u8fbe\u5230\u76ee\u7684\u3002<\/p>\n
6.WireGuard NAT \u7a7f\u900f\u7684\u6b63\u89e3<\/h2>\n
\u5176\u5b9e\u5b8c\u5168\u6ca1\u5fc5\u8981\u8fd9\u4e48\u9ebb\u70e6\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5229\u7528 WireGuard \u672c\u8eab\u7684\u7279\u6027\u6765\u5b9e\u73b0 UDP \u6253\u6d1e\uff0c\u76f4\u63a5\u770b\u56fe\uff1a
\n\"6.png\"
\n\u4f60\u53ef\u80fd\u4f1a\u8ba4\u4e3a\u8fd9\u662f\u4e2a\u4e2d\u5fc3\u8f90\u5c04\u578b\uff08hub-and-spoke\uff09\u7f51\u7edc\u62d3\u6251\uff0c\u4f46\u5b9e\u9645\u4e0a\u8fd8\u662f\u6709\u4e9b\u533a\u522b\u7684\uff0c\u8fd9\u91cc\u7684 Registry Peer \u4e0d\u4f1a\u5145\u5f53\u7f51\u5173\u7684\u89d2\u8272\uff0c\u56e0\u4e3a\u5b83\u6ca1\u6709\u76f8\u5e94\u7684\u8def\u7531\uff0c\u4e0d\u4f1a\u8f6c\u53d1\u6d41\u91cf\u3002Registry \u7684 WireGuard \u63a5\u53e3\u5730\u5740\u4e3a 10.0.0.254\/32\uff0cAlice \u548c Bob \u7684 AllowedIPs \u4e2d\u53ea\u5305\u542b\u4e86 10.0.0.254\/32\uff0c\u8868\u793a\u53ea\u63a5\u6536\u6765\u81ea Registry \u7684\u6d41\u91cf\uff0c\u6240\u4ee5 Alice \u548c Bob \u4e4b\u95f4\u65e0\u6cd5\u901a\u8fc7 Registry \u6765\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n
\u8fd9\u91cc\u6709\u4e00\u70b9\u81f3\u5173\u91cd\u8981\uff0cRegistry \u5206\u522b\u548c Alice \u4e0e Bob \u5efa\u7acb\u4e86\u4e24\u4e2a\u96a7\u9053\uff0c\u8fd9\u5c31\u4f1a\u5728 Alice \u548c Bob \u7684 NAT \u4e0a\u6253\u5f00\u4e00\u4e2a\u6d1e\uff0c\u6211\u4eec\u9700\u8981\u627e\u5230\u4e00\u79cd\u65b9\u6cd5\u6765\u4ece Registry Peer \u4e2d\u67e5\u8be2\u8fd9\u4e9b\u6d1e\u7684 IP:Port\uff0c\u81ea\u7136\u800c\u7136\u5c31\u60f3\u5230\u4e86 DNS \u534f\u8bae\u3002DNS \u7684\u4f18\u52bf\u5f88\u660e\u663e\uff0c\u5b83\u6bd4\u8f83\u7b80\u5355\u3001\u6210\u719f\uff0c\u8fd8\u8de8\u5e73\u53f0\u3002\u6709\u4e00\u79cd DNS \u8bb0\u5f55\u7c7b\u578b\u53eb SRV\u8bb0\u5f55\uff08Service Record\uff0c\u670d\u52a1\u5b9a\u4f4d\u8bb0\u5f55\uff09\uff0c\u5b83\u7528\u6765\u8bb0\u5f55\u670d\u52a1\u5668\u63d0\u4f9b\u7684\u670d\u52a1\uff0c\u5373\u8bc6\u522b\u670d\u52a1\u7684 IP \u548c\u7aef\u53e3\uff0cRFC6763 \u7528\u5177\u4f53\u7684\u7ed3\u6784\u548c\u67e5\u8be2\u6a21\u5f0f\u5bf9\u8fd9\u79cd\u8bb0\u5f55\u7c7b\u578b\u8fdb\u884c\u4e86\u6269\u5c55\uff0c\u7528\u4e8e\u53d1\u73b0\u7ed9\u5b9a\u57df\u4e0b\u7684\u670d\u52a1\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5229\u7528\u8fd9\u4e9b\u6269\u5c55\u8bed\u4e49\u3002<\/p>\n
