{"id":256,"date":"2022-09-09T18:28:25","date_gmt":"2022-09-09T10:28:25","guid":{"rendered":"https:\/\/qaqaq.top\/?p=256"},"modified":"2022-11-29T23:09:22","modified_gmt":"2022-11-29T15:09:22","slug":"vpn-%e5%8e%9f%e7%90%86%e4%bb%a5%e5%8f%8a%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=256","title":{"rendered":"VPN \u539f\u7406\u4ee5\u53ca\u5b9e\u73b0"},"content":{"rendered":"\n

0x00 \u524d\u8a00<\/h3>\n\n\n\n

\u7531\u4e8e VPN \u5728\u4e0d\u540c\u7cfb\u7edf\u4e0b\u7684\u5b9e\u73b0\u65b9\u5f0f\u4e0d\u540c\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u5b66\u4e60\u548c\u7406\u89e3\uff0c\u8fd9\u91cc\u6211\u4eec\u9009\u62e9 Linux<\/code> \u73af\u5883\uff0c\u6211\u672c\u5730\u6d4b\u8bd5\u73af\u5883\u4f7f\u7528\u7684\u662f Ubuntu 18.04 x64<\/code>\u3002<\/p>\n\n\n\n

\u672c\u6587\u4ece TUN\/TAP \u51fa\u53d1\uff0c\u9010\u6b65\u7406\u89e3 VPN \u4e2d\u7684\u6280\u672f\u7ec6\u8282\uff1b\u5e76\u7ed3\u5408 simpletun<\/a> \u6e90\u7801\uff0c\u8fdb\u884c VPN \u7684\u539f\u7406\u9a8c\u8bc1\u3002<\/p>\n\n\n\n

0x01 VPN\u662f\u4ec0\u4e48<\/h3>\n\n\n\n

VPN \u5168\u79f0\u4e3a\u865a\u62df\u79c1\u4eba\u7f51\u7edc(Virtual Private Network)\uff0c\u5e38\u7528\u4e8e\u8fde\u63a5\u4e2d\u3001\u5927\u578b\u4f01\u4e1a\u6216\u56e2\u4f53\u95f4\u79c1\u4eba\u7f51\u7edc\u7684\u901a\u8baf\u65b9\u6cd5\uff0c\u5229\u7528\u96a7\u9053\u534f\u8bae\uff08Tunneling Protocol\uff09\u6765\u8fbe\u5230\u53d1\u9001\u7aef\u8ba4\u8bc1\u3001\u6d88\u606f\u4fdd\u5bc6\u4e0e\u51c6\u786e\u6027\u7b49\u529f\u80fd\u3002<\/p>\n\n\n\n

\u6bd4\u5982\u591a\u5730\u529e\u516c\u7684\u516c\u53f8\uff0c\u53ef\u4ee5\u4f7f\u7528 VPN \u5c06\u4e0d\u540c\u5730\u533a\u8fde\u63a5\u5728\u540c\u4e00\u5185\u7f51\u4e0b\uff1b\u6216\u8005\u5728\u5bb6\u529e\u516c\u7684\u65f6\u5019\u4e5f\u53ef\u4ee5\u901a\u8fc7 VPN \u63a5\u5165\u516c\u53f8\u5185\u7f51\u4e2d\u3002<\/p>\n\n\n\n

VPN \u4ee5 CS \u67b6\u6784\u8fd0\u884c\uff0c\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

1.VPN\u5de5\u4f5c\u6d41\u7a0b<\/p>\n\n\n\n

\u5728\u5916\u7f51\u7684\u7528\u6237\u53ef\u4ee5\u4f7f\u7528 vpn client<\/code> \u8fde\u63a5\u7ec4\u7ec7\u642d\u5efa\u7684 vpn server<\/code> \u4ee5\u5efa\u7acb\u901a\u4fe1\u96a7\u9053\uff0c\u968f\u540e\u4fbf\u5efa\u7acb\u4e86\u865a\u62df\u7684\u79c1\u4eba\u7f51\u7edc\uff0c\u5904\u4e8e\u5916\u7f51\u7684 worker<\/code> \u548c\u5185\u7f51\u4e2d\u7684 server<\/code> \u53ef\u4ee5\u76f8\u4e92\u901a\u4fe1\u3002<\/p>\n\n\n\n

