{"id":55645,"date":"2025-08-14T06:04:26","date_gmt":"2025-08-13T22:04:26","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/55645.html"},"modified":"2025-08-14T06:04:26","modified_gmt":"2025-08-13T22:04:26","slug":"%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%bd%91%e7%bb%9c-%e9%98%b2%e7%81%ab%e5%a2%99%ef%bc%88firewall%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/55645.html","title":{"rendered":"\u8ba1\u7b97\u673a\u7f51\u7edc---\u9632\u706b\u5899\uff08Firewall\uff09"},"content":{"rendered":"<h3>\u4e00\u3001\u9632\u706b\u5899\u7684\u57fa\u672c\u6982\u5ff5\u4e0e\u6838\u5fc3\u4f5c\u7528<\/h3>\n<h4>1.1 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\/>\n<img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813220425-689d0be92cad7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"400\" \/><\/p>\n<h4>1.2 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decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813220425-689d0be9b1879.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"480\" \/><\/p>\n<h3>\u4e09\u3001\u9632\u706b\u5899\u7684\u5206\u7c7b&#xff1a;\u4ece\u7b80\u5355\u8fc7\u6ee4\u5230\u667a\u80fd\u9632\u5fa1<\/h3>\n<p>\u968f\u7740\u7f51\u7edc\u5a01\u80c1\u7684\u6f14\u8fdb&#xff0c;\u9632\u706b\u5899\u6280\u672f\u4e5f\u5728\u4e0d\u65ad\u5347\u7ea7&#xff0c;\u4ece\u65e9\u671f\u7684\u7b80\u5355\u5305\u8fc7\u6ee4\u53d1\u5c55\u5230\u96c6\u6210\u591a\u79cd\u529f\u80fd\u7684\u4e0b\u4e00\u4ee3\u9632\u706b\u5899\u3002\u6839\u636e\u6280\u672f\u539f\u7406\u548c\u529f\u80fd&#xff0c;\u9632\u706b\u5899\u53ef\u5206\u4e3a\u4ee5\u4e0b\u51e0\u7c7b&#xff1a;<\/p>\n<h4>3.1 \u7f51\u7edc\u5c42\u9632\u706b\u5899&#xff08;\u5305\u8fc7\u6ee4\u9632\u706b\u5899&#xff09;<\/h4>\n<p>\u6280\u672f\u539f\u7406&#xff1a;\u5de5\u4f5c\u5728OSI\u6a21\u578b\u7684\u7f51\u7edc\u5c42&#xff08;IP\u5c42&#xff09;\u548c\u4f20\u8f93\u5c42&#xff08;TCP\/UDP\u5c42&#xff09;&#xff0c;\u57fa\u4e8e\u6570\u636e\u5305\u7684IP\u5730\u5740\u3001\u7aef\u53e3\u3001\u534f\u8bae\u7b49\u7279\u5f81\u8fdb\u884c\u8fc7\u6ee4&#xff0c;\u4e0d\u89e3\u6790\u5e94\u7528\u5c42\u5185\u5bb9\u3002<br \/>\n\u6838\u5fc3\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u901f\u5ea6\u5feb\u3001\u5f00\u9500\u4f4e&#xff1a;\u4ec5\u5bf9\u6570\u636e\u5305\u5934\u90e8\u8fdb\u884c\u68c0\u6d4b&#xff0c;\u4e0d\u5904\u7406\u6570\u636e\u5185\u5bb9&#xff0c;\u9002\u5408\u9ad8\u6d41\u91cf\u573a\u666f\u3002<\/li>\n<li>\u65e0\u72b6\u6001\u68c0\u6d4b&#xff1a;\u4e0d\u8bb0\u5f55\u8fde\u63a5\u5386\u53f2&#xff0c;\u6bcf\u4e2a\u6570\u636e\u5305\u72ec\u7acb\u5224\u65