7. CoreDNS<\/h2>\n
\u9009\u597d\u4e86\u670d\u52a1\u53d1\u73b0\u534f\u8bae\u540e\uff0c\u8fd8\u9700\u8981\u4e00\u79cd\u65b9\u6cd5\u6765\u5c06\u5176\u4e0e WireGuard \u5bf9\u63a5\u3002CoreDNS \u662f Golang \u7f16\u5199\u7684\u4e00\u4e2a\u63d2\u4ef6\u5f0f DNS \u670d\u52a1\u5668\uff0c\u662f\u76ee\u524d Kubernetes \u5185\u7f6e\u7684\u9ed8\u8ba4 DNS \u670d\u52a1\u5668\uff0c\u5e76\u4e14\u5df2\u4ece CNCF \u6bd5\u4e1a\u3002\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5199\u4e00\u4e2a CoreDNS \u63d2\u4ef6\uff0c\u7528\u6765\u63a5\u53d7 DNS-SD\uff08DNS-based Service Discovery\uff09\u67e5\u8be2\u5e76\u8fd4\u56de\u76f8\u5173 WireGuard Peer \u7684\u4fe1\u606f\uff0c\u5176\u4e2d\u516c\u94a5\u4f5c\u4e3a\u8bb0\u5f55\u540d\u79f0\uff0cfuckcloudnative.io \u4f5c\u4e3a\u57df\u3002\u5982\u679c\u4f60\u719f\u6089 bind \u98ce\u683c\u7684\u57df\u6587\u4ef6\uff0c\u53ef\u4ee5\u60f3\u8c61\u4e00\u4e2a\u7c7b\u4f3c\u8fd9\u6837\u7684\u57df\u6570\u636e\uff1a<\/p>\n
_wireguard._udp         IN PTR          alice._wireguard._udp.fuckcloudnative.io.\n_wireguard._udp         IN PTR          bob._wireguard._udp.fuckcloudnative.io.\nalice._wireguard._udp   IN SRV 0 1 7777 alice.fuckcloudnative.io.\nalice                   IN A            2.2.2.2\nbob._wireguard._udp     IN SRV 0 1 8888 bob.fuckcloudnative.io.\nbob                     IN A            3.3.3.3<\/code><\/pre>\n
\u516c\u94a5\u4f7f\u7528 Base64 \u8fd8\u662f Base32 \uff1f
\n\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u4e00\u76f4\u4f7f\u7528\u522b\u540d Alice \u548c Bob \u6765\u66ff\u4ee3\u5176\u5bf9\u5e94\u7684 WireGuard \u516c\u94a5\u3002WireGuard \u516c\u94a5\u662f Base64 \u7f16\u7801\u7684\uff0c\u957f\u5ea6\u4e3a 44 \u5b57\u8282\uff1a<\/p>\n
$ wg genkey | wg pubkey\nUlVJVmPSwuG4U9BwyVILFDNlM+Gk9nQ7444HimPPgQg=<\/code><\/pre>\n
\u4e0d\u5e78\u7684\u662f\uff0cDNS \u7684 SRV \u8bb0\u5f55\u7684\u670d\u52a1\u540d\u79f0\u662f\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684.
\nBase32 \u867d\u7136\u4ea7\u751f\u4e86\u4e00\u4e2a\u7a0d\u957f\u7684\u5b57\u7b26\u4e32\uff0856 \u5b57\u8282\uff09\uff0c\u4f46\u5b83\u7684\u8868\u73b0\u5f62\u5f0f\u5141\u8bb8\u6211\u4eec\u5728 DNS \u5185\u90e8\u8868\u793a WireGuard \u516c\u94a5.