\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u7406\u89e3 VPN\uff0c\u7531 VPN client<\/code> \u6355\u83b7\u7528\u6237\u53d1\u51fa\u7684\u62a5\u6587\uff0c\u5c01\u88c5\u62a5\u6587\u540e\u901a\u8fc7\u7269\u7406\u7f51\u7edc\u901a\u4fe1\u94fe\u8def\u5c06\u62a5\u6587\u53d1\u7ed9 VPN server<\/code>\uff0cVPN server<\/code> \u63a5\u6536\u5230\u62a5\u6587\u540e\u8fdb\u884c\u89e3\u5305\uff0c\u518d\u5c06\u5176\u8f6c\u53d1\u7ed9\u5b9e\u9645\u7684\u76ee\u6807\uff0c\u53cd\u4e4b\u540c\u7406\uff1b VPN \u5728\u903b\u8f91\u5c42\u9762\u6784\u5efa\u4e86\u865a\u62df\u7f51\u7edc\u3002<\/p>\n\n\n\n

0x02 TUN\/TAP<\/h3>\n\n\n\n

\u90a3\u4e48\u5728\u4ee3\u7801\u5c42\u9762 VPN \u662f\u5982\u4f55\u5b9e\u73b0\u7684\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u5148\u6765\u770b\u770b TUN\/TAP\u3002<\/p>\n\n\n\n

TUN\/TAP \u662f\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e2d\u7684\u865a\u62df\u7f51\u7edc\u8bbe\u5907\uff0c\u7531\u8f6f\u4ef6\u8fdb\u884c\u5b9e\u73b0\uff0c\u5411\u64cd\u4f5c\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e0e\u786c\u4ef6\u7f51\u7edc\u8bbe\u5907\u5b8c\u5168\u76f8\u540c\u7684\u529f\u80fd\u3002\u5176\u4e2d TAP \u662f\u4ee5\u592a\u7f51\u8bbe\u5907(\u4e8c\u5c42\u8bbe\u5907)\uff0c\u64cd\u4f5c\u548c\u5c01\u88c5\u4ee5\u592a\u7f51\u6570\u636e\u5e27\uff0cTUN \u5219\u662f\u7f51\u7edc\u5c42\u8bbe\u5907(\u4e09\u5c42\u8bbe\u5907)\uff0c\u64cd\u4f5c\u548c\u5c01\u88c5\u7f51\u7edc\u5c42\u6570\u636e\u5e27\u3002<\/p>\n\n\n\n

\u5f53\u5e94\u7528\u7a0b\u5e8f\u53d1\u51fa\u62a5\u6587\u540e\uff0c\u62a5\u6587\u5c06\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u534f\u8bae\u6808\u5904\u7406\uff0c\u5230\u8fbe\u7f51\u7edc\u8bbe\u5907\uff0c\u786c\u4ef6\u7f51\u7edc\u8bbe\u5907\u5c06\u6536\u5230\u7684\u62a5\u6587\u8f6c\u5316\u4e3a\u7535\u4fe1\u53f7\u53d1\u51fa\uff0c\u800c\u865a\u62df\u7f51\u7edc\u8bbe\u5907(TUN\/TAP)\u4e0d\u5177\u5907\u5b9e\u9645\u7684\u7269\u7406\u529f\u80fd\uff0c\u62a5\u6587\u9700\u8981\u4e0a\u5c42\u5e94\u7528\u8fdb\u884c\u5904\u7406\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

2.\u786c\u4ef6\/\u865a\u62df\u7f51\u7edc\u8bbe\u5907<\/p>\n\n\n\n

\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u547d\u4ee4\u521b\u5efa TUN\/TAP \u8bbe\u5907\uff0c\u5e76\u8fdb\u884c\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n

