\u4e00\u7bc7\u6709\u65b9\u6821\u957f\u7f72\u540d\u7684\u4e00\u7bc7\u7efc\u8ff0\u6587\u7ae0\u201c\u7f51\u7edc\u6d41\u91cf\u5206\u7c7b\u7814\u7a76\u8fdb\u5c55\u4e0e\u5c55\u671b\u201d\uff0c\u5176\u4e2d\u4ecb\u7ecd\u4e86\u6d41\u91cf\u5206\u7c7b\u9762\u4e34\u7684\u6311\u6218\u4e0e\u6280\u672f\u624b\u6bb5\uff0c\u90e8\u5206\u5185\u5bb9\u4f3c\u4e4e\u4e0e\u6700\u8fd1\u5c01\u9501OpenVPN\u6709\u5173\uff1a<\/p>\n
4.2 \u52a0\u5bc6\u6d41\u91cf\u5206\u7c7b<\/p>\n
\u968f\u7740\u7f51\u7edc\u8d44\u6e90\u548c\u5e26\u5bbd\u7684\u9010\u6e10\u5b8c\u5584,\u7528\u6237\u66f4\u6ce8\u610f\u4fdd\u62a4\u9690\u79c1,\u52a0\u5bc6\u5e94\u7528\u88ab\u5e7f\u6cdb\u4f7f\u7528,\u52a0\u5bc6\u6d41\u5206\u7c7b\u6210\u4e3a\u6d41\u91cf \u5206\u7c7b\u4e2d\u7684\u6311\u6218\u6027\u95ee\u9898\u4e4b\u4e00\u3002<\/p>\n
\u4f20\u7edf\u7684\u57fa\u4e8e\u719f\u77e5\u7aef\u53e3\u53f7\u7684\u6d41\u5206\u7c7b\u65b9\u6cd5\u5728\u5927\u591a\u5e94\u7528 \u7aef\u53e3\u968f\u673a\u53ef\u53d8\u548c\u7aef\u53e3\u5171\u7528\u60c5\u51b5\u4e0b\u5df2\u7ecf\u5931\u6548,\u800c\u57fa\u4e8e\u6709 \u6548\u8d1f\u8f7d\u7684\u6d41\u5206\u7c7b\u65b9\u6cd5\u5bf9\u52a0\u5bc6\u6d41\u91cf\u4e5f\u675f\u624b\u65e0\u7b56,\u5e76\u4e14\u5b58 \u5728\u9690\u79c1\u4fb5\u72af\u7684\u95ee\u9898,\u8017\u8d39\u8d44\u6e90\u8f83\u5927\u3002<\/p>\n
2006\u5e74\u4ee5\u6765,\u5728\u6d41\u91cf\u5206\u7c7b\u9886\u57df,\u5bf9\u52a0\u5bc6\u6d41\u7684\u5206\u7c7b \u95ee\u9898\u6210\u4e3a\u4e00\u4e2a\u91cd\u8981\u7684\u7814\u7a76\u65b9\u9762,\u5927\u591a\u6570\u7814\u7a76\u90fd\u91c7\u7528\u4e86 \u57fa\u4e8e\u6d41\u7279\u5f81\u7684\u7edf\u8ba1\u8bc6\u522b\u65b9\u6cd5\u3002\u76ee\u524d\u7814\u7a76\u7684\u52a0\u5bc6\u6d41\u91cf\u4e3b \u8981\u5305\u62ec\u56db\u7c7b\u5178\u578b\u6d41\u91cf:SSH\u96a7\u9053\u3001IPSEC\u96a7\u9053\u3001SSL, \u4ee5\u53caP2P\u7684\u52a0\u5bc6\u6d41\u91cf\u3002\u5176\u4e2d,\u5bf9\u4e8eSSH\u7684\u7814\u7a76\u8f83\u591a, \u4e3b\u8981\u4fa7\u91cd\u4e8e\u5bf9SSH\u96a7\u9053\u4e2d\u7684\u5e94\u7528\u8fdb\u884c\u6709\u6548\u7684\u5206\u7c7b\u8bc6 \u522b,\u4f7f\u7528\u7684\u65b9\u6cd5\u57fa\u672c\u90fd\u662f\u57fa\u4e8e\u6d41\u7279\u5f81\u7684\u8bc6\u522b,\u4e3b\u8981\u4f7f \u7528\u673a\u5668\u5b66\u4e60\u7684\u65b9\u6cd5,\u4f8b\u5982\u6734\u7d20\u8d1d\u53f6\u65af\u3001C4.5\u51b3\u7b56\u6811\u3001 SVM\u3001k-means\u3001k-nearest neighbor\u7b49\u7b97\u6cd5,\u8fd8\u6709 \u57fa\u4e8e\u9ad8\u65af\u6df7\u5408\u6a21\u578b(Gaussian mixture models)\u3001 \u9690\u9a6c\u5c14\u53ef\u592b\u6a21\u578b(hidden Markov model, HMM)\u548c \u6700\u5927\u4f3c\u7136\u5206\u7c7b\u7b49,\u53e6\u5916\u8fd8\u6709\u4f7f\u7528\u57fa\u4e8e\u4e3b\u673a\u884c\u4e3a\u7684\u5206\u7c7b \u65b9\u6cd5[37],\u4e3b\u8981\u57fa\u4e8e\u534f\u8bae\u8fde\u63a5\u6a21\u578b,\u901a\u8fc7\u6e90IP\u3001\u76ee\u7684 IP\u548c\u8fde\u63a5\u7279\u5f81\u7b49\u7279\u5f81\u503c\u6765\u8bc6\u522b,\u4f46\u8fd9\u79cd\u65b9\u6cd5\u81ea\u8eab\u5177\u6709 \u4e00\u5b9a\u5c40\u9650\u6027,\u4e14\u4e0d\u5bb9\u6613\u8fbe\u5230\u9ad8\u7cbe\u786e\u5ea6,\u56e0\u6b64\u7814\u7a76\u8005\u4e00 \u822c\u8f83\u5c11\u4f7f\u7528\u3002<\/p>\n
\u5bf9\u4e8eSSL\u548cSSH\u6d41\u91cf\u7684\u5206\u7c7b\u901a\u5e38\u5206\u4e3a\u4e24\u6b65[38][39], \u7b2c\u4e00\u6b65\u6839\u636e\u534f\u8bae\u81ea\u8eab\u7279\u6027(\u5982\u534f\u8bae\u9996\u90e8\u7279\u5b9a\u5b57\u8282\u7684\u7279 \u5f81\u6216\u5bc6\u94a5\u4ea4\u6362\u7279\u5f81\u7b49)\u8bc6\u522b\u51faSSL\u6216SSH\u6d41\u91cf,\u7b2c\u4e8c\u6b65 \u5bf9\u52a0\u5bc6\u96a7\u9053\u4e2d\u7684\u4e0d\u540c\u5e94\u7528\u6570\u636e\u6d41\u8fdb\u884c\u5206\u7c7b\u3002Dusi[40] \u7b49\u4eba\u4f7f\u7528\u9ad8\u65af\u6df7\u5408\u6a21\u578b(GMM)\u548c\u652f\u6301\u5411\u91cf\u673a(SVM) \u6280\u672f,\u5bf9\u8fd0\u884c\u5728SSH\u96a7\u9053\u4e2d\u7684\u5e94\u7528(\u5047\u8bbe\u540c\u4e00\u65f6\u523bSSH \u96a7\u9053\u4e2d\u53ea\u6709\u4e00\u79cd\u5e94\u7528)\u8fdb\u884c\u5206\u7c7b(\u5305\u62ecHTTP\u3001POP3\u3001 POP3S\u3001EMULE\u3001unknown)\u3002\u5b9e\u9a8c\u9009\u53d6\u5305\u957f\u5ea6\u548c\u6570\u636e \u5305\u65b9\u5411(\u670d\u52a1\u5668\u5230\u5ba2\u6237\u7aef\u6216\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668)\u4f5c\u4e3a\u7279 \u5f81\u503c,\u7ed3\u679c\u663e\u793a\u4e24\u79cd\u5206\u7c7b\u65b9\u6cd5\u5bf9POP3\u548cPOP3S\u7c7b\u7684\u5e94 \u7528\u8bc6\u522b\u6548\u679c\u6700\u597d,\u771f\u6b63\u7387\u5747\u8d85\u8fc7\u4e8698%,GMM\u5bf9HTTP\u5e94 \u7528\u7684\u8bc6\u522b\u51c6\u786e\u7387\u9ad8\u4e8eSVM,\u5bf9EMULE\u7684\u8bc6\u522b\u51c6\u786e\u7387\u5219\u4f4e \u4e8eSVM\u3002<\/p>\n