\n\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 base64 \u548c base32 \u547d\u4ee4\u6765\u56de\u8f6c\u6362\u7f16\u7801\u683c\u5f0f\uff0c\u4f8b\u5982\uff1a<\/p>\n
$ wg genkey | wg pubkey > pub.txt\n$ cat pub.txt\nO9rAAiO5qTejOEtFbsQhCl745ovoM9coTGiprFTaHUE=\n$ cat pub.txt | base64 -D | base32\nHPNMAARDXGUTPIZYJNCW5RBBBJPPRZUL5AZ5OKCMNCU2YVG2DVAQ====\n$ cat pub.txt | base64 -D | base32 | base32 -d | base64\nO9rAAiO5qTejOEtFbsQhCl745ovoM9coTGiprFTaHUE=<\/code><\/pre>\n
\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 base32 \u8fd9\u79cd\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u516c\u94a5\u7f16\u7801\uff0c\u6765\u4f7f\u5176\u4e0e DNS \u517c\u5bb9\u3002
\n\u7f16\u8bd1\u63d2\u4ef6<\/strong>
\nCoreDNS \u63d0\u4f9b\u4e86\u7f16\u5199\u63d2\u4ef6\u7684\u6587\u6863<\/a>\uff0c\u63d2\u4ef6\u5fc5\u987b\u8981\u5b9e\u73b0 plugin.Handler \u63a5\u53e3\uff1a<\/p>\n
type Handler interface {\n    ServeDNS(context.Context, dns.ResponseWriter, *dns.Msg) (int, error)\n    Name() string\n}<\/code><\/pre>\n
\u4f5c\u8005\u5df2\u7ecf\u5199\u597d\u4e86\u63d2\u4ef6\uff0c\u901a\u8fc7 DNS-SD\uff08DNS-based Service Discovery\uff09\u8bed\u4e49\u6765\u63d0\u4f9b WireGuard \u7684 Peer \u4fe1\u606f\uff0c\u8be5\u63d2\u4ef6\u540d\u5c31\u53eb wgsd\u3002\u81ea\u5df1\u7f16\u5199\u7684\u63d2\u4ef6\u4e0d\u5c5e\u4e8e\u5b98\u65b9\u5185\u7f6e\u63d2\u4ef6\uff0c\u4ece CoreDNS \u5b98\u65b9\u4e0b\u8f7d\u9875\u4e0b\u8f7d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u5e76\u4e0d\u5305\u62ec\u8fd9\u4e24\u4e2a\u63d2\u4ef6\uff0c\u6240\u4ee5\u9700\u8981\u81ea\u5df1\u7f16\u8bd1 CoreDNS\u3002<\/p>\n
\u7f16\u8bd1 CoreDNS \u5e76\u4e0d\u590d\u6742\uff0c\u5728\u6ca1\u6709\u5916\u90e8\u63d2\u4ef6\u7684\u60c5\u51b5\u4e0b\u53ef\u4ee5\u8fd9\u4e48\u7f16\u8bd1\uff1a<\/p>\n
$ git clone https:\/\/github.com\/coredns\/coredns.git\n$ cd coredns\n$ make<\/code><\/pre>\n
\u5982\u679c\u8981\u52a0\u4e0a wgsd \u63d2\u4ef6\uff0c\u5219\u5728 make \u524d\uff0c\u8981\u4fee\u6539 plugin.cfg \u6587\u4ef6\uff0c\u52a0\u5165\u4ee5\u4e0b\u4e00\u884c\uff1a<\/p>\n
wgsd:github.com\/jwhited\/wgsd<\/code><\/pre>\n
\u7136\u540e\u5f00\u59cb\u7f16\u8bd1:<\/p>\n
$ go generate\n$ go build<\/code><\/pre>\n
\u67e5\u770b\u7f16\u8bd1\u597d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u662f\u5426\u5305\u542b\u8be5\u63d2\u4ef6\uff1a<\/p>\n
.\/coredns -plugins | grep wgsd\n  dns.wgsd<\/code><\/pre>\n
\u7f16\u8bd1\u5b8c\u6210\u540e\uff0c\u5c31\u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u542f\u7528 wgsd \u63d2\u4ef6\u4e86\uff1a<\/p>\n
.:53 {\n  wgsd <zone> <wg device>\n}<\/code><\/pre>\n
\u53ef\u4ee5\u6765\u6d4b\u8bd5\u4e00\u4e0b\uff0c\u914d\u7f6e\u6587\u4ef6\u5982\u4e0b\uff1a<\/p>\n
$ cat Corefile\n.:53 {\n  debug\n  wgsd fuckcloudnative.io. wg0\n}<\/code><\/pre>\n
\u8fd0\u884c CoreDNS\uff1a<\/p>\n