# ip tuntap \u521b\u5efa\u540d\u4e3a tun0 \u7684 tun \u8bbe\u5907\nsudo ip tuntap add dev tun0 mod tun\n# \u4e3a tun0 \u914d\u7f6e ip\nsudo ifconfig tun0 192.168.0.10 netmask 255.255.255.0\n# \u67e5\u770b tun0 \u7f51\u5361\nifconfig tun0<\/code><\/pre>\n\n\n\n
\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
3.\u901a\u8fc7\u547d\u4ee4\u521b\u5efaTUN\u8bbe\u5907<\/p>\n\n\n\n
\u5728 VPN \u4e2d\u6211\u4eec\u53ef\u4ee5\u501f\u52a9 TUN\/TAP \u6765\u6355\u83b7\u7528\u6237\u53d1\u51fa\u7684\u62a5\u6587\u3002<\/p>\n\n\n\n
0x03 \u865a\u62df\u901a\u4fe1\u94fe\u8def<\/h3>\n\n\n\n
\u6309\u7167 TUN\/TAP \u7684\u5de5\u4f5c\u7279\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u7a0b\u5e8f\u76f4\u63a5\u8bfb\u5199\u865a\u62df\u7f51\u5361(\u4e5f\u5c31\u662f\u7269\u7406\u7f51\u5361\u5b9e\u9645\u6536\u53d1\u62a5\u6587\u7684\u8fc7\u7a0b)\uff0c\u6765\u5b9e\u73b0\u6355\u83b7\u7528\u6237\u6570\u636e\u4ee5\u53ca\u4f20\u9012\u7528\u6237\u6570\u636e\u3002(TUN \u548c TAP \u6709\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\uff0c\u4e0b\u6587\u6211\u4eec\u5c06\u4ee5\u66f4\u7b80\u5355\u7684 TUN \u4f5c\u4e3a\u4f8b\u5b50)<\/p>\n\n\n\n
\u968f\u540e\uff0c\u4f4d\u4e8e\u4e0d\u540c\u4e3b\u673a\u4e0a\u7684\u7a0b\u5e8f\u901a\u8fc7 socket \u8fdb\u884c\u901a\u4fe1\uff0c\u5c06\u4ece\u865a\u62df\u7f51\u5361\u7684\u63a5\u6536\u7684\u6570\u636e\u901a\u8fc7 socket \u53d1\u9001\u7ed9\u5bf9\u7aef\uff0c\u8fd9\u5c31\u662f\u4e00\u4e2a VPN \u7684\u96cf\u5f62\u4e86\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
4.\u865a\u62df\u901a\u4fe1\u94fe\u8def\u5de5\u4f5c\u6d41\u7a0b<\/p>\n\n\n\n
simpletun<\/code> \u662f\u8fd9\u79cd\u65b9\u6848\u7684\u6700\u5c0f\u5b9e\u73b0(\u6e90\u7801\u4ec5 300+ \u884c\uff0c\u611f\u5174\u8da3\u7684\u5c0f\u4f19\u4f34\u53ef\u4ee5\u81ea\u884c\u5b66\u4e60)\uff0c\u5728\u6e90\u7801\u4e2d\u5b9e\u73b0\u4e86\u521b\u5efa\u865a\u62df\u7f51\u7edc\u8bbe\u5907\u4ee5\u53ca socket \u901a\u4fe1\uff0c\u501f\u52a9 simpletun<\/code> \u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u8fdb\u884c\u9a8c\u8bc1\u3002<\/p>\n\n\n\n
\u9700\u8981\u6ce8\u610f\u4e00\u70b9\uff0csimpletun<\/code> \u542f\u52a8\u540e\u9700\u8981\u6211\u4eec\u624b\u52a8\u914d\u7f6e\u865a\u62df\u7f51\u5361\u7684 ip \u5730\u5740\uff0c\u5f53 ip \u5730\u5740\u672a\u914d\u7f6e\u65f6\uff0c\u4e24\u7aef\u76f8\u4e92\u53d1\u9001\u6570\u636e(\u90e8\u5206\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u53d1\u9001)\u4f1a\u9020\u6210\u7a0b\u5e8f\u5f02\u5e38\u9000\u51fa\uff0c\u6240\u4ee5\u5728\u4ee3\u7801\u4e2d\u6dfb\u52a0\u4e00\u4e2a sleep(30)<\/code> \u4fbf\u4e8e\u6211\u4eec\u914d\u7f6e ip \u5730\u5740\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