\u4e00\u4e9b\u7814\u7a76\u8005\u5bf9\u591a\u79cd\u5206\u7c7b\u65b9\u6cd5\u8fdb\u884c\u6bd4\u8f83,\u5e76\u901a\u8fc7 \u5b9e\u9a8c\u63d0\u53d6\u51fa\u7528\u4e8e\u8bc6\u522b\u52a0\u5bc6\u6d41\u91cf\u7684\u4e00\u822c\u6027\u6d41\u7279\u5f81\u30022007 \u5e74,Alshammari[41]\u7b49\u4eba\u4f7f\u7528\u4e86\u4e24\u79cd\u6709\u76d1\u7763\u7684\u673a\u5668\u5b66\u4e60 \u7b97\u6cd5AdaBoost\u548cPIPPER\u8bc6\u522b\u7f51\u7edc\u4e2d\u7684SSH\u6d41\u91cf,\u5e76\u8fdb\u4e00 \u6b65\u5bf9SSH\u5e94\u7528\u7c7b\u578b(\u5982ssh,scp,sftp,tunnel\u7b49)\u8fdb<\/p>\n
\u884c\u5206\u7c7b,\u901a\u8fc7\u4e24\u79cd\u65b9\u6cd5\u7684\u5bf9\u6bd4,PIPPER\u7684\u5206\u7c7b\u6548\u679c\u8981 \u4f18\u4e8eAdaBoost,\u5176\u51c6\u786e\u7387\u8fbe\u523099%,\u5047\u6b63\u7387\u4e3a0.7%\u3002 \u5b9e\u9a8c\u540c\u65f6\u8bf4\u660e\u4e86,\u901a\u8fc7\u57fa\u4e8e\u6d41\u7edf\u8ba1\u7279\u5f81\u7684\u65b9\u6cd5,\u800c\u4e0d \u4f7f\u7528IP\u5730\u5740\u3001\u7aef\u53e3\u3001\u6709\u6548\u8f7d\u8377\u7b49\u4fe1\u606f\u5bf9SSH\u6d41\u91cf\u8fdb\u884c \u7cbe\u786e\u8bc6\u522b\u662f\u53ef\u884c\u7684\u3002\u4e4b\u540e,Alshammari[42]\u7b49\u4eba\u53c8\u5bf9\u4ee5 SSH\u548cSkype\u4e3a\u4ee3\u8868\u7684\u52a0\u5bc6\u6d41\u91cf\u8fdb\u884c\u4e86\u8fdb\u4e00\u6b65\u7684\u7814\u7a76, \u5e76\u4f7f\u7528\u4e94\u79cd\u673a\u5668\u5b66\u4e60\u7b97\u6cd5(AdaBoost\u3001SVM\u3001\u6734\u7d20\u8d1d\u53f6 \u65af\u3001RIPPER\u3001C4.5\u51b3\u7b56\u6811)\u8fdb\u884c\u5bf9\u6bd4,\u5bf9\u6bd4\u7ed3\u679c\u663e\u793a \u57fa\u4e8eC4.5\u51b3\u7b56\u6811\u7684\u5206\u7c7b\u5668\u7684\u5206\u7c7b\u6548\u679c\u6700\u597d\u3002<\/p>\n