$ .\/coredns -conf Corefile\n.:53\nCoreDNS-1.8.1\nlinux\/amd64, go1.15,\n<\/code><\/pre>\n
\u5f53\u524d\u8282\u70b9\u7684 WireGuard \u4fe1\u606f\uff1a<\/p>\n
$ sudo wg show\ninterface: wg0\n  listening port: 52022\n\npeer: mvplwow3agnGM8G78+BiJ3tmlPf9gDtbJ2NdxqV44D8=\n  endpoint: 3.3.3.3:8888\n  allowed ips: 10.0.0.2\/32<\/code><\/pre>\n
\u4e0b\u9762\u5c31\u662f\u89c1\u8bc1\u5947\u8ff9\u7684\u65f6\u5019\uff0c\u5217\u51fa\u6240\u6709 Peer\uff1a<\/p>\n
$ dig @127.0.0.1 _wireguard._udp.fuckcloudnative.io. PTR +noall +answer +additional\n\n; <<>> DiG 9.10.6 <<>> @127.0.0.1 _wireguard._udp.fuckcloudnative.io. PTR +noall +answer +additional\n; (1 server found)\n;; global options: +cmd\n_wireguard._udp.fuckcloudnative.io. 0 IN  PTR     TL5GLQUMG5VATRRTYG57HYDCE55WNFHX7WADWWZHMNO4NJLY4A7Q====._wireguard._udp.fuckcloudnative.io.<\/code><\/pre>\n
\u67e5\u8be2\u6bcf\u4e2a Peer \u7684 IP \u548c\u7aef\u53e3\uff1a<\/p>\n
$ dig @127.0.0.1 TL5GLQUMG5VATRRTYG57HYDCE55WNFHX7WADWWZHMNO4NJLY4A7Q====._wireguard._udp.fuckcloudnative.io. SRV +noall +answer +additional\n\n;<<>> DiG 9.10.6 <<>> @127.0.0.1 TL5GLQUMG5VATRRTYG57HYDCE55WNFHX7WADWWZHMNO4NJLY4A7Q====._wireguard._udp.fuckcloudnative.io. SRV +noall +answer +additional\n; (1 server found)\n;; global options: +cmd\ntl5glqumg5vatrrtyg57hydce55wnfhx7wadwwzhmno4njly4a7q====._wireguard._udp.fuckcloudnative.io. 0 IN SRV 0 0 8888 TL5GLQUMG5VATRRTYG57HYDCE55WNFHX7WADWWZHMNO4NJLY4A7Q====.fuckcloudnative.io.\nTL5GLQUMG5VATRRTYG57HYDCE55WNFHX7WADWWZHMNO4NJLY4A7Q====.fuckcloudnative.io. 0 IN A 3.3.3.3<\/code><\/pre>\n
\u9a8c\u8bc1\u516c\u94a5\u662f\u5426\u5339\u914d\uff1a<\/p>\n
$ wg show wg0 peers\nmvplwow3agnGM8G78+BiJ3tmlPf9gDtbJ2NdxqV44D8=\n$ dig @127.0.0.1 _wireguard._udp.fuckcloudnative.io. PTR +short | cut -d. -f1 | base32 -d | base64\nmvplwow3agnGM8G78+BiJ3tmlPf9gDtbJ2NdxqV44D8=<\/code><\/pre>\n
8. \u6700\u7ec8\u901a\u4fe1\u6d41\u7a0b<\/h2>\n
\u6700\u7ec8\u5b9e\u73b0\u7684\u901a\u4fe1\u6d41\u7a0b\u5982\u4e0b\uff1a
\n\"7.png\"
\n\u4e00\u5f00\u59cb\uff0cAlice \u548c Bob \u5206\u522b\u4e0e Registry \u5efa\u7acb\u4e86\u96a7\u9053\uff1b\u63a5\u4e0b\u6765\uff0cAlice \u4e0a\u7684 wgsd-client \u5411 Registry \u8282\u70b9\u4e0a\u8fd0\u884c\u7684 CoreDNS\u63d2\u4ef6\uff08wgsd\uff09\u53d1\u8d77\u67e5\u8be2\u8bf7\u6c42\uff0c\u8be5\u63d2\u4ef6\u4ece WireGuard \u4fe1\u606f\u4e2d\u68c0\u7d22 Bob \u7684 endpoint \u4fe1\u606f\uff0c\u5e76\u5c06\u5176\u8fd4\u56de\u7ed9 wgsd-client\uff1b\u7136\u540e wgsd-client \u5f00\u59cb\u8bbe\u7f6e Bob \u7684 endpoint\uff1b\u6700\u540e Alice \u548c Bob \u4e4b\u95f4\u76f4\u63a5\u5efa\u7acb\u4e86\u4e00\u6761\u96a7\u9053\u3002<\/p>\n