5.\u5728simpletun\u4e2d\u6dfb\u52a0sleep<\/p>\n\n\n\n
\u5728\u4e24\u53f0 Ubuntu<\/code> \u6d4b\u8bd5\u73af\u5883\u4e0b\u914d\u7f6e\u5e76\u8fdb\u884c\u9a8c\u8bc1\uff1a<\/p>\n\n\n\n
# A\u4e3b\u673a\n# \u7f16\u8bd1 simpletun\ngcc simpletun.c -Wall -o vpn\n# \u4f5c\u4e3a vpn server \u542f\u52a8\uff0c\u5e76\u5f00\u542f debug\uff0c\u9ed8\u8ba4\u76d1\u542c 55555\nsudo .\/vpn -i tun0 -s -d\n# \u914d\u7f6e tun \u7f51\u5361\u5730\u5740\nsudo ifconfig tun0 192.168.0.10 netmask 255.255.255.0\n\n# B\u4e3b\u673a\n# \u7f16\u8bd1 simpletun\ngcc simpletun.c -Wall -o vpn\n# \u4f5c\u4e3a vpn client \u542f\u52a8\uff0c\u8fde\u63a5 server\uff0c\u5e76\u5f00\u542f debug\nsudo .\/vpn -i tun0 -c 10.11.33.50 -d\n# \u914d\u7f6e tun \u7f51\u5361\u5730\u5740\nsudo ifconfig tun0 192.168.0.11 netmask 255.255.255.0<\/code><\/pre>\n\n\n\n
\u6b64\u65f6\u4e24\u53f0\u4e3b\u673a\u4f4d\u4e8e 192.168.0.0\/24<\/code> \u865a\u62df\u7f51\u7edc\u7f51\u6bb5\u4e0b\uff0c\u53ef\u4ee5\u76f8\u4e92\u901a\u4fe1\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
6.\u865a\u62df\u901a\u4fe1\u94fe\u8def\u4e24\u7aef\u901a\u4fe1<\/p>\n\n\n\n
0x04 \u8bbf\u95ee\u5185\u7f51\u7f51\u6bb5<\/h3>\n\n\n\n
\u5728\u4e0a\u6587\u7684\u9a8c\u8bc1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u4e24\u7aef\u7684\u865a\u62df\u7f51\u7edc\u642d\u5efa\u548c\u901a\u4fe1\uff0c\u4f46\u5b9e\u9645 VPN \u7684\u4f7f\u7528\u573a\u666f\u662f\u9700\u8981\u901a\u8fc7 VPN \u8bbf\u95ee\u6574\u4e2a\u5185\u7f51\u7f51\u6bb5\uff0c\u5728\u8fd9\u79cd\u4f7f\u7528\u573a\u666f\u4e0b\uff0cVPN server \u81f3\u5c11\u914d\u7f6e\u6709\u4e24\u5f20\u7269\u7406\u7f51\u5361\uff0c\u5176\u4e2d\u4e00\u5f20\u63a5\u5165\u5185\u7f51\u7f51\u6bb5\uff0c\u53e6\u4e00\u5f20\u5219\u8fde\u63a5\u5230\u4e92\u8054\u7f51\u3002<\/p>\n\n\n\n
\u6309\u7167 0x03 \u865a\u62df\u901a\u4fe1\u94fe\u8def<\/code> \u7684\u94fe\u8def\uff0cVPN client \u53d1\u9001\u62a5\u6587\u5230\u5185\u7f51\u4e3b\u673a\uff0cVPN server \u63a5\u6536\u5230\u8be5\u62a5\u6587\u540e\uff0c\u5c06\u5176\u5199\u5165\u5230\u865a\u62df\u7f51\u5361\u4e2d\uff0c\u968f\u540e\u62a5\u6587\u8fdb\u5165 TCP\/IP \u534f\u8bae\u6808\uff0c\u4f46\u662f\u7531\u4e8e IP \u5730\u5740\u4e0d\u662f VPN server \u81ea\u5df1\uff0c\u8be5\u62a5\u6587\u4f1a\u88ab\u4e22\u5f03\uff0c\u65e0\u6cd5\u6b63\u5e38\u8fdb\u884c\u901a\u4fe1\uff1b\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u501f\u52a9\u300c\u62a5\u6587\u8f6c\u53d1\u300d\uff0c\u5c06\u5185\u7f51\u62a5\u6587\u4ece\u865a\u62df\u7f51\u5361\u8f6c\u53d1\u5230\u5185\u7f51\u7f51\u5361\u4e0a\u3002\u5176\u65b0\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