\u5355\u72ec\u7684\u4e00\u79cd\u5206\u7c7b\u65b9\u6cd5\u901a\u5e38\u5728\u67d0\u65b9\u9762\u6709\u4f18\u52bf,\u4f46 \u4e0d\u53ef\u907f\u514d\u7684\u5728\u53e6\u4e00\u65b9\u9762\u5b58\u5728\u52a3\u52bf,\u4e3a\u4e86\u83b7\u5f97\u66f4\u597d\u7684 \u5206\u7c7b\u6548\u679c,\u4e00\u4e9b\u7814\u7a76\u8005\u4f7f\u7528\u4e86\u4e00\u79cd\u6216\u591a\u79cd\u5206\u7c7b\u65b9\u6cd5 \u7ed3\u5408\u7684\u6280\u672f\u8fdb\u884c\u7814\u7a76\u3002Bar-Yanai[43]\u7b49\u4eba\u63d0\u51fa\u4e86\u4e00\u79cd \u5b9e\u65f6\u7684\u52a0\u5bc6\u6d41\u91cf\u5206\u7c7b\u65b9\u6cd5,\u5c06k-means\u548ck-nearest neighbor\u4e24\u79cd\u5206\u7c7b\u5668\u76f8\u7ed3\u5408,\u4f7f\u752817\u4e2a\u6d41\u7279\u5f81,\u5206\u6790 \u6bcf\u4e2a\u6d41\u7684\u524d100\u4e2a\u5305\u7684\u7edf\u8ba1\u4fe1\u606f,\u5e76\u8fdb\u884c\u5206\u7c7b\u3002\u4f20\u7edf \u7684k-nearest neighbor\u5206\u7c7b\u7b97\u6cd5\u5206\u7c7b\u51c6\u786e\u7387\u9ad8,\u4f46\u5206 \u7c7b\u901f\u5ea6\u6162,\u800ck-means\u7b97\u6cd5\u5219\u76f8\u53cd\u3002\u5b9e\u9a8c\u5c06\u4e24\u79cd\u5206\u7c7b \u5668\u76f8\u7ed3\u5408,\u5206\u7c7b\u901f\u5ea6\u5feb\u3001\u5206\u7c7b\u51c6\u786e\u7387\u9ad8,\u6bd4\u4f7f\u7528\u5355\u72ec \u4e00\u79cd\u5206\u7c7b\u7b97\u6cd5\u7684\u6548\u679c\u8981\u597d\u5f88\u591a\u3002<\/p>\n
SSH\u96a7\u9053\u4e0b\u53ef\u627f\u8f7d\u5f88\u591a\u7c7b\u578b\u7684\u5e94\u7528,\u867d\u7136\u8bc6\u522b\u96a7 \u9053\u5e94\u7528\u7684\u5b58\u5728\u5e76\u4e0d\u56f0\u96be,\u4f46\u8981\u8bc6\u522b\u51fa\u96a7\u9053\u4e2d\u7684\u5177\u4f53\u5e94 \u7528\u7c7b\u578b\u5c31\u6709\u5f88\u5927\u6311\u6218\u3002Tan[44]\u7b49\u4eba\u63d0\u51fa\u4e86\u4e00\u79cd\u5229\u7528\u6700 \u5927\u4f3c\u7136\u5206\u7c7b\u5668\u5bf9SSH\u96a7\u9053\u4e2d\u7684\u5e94\u7528\u8fdb\u884c\u5206\u7c7b\u7684\u65b9\u6cd5, \u8be5\u65b9\u6cd5\u9996\u5148\u9700\u8981\u8bc6\u522b\u51faSSH Tunnel\u6d41\u7684\u5efa\u7acb\u8fb9\u754c,\u7136 \u540e\u4e22\u5f03\u8be5\u8fb9\u754c\u4e4b\u524d\u7684\u6570\u636e\u5305,\u53ea\u9700\u8981\u5206\u6790\u8be5\u8fb9\u754c\u4e4b\u540e \u7684\u8fde\u7eedL\u4e2a\u6570\u636e\u5305\u7684\u7edf\u8ba1\u4fe1\u606f,\u5bf9SSH\u96a7\u9053\u4e2d\u7684HTTP\u3001 POP3\u3001FTP\u3001SMTP\u56db\u79cd\u7c7b\u578b\u7684\u5e94\u7528\u8fdb\u884c\u5206\u7c7b,\u5206\u7c7b\u7684 \u771f\u6b63\u7387\u4e3a90%\u5de6\u53f3\u3002<\/p>\n