\u4efb\u4f55\u63d0\u53ca \u201c\u5efa\u7acb\u96a7\u9053 \u201c\u7684\u5730\u65b9\u90fd\u53ea\u662f\u610f\u5473\u7740\u53d1\u751f\u4e86\u63e1\u624b\uff0c\u6570\u636e\u5305\u53ef\u4ee5\u5728 Peer \u4e4b\u95f4\u4f20\u8f93\u3002\u867d\u7136 WireGuard \u786e\u5b9e\u6709\u4e00\u4e2a\u63e1\u624b\u673a\u5236\uff0c\u4f46\u5b83\u6bd4\u4f60\u60f3\u8c61\u7684\u66f4\u50cf\u662f\u4e00\u4e2a\u65e0\u8fde\u63a5\u7684\u534f\u8bae\u3002<\/p>\n
\u73b0\u5728\u4e07\u4e8b\u4ff1\u5907\uff0c\u53ea\u6b20\u4e1c\u98ce\uff0c\u53ea\u9700\u8981\u5b9e\u73b0 wgsd-client \u5c31\u5b8c\u4e8b\u4e86\u3002
\n9. \u5b9e\u73b0 wgsd-client<\/strong>
\nwgsd-client \u8d1f\u8d23\u4f7f Peer \u7684 endpoint \u914d\u7f6e\u4fdd\u6301\u6700\u65b0\u72b6\u6001\uff0c\u5b83\u4f1a\u68c0\u7d22\u914d\u7f6e\u4e2d\u7684 Peer \u5217\u8868\uff0c\u67e5\u8be2 CoreDNS \u4e2d\u4e0e\u4e4b\u5339\u914d\u7684\u516c\u94a5\uff0c\u7136\u540e\u5728\u9700\u8981\u65f6\u4e3a\u76f8\u5e94\u7684 Peer \u66f4\u65b0 endpoint \u7684\u503c\u3002\u6700\u521d\u7684\u5b9e\u73b0\u65b9\u5f0f\u662f\u4ee5\u5b9a\u65f6\u4efb\u52a1\u6216\u8005\u7c7b\u4f3c\u7684\u8c03\u5ea6\u673a\u5236\u8fd0\u884c\uff0c\u4ee5\u5e8f\u5217\u5316\u7684\u65b9\u5f0f\u68c0\u67e5\u6240\u6709 Peer\uff0c\u8bbe\u7f6e endpoint\uff0c\u7136\u540e\u9000\u51fa\u3002\u76ee\u524d\u5b83\u8fd8\u4e0d\u662f\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0b\uff0c\u540e\u7eed\u4f1a\u7ee7\u7eed\u6539\u8fdb\u4f18\u5316\u3002<\/p>\n
wgsd-client \u7684\u6e90\u7801<\/a>\u4f4d\u4e8e wgsd \u4ed3\u5e93\u4e2d\u7684 cmd\/wgsd-client \u76ee\u5f55\u3002<\/p>\n
\u4e0b\u9762\u5f00\u59cb\u8fdb\u884c\u6700\u7ec8\u7684\u6d4b\u8bd5\u3002<\/p>\n
Alice \u548c Bob \u90fd\u5728 NAT \u540e\u9762\uff0cRegistry \u6ca1\u6709 NAT\uff0c\u4e14\u6709\u56fa\u5b9a\u7684\u516c\u7f51\u5730\u5740\u3002\u8fd9\u4e09\u4e2a Peer \u7684\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n\n\n\n
Peer<\/th>\nPublic Key<\/th>\nTunnel Address<\/th>\n<\/tr>\n<\/thead>\n
Alice<\/td>\nxScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=<\/td>\n10.0.0.1<\/td>\n<\/tr>\n
Bob<\/td>\nsyKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=<\/td>\n10.0.0.2<\/td>\n<\/tr>\n
Registry<\/td>\nJeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=<\/td>\n10.0.0.254<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u5b83\u4eec\u5404\u81ea\u7684\u521d\u59cb\u914d\u7f6e\uff1a<\/p>\n
Alice<\/p>\n
$ cat \/etc\/wireguard\/wg0.conf\n[Interface]\nAddress = 10.0.0.1\/32\nPrivateKey = 0CtieMOYKa2RduPbJss\/Um9BiQPSjgvHW+B7Mor5OnE=\nListenPort = 51820\n\n# Registry\n[Peer]\nPublicKey = JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\nEndpoint = 4.4.4.4:51820\nPersistentKeepalive = 5\nAllowedIPs = 10.0.0.254\/32\n\n# Bob\n[Peer]\nPublicKey = syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\nPersistentKeepalive = 5\nAllowedIPs = 10.0.0.2\/32\n\n$ wg show\ninterface: wg0\n  public key: xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\n  private key: (hidden)\n  listening port: 51820\n\npeer: JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\n  endpoint: 4.4.4.4:51820\n  allowed ips: 10.0.0.254\/32\n  latest handshake: 48 seconds ago\n  transfer: 1.67 KiB received, 11.99 KiB sent\n  persistent keepalive: every 5 seconds\n\npeer: syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\n  allowed ips: 10.0.0.2\/32\n  persistent keepalive: every 5 seconds<\/code><\/pre>\n