7.VPN\u8bbf\u95ee\u5185\u7f51\u7f51\u6bb5<\/p>\n\n\n\n
VPN server \u4e00\u822c\u4f1a\u4f5c\u4e3a\u5185\u7f51\u7f51\u5173\uff0c\u5185\u7f51\u4e3b\u673a\u65e0\u9700\u4efb\u4f55\u989d\u5916\u914d\u7f6e\u5c31\u53ef\u4ee5\u5728\u865a\u62df\u7f51\u6bb5\u4e0b\u6b63\u5e38\u5de5\u4f5c\u3002<\/p><\/blockquote>\n\n\n\n
\u6211\u4eec\u6309\u7167\u8be5\u6d41\u7a0b\u914d\u7f6e\u6d4b\u8bd5\u73af\u5883\uff0c\u590d\u7528 0x03 \u865a\u62df\u901a\u4fe1\u94fe\u8def<\/code> \u4e2d\u7684\u73af\u5883\uff0c\u5728 VPN server \u4e0a\u6211\u4eec\u4f7f\u7528 docker \u6a21\u62df\u5185\u7f51\u7f51\u6bb5\u548c\u4e3b\u673a\uff0c\u5176\u73af\u5883\u642d\u5efa\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
8.VPN\u6d4b\u8bd5\u73af\u5883\u642d\u5efa<\/p>\n\n\n\n
\u7136\u540e\u6309\u7167 0x03 \u865a\u62df\u901a\u4fe1\u94fe\u8def<\/code> \u4e2d\u7684\u65b9\u5f0f\uff0c\u542f\u52a8 simpletun<\/code> \u5e76\u4f7f\u7528 ifconfig<\/code> \u914d\u7f6e ip \u5730\u5740\uff0c\u521b\u5efa\u865a\u62df\u901a\u4fe1\u94fe\u8def\uff1b\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\u5f00\u542f\u62a5\u6587\u8f6c\u53d1\uff1a<\/p>\n\n\n\n
# \u4e34\u65f6\u5f00\u542f\u62a5\u6587\u8f6c\u53d1\necho \"1\" > \/proc\/sys\/net\/ipv4\/ip_forward<\/code><\/pre>\n\n\n\n
\u5b9e\u9645\u4e0a\u5728\u8be5\u6d4b\u8bd5\u73af\u5883\u4e0b\uff0cdocker \u4f1a\u81ea\u52a8\u5f00\u542f\u62a5\u6587\u8f6c\u53d1<\/p><\/blockquote>\n\n\n\n
\u518d\u901a\u8fc7 iptables<\/code> \u914d\u7f6e\u8f6c\u53d1\u7b56\u7565\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
# \u5c06\u5165\u53e3\u7f51\u5361\u3001\u6765\u6e90ip\u4e3a 192.168.0.0\/24 \u8f6c\u53d1\u81f3 docker0\nsudo iptables -A FORWARD -i tun0 -s 192.168.0.0\/24 -o docker0 -j ACCEPT\n# \u5c06\u5165\u53e3\u7f51\u5361\u3001\u76ee\u7684ip\u4e3a 192.168.0.0\/24 \u8f6c\u53d1\u81f3 tun0\nsudo iptables -A FORWARD -i docker0 -d 192.168.0.0\/24 -o tun0 -j ACCEPT<\/code><\/pre>\n\n\n\n
\u5b9e\u9645\u4e0a\u5728\u8be5\u6d4b\u8bd5\u73af\u5883\u4e0b\uff0c\u7b2c\u4e8c\u6761\u53ef\u4ee5\u4e0d\u7528\u914d\u7f6e\uff0c\u56e0\u4e3a docker \u4f1a\u81ea\u52a8\u914d\u7f6e\u8f6c\u53d1\u7b56\u7565\uff0c\u4f1a\u8986\u76d6\u8fd9\u6761\u7b56\u7565<\/p><\/blockquote>\n\n\n\n