\u4e3a\u4e86\u63d0\u4f9b\u66f4\u597d\u7684\u7f51\u7edc\u670d\u52a1\u8d28\u91cf,\u9700\u8981\u53ca\u65f6\u8bc6\u522b\u51fa \u7f51\u7edc\u4e2d\u7684\u5ef6\u8fdf\u654f\u611f\u5e94\u7528(\u5982VoIP\u3001\u97f3\u89c6\u9891\u7b49),\u5e76\u4e3a \u5176\u63d0\u4f9b\u9ad8\u4f18\u5148\u7ea7\u3002\u8fd9\u4e9b\u5e94\u7528\u901a\u5e38\u4f7f\u7528\u975e\u6807\u51c6\u7aef\u53e3\u53f7, \u5e76\u4e14\u5176\u6570\u636e\u88ab\u52a0\u5bc6,\u6216\u8005\u88ab\u653e\u5165\u52a0\u5bc6\u96a7\u9053\u4e2d\u6267\u884c\u3002 Yildirim[45]\u7b49\u4eba\u4ee5\u5305\u957f\u4f5c\u4e3a\u7279\u5f81\u503c,\u91c7\u7528\u4e86\u673a\u5668\u5b66\u4e60 \u7684\u65b9\u6cd5\u5bf9IPSec\u96a7\u9053\u4e2d\u7684VoIP\u548c\u975eVoIP\u6d41\u91cf\u8fdb\u884c\u4e86\u5206 \u7c7b,\u5e76\u901a\u8fc7\u5bf9\u6bd4\u5b9e\u9a8c\u8bc1\u5b9e\u4e86\u53ca\u65f6\u8bc6\u522b\u51faVoIP\u5e94\u7528\u5e76\u7ed9 \u4e88\u5176\u9ad8\u4f18\u5148\u7ea7\u5bf9\u4e8e\u63d0\u9ad8QoS\u7684\u91cd\u8981\u6027\u3002<\/p>\n
\u5bf9P2P\u5e94\u7528(\u5982BT\u3001Emule\u3001Skype\u7b49)\u8fdb\u884c\u5206\u7c7b \u7684\u6311\u6218\u4e3b\u8981\u96c6\u4e2d\u4e8e\u6570\u636e\u52a0\u5bc6\u548c\u6df7\u6dc6\u534f\u8bae,\u76ee\u524d\u4f7f\u7528\u8f83 \u591a\u7684\u65b9\u6cd5\u662f\u57fa\u4e8e\u6d41\u7279\u5f81\u7684\u7edf\u8ba1\u8bc6\u522b\u65b9\u6cd5,\u4e5f\u6709\u4e00\u4e9b\u7814 \u7a76\u4f7f\u7528\u4e86\u6709\u6548\u8d1f\u8f7d\u548c\u6d41\u7279\u5f81\u76f8\u7ed3\u5408\u7684\u65b9\u6cd5,\u4ed6\u4eec\u4f7f \u7528\u7684\u6709\u6548\u8d1f\u8f7d\u5f80\u5f80\u662f\u4e00\u4e2a\u8fde\u63a5\u7684\u524d\u51e0\u4e2a\u5305\u7684\u9760\u524d\u6570 \u636e,\u4e5f\u662f\u7528\u4e8e\u7edf\u8ba1\u7279\u5f81,\u800c\u4e0d\u662f\u76f4\u63a5\u628a\u67d0\u4e2a\u7279\u5b9a\u5b57\u8282<\/p>\n
\u4e32\u4f5c\u4e3a\u5206\u7c7b\u4f9d\u636e\u3002Hjelmvik[46]\u7b49\u4eba\u5168\u9762\u5c55\u793a\u4e86\u5229\u7528 \u7edf\u8ba1\u5206\u6790\u548c\u7edf\u8ba1\u534f\u8bae\u8bc6\u522b(statistical protocol identification, SPID)\u7b97\u6cd5\u5bf9\u6df7\u6dc6\u534f\u8bae\u8fdb\u884c\u5206\u7c7b \u7684\u6709\u6548\u6027,\u5e76\u901a\u8fc7\u5b9e\u9a8c\u603b\u7ed3\u51fa\u4e86\u5bf9\u4e00\u4e9b\u7279\u5b9a\u6a21\u7cca\u534f \u8bae(\u5305\u62ecBT\u7684MSE\u3001eDonkey\u7684\u6a21\u7cca\u534f\u8bae\u3001Skype\u3001 Spotify)\u8fdb\u884c\u5206\u7c7b\u7684\u6700\u6709\u6548\u7edf\u8ba1\u5c5e\u6027\u3002<\/p>\n