Bob<\/p>\n
$ cat \/etc\/wireguard\/wg0.conf\n[Interface]\nAddress = 10.0.0.2\/32\nPrivateKey = cIN5NqeWcbreXoaIhR\/4wgrrQJGym\/E7WrTttMtK8Gc=\nListenPort = 51820\n\n# Registry\n[Peer]\nPublicKey = JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\nEndpoint = 4.4.4.4:51820\nPersistentKeepalive = 5\nAllowedIPs = 10.0.0.254\/32\n\n# Alice\n[Peer]\nPublicKey = xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\nPersistentKeepalive = 5\nAllowedIPs = 10.0.0.1\/32\n\n$ wg show\ninterface: wg0\n  public key: syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\n  private key: (hidden)\n  listening port: 51820\n\npeer: JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\n  endpoint: 4.4.4.4:51820\n  allowed ips: 10.0.0.254\/32\n  latest handshake: 26 seconds ago\n  transfer: 1.54 KiB received, 11.75 KiB sent\n  persistent keepalive: every 5 seconds\n\npeer: xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\n  allowed ips: 10.0.0.1\/32\n  persistent keepalive: every 5 seconds<\/code><\/pre>\n
Registry<\/p>\n
$ cat \/etc\/wireguard\/wg0.conf\n[Interface]\nAddress = 10.0.0.254\/32\nPrivateKey = wLw2ja5AapryT+3SsBiyYVNVDYABJiWfPxLzyuiy5nE=\nListenPort = 51820\n\n# Alice\n[Peer]\nPublicKey = xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\nAllowedIPs = 10.0.0.1\/32\n\n# Bob\n[Peer]\nPublicKey = syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\nAllowedIPs = 10.0.0.2\/32\n\n$ wg show\ninterface: wg0\n  public key: JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\n  private key: (hidden)\n  listening port: 51820\n\npeer: xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\n  endpoint: 2.2.2.2:41424\n  allowed ips: 10.0.0.1\/32\n  latest handshake: 6 seconds ago\n  transfer: 510.29 KiB received, 52.11 KiB sent\n\npeer: syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\n  endpoint: 3.3.3.3:51820\n  allowed ips: 10.0.0.2\/32\n  latest handshake: 1 minute, 46 seconds ago\n  transfer: 498.04 KiB received, 50.59 KiB sent<\/code><\/pre>\n
Registry \u4e0e Alice \u548c Bob \u90fd\u5efa\u7acb\u4e86\u8fde\u63a5\uff0c\u53ef\u4ee5\u76f4\u63a5\u67e5\u8be2\u5b83\u4eec\u7684 endpoint \u4fe1\u606f\uff1a<\/p>\n