\u9664\u6b64\u4e4b\u5916\uff0c\u4e3a\u4e86\u5728 VPN client \u53ef\u4ee5\u8bbf\u95ee\u5230\u5185\u7f51\u4e3b\u673a\uff0c\u9700\u8981\u624b\u52a8\u6dfb\u52a0\u8def\u7531\uff1a<\/p>\n\n\n\n
# VPN client \u6dfb\u52a0\u5185\u7f51\u7f51\u6bb5\u8def\u7531\uff0c\u8bbe\u7f6e\u4e3a\u865a\u62df\u7f51\u7edc\u8bbe\u5907 tun0\nsudo route add -net 172.17.0.0\/24 tun0<\/code><\/pre>\n\n\n\n
\u6b64\u65f6 VPN \u914d\u7f6e\u5b8c\u6210\uff0c\u5185\u7f51\u4e3b\u673a\u548c VPN client \u76f8\u4e92\u8fde\u901a\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
9.\u5185\u7f51\u4e3b\u673a\u8bbf\u95ee\u4ee5\u53ca\u9a8c\u8bc1<\/p>\n\n\n\n
0x05 \u62d3\u5c55<\/h3>\n\n\n\n
\u4e0a\u6587\u4e2d\u6211\u4eec\u4f7f\u7528\u6700\u5c0f\u5b9e\u73b0\u9a8c\u8bc1\u4e86 VPN \u7684\u5de5\u4f5c\u539f\u7406\uff0c\u4f46\u662f\u5b9e\u9645\u573a\u666f\u5374\u6bd4\u8fd9\u4e2a\u590d\u6742\u5f88\u591a\uff0c\u8fd9\u91cc\u6211\u4eec\u7b80\u5355\u629b\u51fa\u4e00\u4e9b\u95ee\u9898\u4f5c\u4e3a\u62d3\u5c55\u5b66\u4e60\u3002<\/p>\n\n\n\n
1.VPN\u4f5c\u4e3a\u7f51\u5173\uff1f<\/strong>
VPN server \u4e00\u822c\u4f5c\u4e3a\u7f51\u5173\u8fdb\u884c\u914d\u7f6e\uff0c\u5185\u7f51\u4e3b\u673a\u4e0d\u7528\u8fdb\u884c\u989d\u5916\u914d\u7f6e\uff0c\u4e5f\u53ef\u4ee5\u628a\u62a5\u6587\u53d1\u9001\u7ed9 VPN server\u3002<\/p>\n\n\n\n
2.UDP\u901a\u4fe1\u94fe\u8def\uff1f<\/strong>
\u5728 simpletun<\/code> \u4e2d VPN server \u548c client \u4e4b\u95f4\u4f7f\u7528 TCP \u8fdb\u884c\u901a\u4fe1\uff0c\u4f46\u662f\u5728\u5b9e\u9645\u573a\u666f\u4e00\u822c\u4f7f\u7528 UDP \u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n\n\n\n
\u5f53\u4f7f\u7528 TCP \u4f5c\u4e3a\u901a\u4fe1\u96a7\u9053\u65f6\uff0c\u5e76\u4e14\u4e0a\u5c42\u5e94\u7528\u4e5f\u4f7f\u7528 TCP\uff0c\u4e5f\u5c31\u662f tcp in tcp<\/code>\uff0c\u5f53\u51fa\u73b0\u4e22\u5305\u65f6\uff0c\u4e0a\u5c42\u5e94\u7528\u7684 TCP \u548c VPN \u901a\u4fe1\u96a7\u9053\u7684 TCP \u90fd\u4f1a\u8fdb\u884c\u91cd\u4f20\uff0c\u4ece\u800c\u901a\u4fe1\u4e2d\u51fa\u73b0\u5927\u91cf\u7684\u91cd\u4f20\u62a5\u6587\uff0c\u964d\u4f4e\u901a\u4fe1\u6548\u7387\uff1b\u5982\u679c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4ee5 UDP \u4f5c\u4e3a\u901a\u4fe1\u96a7\u9053\uff0ctcp in udp<\/code>\uff0c\u4e22\u5305\u540e\u5c06\u53ea\u7531\u4e0a\u5c42\u5e94\u7528\u7684 TCP \u8fdb\u884c\u91cd\u4f20\u3002<\/p>\n\n\n\n
3.etc<\/strong><\/p>\n\n\n\n
0x06 \u603b\u7ed3<\/h3>\n\n\n\n