\u603b\u7684\u8bf4\u6765,\u52a0\u5bc6\u6d41\u91cf\u5206\u7c7b\u662f\u6d41\u91cf\u5206\u7c7b\u4e2d\u6700\u5177\u6311\u6218 \u6027\u7684\u95ee\u9898\u4e4b\u4e00,\u76ee\u524d\u7684\u4e3b\u8981\u7814\u7a76\u601d\u8def\u4e3b\u8981\u96c6\u4e2d\u5728\u5404\u79cd \u884c\u4e3a\u7279\u5f81\u63d0\u53d6\u53ca\u7edf\u8ba1\u5206\u6790\u7684\u65b9\u6cd5\u4e0a\u3002\u6211\u4eec\u8ba4\u4e3a,\u57fa\u4e8e \u4e3b\u673a\u884c\u4e3a\u7684\u5173\u8054\u5206\u7c7b\u65b9\u6cd5,\u8f85\u4ee5\u4e3b\u52a8\u9a8c\u8bc1\u7b49\u5176\u5b83\u7684\u6280 \u672f\u624b\u6bb5,\u4e5f\u662f\u8f83\u597d\u7684\u7814\u7a76\u601d\u8def\u4e4b\u4e00\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u7bc7\u6709\u65b9\u6821\u957f\u7f72\u540d\u7684\u4e00\u7bc7\u7efc\u8ff0\u6587\u7ae0\u201c\u7f51\u7edc\u6d41\u91cf\u5206\u7c7b\u7814\u7a76\u8fdb\u5c55\u4e0e\u5c55\u671b\u201d\uff0c\u5176\u4e2d\u4ecb\u7ecd\u4e86\u6d41\u91cf\u5206\u7c7b\u9762\u4e34\u7684\u6311\u6218\u4e0e\u6280\u672f\u624b\u6bb5\uff0c\u90e8\u5206\u5185\u5bb9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","ampforwp-amp-on-off":"","home_featured":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[10466,15300],"tags":[33607,7775,18603],"class_list":["post-266147","post","type-post","status-publish","format-standard","hentry","category-10466","category-15300","tag-33607","tag-gfw","tag-18603","et-doesnt-have-format-content","et_post_format-et-post-format-standard"],"_links":{"self":[{"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/posts\/266147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/comments?post=266147"}],"version-history":[{"count":0,"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/posts\/266147\/revisions"}],"wp:attachment":[{"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/media?parent=266147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/categories?post=266147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chinadigitaltimes.net\/chinese\/wp-json\/wp\/v2\/tags?post=266147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}