$ dig @4.4.4.4 -p 53 _wireguard._udp.fuckcloudnative.io. PTR +noall +answer +additional\n\n; <<>> DiG 9.10.6 <<>> @4.4.4.4 -p 53 _wireguard._udp.fuckcloudnative.io. PTR +noall +answer +additional\n; (1 server found)\n;; global options: +cmd\n_wireguard._udp.fuckcloudnative.io. 0 IN  PTR     YUTRLED535IGKL7BDLERL6M4VJXSXM3UQQPL4NMSN27MT56AD4HA====._wireguard._udp.fuckcloudnative.io.\n_wireguard._udp.fuckcloudnative.io. 0 IN  PTR     WMRID55V4ENHXQX2JSTYOYVKICJ5PIHKB2TR7R42SMIU3T5L4I5Q====._wireguard._udp.fuckcloudnative.io.\n\n$ dig @4.4.4.4 -p 53 YUTRLED535IGKL7BDLERL6M4VJXSXM3UQQPL4NMSN27MT56AD4HA====._wireguard._udp.fuckcloudnative.io. SRV +noall +answer +additional\n\n; <<>> DiG 9.10.6 <<>> @4.4.4.4 -p 53 YUTRLED535IGKL7BDLERL6M4VJXSXM3UQQPL4NMSN27MT56AD4HA====._wireguard._udp.fuckcloudnative.io. SRV +noall +answer +additional\n; (1 server found)\n;; global options: +cmd\nyutrled535igkl7bdlerl6m4vjxsxm3uqqpl4nmsn27mt56ad4ha====._wireguard._udp.fuckcloudnative.io. 0 IN SRV 0 0 41424 YUTRLED535IGKL7BDLERL6M4VJXSXM3UQQPL4NMSN27MT56AD4HA====.fuckcloudnative.io.\nYUTRLED535IGKL7BDLERL6M4VJXSXM3UQQPL4NMSN27MT56AD4HA====.fuckcloudnative.io. 0 IN A 2.2.2.2<\/code><\/pre>\n
\u5b8c\u7f8e\uff0c\u4e0b\u9762\u5206\u522b\u5728 Alice \u548c Bob \u4e0a\u542f\u52a8 wgsd-client \u8bd5\u8bd5\uff1a<\/p>\n
# Alice\n$ .\/wgsd-client -device=wg0 -dns=4.4.4.4:53 -zone=fuckcloudnative.io.\n2020\/05\/20 13:24:02 [JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=] no SRV records found\njwhited@Alice:~$ ping 10.0.0.2\nPING 10.0.0.2 (10.0.0.2): 56 data bytes\n64 bytes from 10.0.0.2: icmp_seq=0 ttl=64 time=173.260 ms\n^C\njwhited@Alice:~$ wg show\ninterface: wg0\n  public key: xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\n  private key: (hidden)\n  listening port: 51820\n\npeer: syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\n  endpoint: 3.3.3.3:51820\n  allowed ips: 10.0.0.2\/32\n  latest handshake: 2 seconds ago\n  transfer: 252 B received, 264 B sent\n  persistent keepalive: every 5 seconds\n\npeer: JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\n  endpoint: 4.4.4.4:51820\n  allowed ips: 10.0.0.254\/32\n  latest handshake: 1 minute, 19 seconds ago\n  transfer: 184 B received, 1.57 KiB sent\n  persistent keepalive: every 5 seconds\n\n# Bob\n$ .\/wgsd-client -device=wg0 -dns=4.4.4.4:53 -zone=fuckcloudnative.io.\n2020\/05\/20 13:24:04 [JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=] no SRV records found\njwhited@Bob:~$ wg show\ninterface: wg0\n  public key: syKB97XhGnvC+kynh2KqQJPXoOoOpx\/HmpMRTc+r4js=\n  private key: (hidden)\n  listening port: 51820\n\npeer: xScVkH3fUGUv4RrJFfmcqm8rs3SEHr41km6+yffAHw4=\n  endpoint: 2.2.2.2:41424\n  allowed ips: 10.0.0.1\/32\n  latest handshake: 22 seconds ago\n  transfer: 392 B received, 9.73 KiB sent\n  persistent keepalive: every 5 seconds\n\npeer: JeZlz14G8tg1Bqh6apteFCwVhNhpexJ19FDPfuxQtUY=\n  endpoint: 4.4.4.4:51820\n  allowed ips: 10.0.0.254\/32\n  latest handshake: 1 minute, 14 seconds ago\n  transfer: 2.08 KiB received, 17.59 KiB sent\n  persistent keepalive: every 5 seconds<\/code><\/pre>\n
wgsd-client \u6210\u529f\u53d1\u73b0\u4e86 Peer \u7684 endpoint \u5730\u5740\u5e76\u66f4\u65b0\u4e86 WireGuard \u7684\u914d\u7f6e\uff0c\u6700\u7ec8 Alice \u548c Bob \u4e4b\u95f4\u76f4\u63a5\u5efa\u7acb\u4e86\u4e00\u6761\u96a7\u9053\uff01<\/p>\n