\u6700\u540e\u611f\u8c22 rook1e@\u77e5\u9053\u521b\u5b87404\u5b9e\u9a8c\u5ba4 \u5c0f\u4f19\u4f34\u540c\u6211\u4e00\u8d77\u5b66\u4e60\u548c\u7814\u7a76\uff0c\u89e3\u51b3\u4e86\u8bf8\u591a\u95ee\u9898\u3002<\/p>\n\n\n\n
\u672c\u6587\u4ece VPN \u539f\u7406\u51fa\u53d1\uff0c\u4ecb\u7ecd\u4e86\u5173\u952e\u4f5c\u7528\u7684 TUN\/TAP \u865a\u62df\u7f51\u7edc\u8bbe\u5907\uff0c\u5e76\u7ed3\u5408 simpletun<\/code> \u521b\u5efa\u4e86\u4e24\u7aef\u7684\u865a\u62df\u901a\u4fe1\u94fe\u8def\uff0c\u6700\u540e\u914d\u5408\u62a5\u6587\u8f6c\u53d1\uff0c\u5b9e\u73b0\u5e76\u9a8c\u8bc1\u4e86 VPN \u7684\u901a\u4fe1\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n\n\n\n
VPN \u7684\u5b9e\u73b0\u8f83\u4e3a\u7b80\u5355\uff0c\u4f46\u6d89\u53ca\u5230\u5404\u79cd\u7ec6\u679d\u672b\u8282\u7684\u7f51\u7edc\u77e5\u8bc6\uff1b\u8fd9\u91cc\u7684\u6700\u5c0f\u9a8c\u8bc1\uff0c\u53ef\u4ee5\u4e3a\u6211\u4eec\u5b9e\u73b0\u66f4\u4e3a\u590d\u6742\u7684 VPN \u6216\u57fa\u4e8e VPN \u6280\u672f\u7684\u5176\u4ed6\u9879\u76ee\u63d0\u4f9b\u53c2\u8003\u3002<\/p>\n\n\n\n
\n\n\n\n
References:
https:\/\/zh.wikipedia.org\/wiki\/%E8%99%9B%E6%93%AC%E7%A7%81%E4%BA%BA%E7%B6%B2%E8%B7%AF<\/a>
https:\/\/zhaohuabing.com\/post\/2020-02-24-linux-taptun\/<\/a>
https:\/\/www.cnblogs.com\/sparkdev\/p\/9262825.html<\/a>
https:\/\/serverfault.com\/questions\/39307\/linux-ip-forwarding-for-openvpn-correct-firewall-setup<\/a>
https:\/\/liuyehcf.github.io\/2019\/08\/25\/OpenVPN-%E8%BD%AC%E8%BD%BD\/<\/a>
https:\/\/yunfwe.cn\/2018\/05\/24\/2018\/%E4%B8%80%E8%B5%B7%E5%8A%A8%E6%89%8B%E5%86%99%E4%B8%80%E4%B8%AAVPN\/<\/a>
https:\/\/github.com\/gregnietsky\/simpletun<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
0x00 \u524d\u8a00 \u7531\u4e8e VPN \u5728\u4e0d\u540c\u7cfb\u7edf\u4e0b\u7684\u5b9e\u73b0\u65b9\u5f0f\u4e0d\u540c\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u5b66\u4e60\u548c\u7406\u89e3\uff0c\u8fd9\u91cc\u6211\u4eec\u9009\u62e9 Linu […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[56],"class_list":["post-256","post","type-post","status-publish","format-standard","hentry","category-70","tag-56"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/256"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=256"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/256\/revisions"}],"predecessor-version":[{"id":266,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/256\/revisions\/266"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=256"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}