\u603b\u7ed3<\/h2>\n
\"9.png\"
\n\u672c\u6587\u63a2\u8ba8\u4e86\u5982\u4f55\u5728\u53d7 NAT \u9650\u5236\u7684\u4e24\u4e2a Peer \u4e4b\u95f4\u76f4\u63a5\u5efa\u7acb\u4e00\u6761 WireGuard \u96a7\u9053\u3002\u672c\u6587\u63d0\u4f9b\u7684\u89e3\u51b3\u65b9\u6848\u90fd\u662f\u4f7f\u7528\u73b0\u6709\u7684\u534f\u8bae\u548c\u670d\u52a1\u53d1\u73b0\u6280\u672f\uff0c\u4ee5\u53ca\u81ea\u5df1\u5199\u4e86\u4e2a\u53ef\u63d2\u62d4\u7684\u63d2\u4ef6\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 dig \u6216 nslookup \u6765\u8fdb\u884c\u8c03\u8bd5\uff0c\u4e0d\u9700\u8981\u5e72\u6270\u6216\u4fee\u6539 WireGuard \u672c\u8eab\u3002<\/p>\n
\u5f53\u7136\uff0c\u8fd9\u4e2a CoreDNS \u63d2\u4ef6\u80af\u5b9a\u8fd8\u53ef\u4ee5\u4f18\u5316\uff0cwgsd-client \u4e5f\u9700\u8981\u7ee7\u7eed\u4f18\u5316\u3002\u6bd4\u5982\uff0cCoreDNS \u670d\u52a1\u5668\u662f\u5426\u5e94\u8be5\u9650\u5236\u53ea\u5728 Registry \u7684\u96a7\u9053\u4e2d\u53ef\u7528\uff1f\u662f\u5426\u5e94\u8be5\u5bf9\u57df\u8fdb\u884c\u7b7e\u540d\uff1f\u6bcf\u6b21\u67e5\u8be2 DNS \u65f6\u662f\u5426\u90fd\u9700\u8981\u67e5\u8be2\u4e00\u6b21 WireGuard \u7684 Peer \u4fe1\u606f\uff0c\u8fd8\u662f\u8bf4\u53ef\u4ee5\u7528\u7f13\u5b58\u6765\u89e3\u51b3\uff1f\u8fd9\u4e9b\u90fd\u662f\u503c\u5f97\u601d\u8003\u7684\u95ee\u9898\u3002<\/p>\n
wgsd \u63d2\u4ef6<\/a>\u7684\u4ee3\u7801\u662f\u5f00\u6e90\u7684\uff0c\u6b22\u8fce\u5927\u5bb6\u8e0a\u8dc3\u8d21\u732e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
[1]\u6587\u7ae0\u6765\u6e90\uff1a\u4f7f\u7528 DNS-SD \u8fdb\u884c NAT-to-NAT \u7a7f\u900f \u8bb0\u5f55\u4e00\u4e0bWireGuard VPN\u7684NA […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"kt_blocks_editor_width":"","footnotes":""},"categories":[7],"tags":[5,6,4],"class_list":["post-17","post","type-post","status-publish","format-standard","hentry","category-record","tag-coredns","tag-wgsd","tag-wireguard"],"_links":{"self":[{"href":"http:\/\/0004.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/0004.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/0004.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/0004.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/0004.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17"}],"version-history":[{"count":0,"href":"http:\/\/0004.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17\/revisions"}],"wp:attachment":[{"href":"http:\/\/0004.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/0004.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/0004.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}