ad&#xff08;\u4f8b\u5982&#xff0c;\u5141\u8bb8\u5185\u90e8\u4e3b\u673a\u8bbf\u95ee\u5916\u90e880\u7aef\u53e3&#xff0c;\u4f46\u65e0\u6cd5\u8bc6\u522b\u201c\u5916\u90e8\u4e3b\u673a\u4e3b\u52a8\u5411\u5185\u90e8\u53d1\u9001\u768480\u7aef\u53e3\u54cd\u5e94\u662f\u5426\u5408\u6cd5\u201d&#xff09;\u3002<\/li>\n<li>\u89c4\u5219\u7b80\u5355&#xff1a;\u57fa\u4e8eACL&#xff08;\u8bbf\u95ee\u63a7\u5236\u5217\u8868&#xff09;\u5b9a\u4e49\u89c4\u5219&#xff0c;\u4f8b\u5982\u201c\u5141\u8bb8192.168.1.0\/24\u7f51\u6bb5\u8bbf\u95ee203.0.113.0\/24\u7f51\u6bb5\u768480\u7aef\u53e3\u201d\u3002<\/li>\n<\/ul>\n<p>\u5c40\u9650\u6027&#xff1a;\u65e0\u6cd5\u9632\u5fa1\u9488\u5bf9\u5e94\u7528\u5c42\u7684\u653b\u51fb&#xff08;\u5982SQL\u6ce8\u5165\u3001\u8de8\u7ad9\u811a\u672c\u653b\u51fb&#xff09;&#xff0c;\u4e14\u96be\u4ee5\u5e94\u5bf9IP\u4f2a\u9020\u7b49\u6b3a\u9a97\u624b\u6bb5\u3002<\/p>\n<h4>3.2 \u72b6\u6001\u68c0\u6d4b\u9632\u706b\u5899&#xff08;\u52a8\u6001\u5305\u8fc7\u6ee4\u9632\u706b\u5899&#xff09;<\/h4>\n<p>\u6280\u672f\u539f\u7406&#xff1a;\u5728\u5305\u8fc7\u6ee4\u57fa\u7840\u4e0a\u589e\u52a0\u201c\u72b6\u6001\u8ddf\u8e2a\u201d\u529f\u80fd&#xff0c;\u5de5\u4f5c\u5728\u4f20\u8f93\u5c42&#xff0c;\u901a\u8fc7\u7ef4\u62a4\u201c\u8fde\u63a5\u72b6\u6001\u8868\u201d\u8bb0\u5f55\u6240\u6709\u6d3b\u8dc3\u8fde\u63a5\u7684\u4fe1\u606f&#xff08;\u5982TCP\u4e09\u6b21\u63e1\u624b\u72b6\u6001\u3001\u8fde\u63a5\u6301\u7eed\u65f6\u95f4&#xff09;&#xff0c;\u4ec5\u5141\u8bb8\u5c5e\u4e8e\u201c\u5df2\u5efa\u7acb\u5408\u6cd5\u8fde\u63a5\u201d\u7684\u6570\u636e\u5305\u901a\u8fc7\u3002<br \/>\n\u6838\u5fc3\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u6709\u72b6\u6001\u68c0\u6d4b&#xff1a;\u4f8b\u5982&#xff0c;\u5185\u90e8\u4e3b\u673a\u53d1\u8d77TCP\u8fde\u63a5&#xff08;\u53d1\u9001SYN\u5305&#xff09;\u540e&#xff0c;\u9632\u706b\u5899\u4f1a\u8bb0\u5f55\u8be5\u8fde\u63a5\u72b6\u6001&#xff0c;\u4ec5\u5141\u8bb8\u5916\u90e8\u8fd4\u56de\u7684SYN&#043;ACK\u5305\u901a\u8fc7&#xff0c;\u62d2\u7edd\u5176\u4ed6\u975e\u5173\u8054\u6570\u636e\u5305\u3002<\/li>\n<li>\u5b89\u5168\u6027\u9ad8\u4e8e\u5305\u8fc7\u6ee4\u9632\u706b\u5899&#xff1a;\u53ef\u6709\u6548\u62e6\u622a\u4f2a\u88c5\u6210\u201c\u54cd\u5e94\u5305\u201d\u7684\u6076\u610f\u6d41\u91cf\u3002<\/li>\n<li>\u89c4\u5219\u66f4\u7075\u6d3b&#xff1a;\u652f\u6301\u57fa\u4e8e\u8fde\u63a5\u72b6\u6001\u7684\u52a8\u6001\u89c4\u5219&#xff08;\u5982\u201c\u4ec5\u5141\u8bb8\u5185\u90e8\u4e3b\u52a8\u53d1\u8d77\u7684\u8fde\u63a5\u7684\u56de\u5e94\u5305\u8fdb\u5165\u201d&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u5e94\u7528\u573a\u666f&#xff1a;\u4e2d\u5c0f\u578b\u4f01\u4e1a\u7f51\u7edc\u8fb9\u754c&#xff0c;\u9700\u5e73\u8861\u6027\u80fd\u4e0e\u5b89\u5168\u6027\u7684\u573a\u666f\u3002<\/p>\n<h4>3.3 \u5e94\u7528\u5c42\u9632\u706b\u5899&#xff08;\u4ee3\u7406\u9632\u706b\u5899&#xff09;<\/h4>\n<p>\u6280\u672f\u539f\u7406&#xff1a;\u5de5\u4f5c\u5728OSI\u6a21\u578b\u7684\u5e94\u7528\u5c42&#xff0c;\u4f5c\u4e3a\u201c\u4e2d\u95f4\u4eba\u201d\u4ee3\u7406\u6240\u6709\u8fdb\u51fa\u7f51\u7edc\u7684\u5e94\u7528\u5c42\u6d41\u91cf&#xff08;\u5982HTTP\u3001FTP\u3001\u90ae\u4ef6&#xff09;\u3002\u5185\u90e8\u4e3b\u673a\u4e0d\u76f4\u63a5\u4e0e\u5916\u90e8\u901a\u4fe1&#xff0c;\u800c\u662f\u901a\u8fc7\u9632\u706b\u5899\u8f6c\u53d1\u8bf7\u6c42&#xff0c;\u9632\u706b\u5899\u4f1a\u89e3\u6790\u5e94\u7528\u5c42\u6570\u636e\u5e76\u9a8c\u8bc1\u5408\u6cd5\u6027\u3002<br \/>\n\u6838\u5fc3\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u6df1\u5ea6\u68c0\u6d4b&#xff1a;\u53ef\u89e3\u6790\u5e94\u7528\u5c42\u5185\u5bb9&#xff08;\u5982\u68c0\u67e5HTTP\u8bf7\u6c42\u4e2d\u7684\u6076\u610f\u4ee3\u7801\u3001FTP\u6587\u4ef6\u7684\u75c5\u6bd2\u626b\u63cf&#xff09;\u3002<\/li>\n<li>\u5b8c\u5168\u9694\u79bb&#xff1a;\u5185\u90e8\u7f51\u7edc\u7684IP\u5730\u5740\u4e0d\u4f1a\u66b4\u9732\u7ed9\u5916\u90e8&#xff0c;\u5b89\u5168\u6027\u6781\u9ad8\u3002<\/li>\n<li>\u652f\u6301\u7528\u6237\u8ba4\u8bc1&#xff1a;\u53ef\u8981\u6c42\u7528\u6237\u767b\u5f55\u540e\u624d\u80fd\u8bbf\u95ee\u5916\u90e8\u8d44\u6e90&#xff08;\u5982\u4f01\u4e1aVPN\u4ee3\u7406&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u5c40\u9650\u6027&#xff1a;<\/p>\n<ul>\n<li>\u901f\u5ea6\u6162&#xff1a;\u9700\u89e3\u6790\u5e94\u7528\u5c42\u6570\u636e&#xff0c;\u5904\u7406\u5f00\u9500\u5927&#xff0c;\u4e0d\u9002\u5408\u9ad8\u5e26\u5bbd\u573a\u666f\u3002<\/li>\n<li>\u517c\u5bb9\u6027\u5dee&#xff1a;\u9700\u9488\u5bf9\u4e0d\u540c\u5e94\u7528&#xff08;\u5982HTTP\u3001SMTP&#xff09;\u5f00\u53d1\u4ee3\u7406\u6a21\u5757&#xff0c;\u5bf9\u65b0\u5174\u5e94\u7528\u652f\u6301\u4e0d\u8db3\u3002<\/li>\n<\/ul>\n<h4>3.4 \u4e0b\u4e00\u4ee3\u9632\u706b\u5899&#xff08;NGFW&#xff09;<\/h4>\n<p>\u6280\u672f\u80cc\u666f&#xff1a;\u4f20\u7edf\u9632\u706b\u5899\u4ec5\u80fd\u57fa\u4e8eIP\u3001\u7aef\u53e3\u63a7\u5236\u6d41\u91cf&#xff0c;\u65e0\u6cd5\u5e94\u5bf9\u57fa\u4e8e\u5e94\u7528\u7684\u653b\u51fb&#xff08;\u5982\u5229\u7528HTTP\u534f\u8bae\u4f20\u64ad\u75c5\u6bd2&#xff09;\u548c\u9ad8\u7ea7\u5a01\u80c1&#xff08;\u5982APT\u653b\u51fb&#xff09;\u3002NGFW\u57282009\u5e74\u7531Gartner\u63d0\u51fa&#xff0c;\u6574\u5408\u4e86\u4f20\u7edf\u9632\u706b\u5899\u3001\u5165\u4fb5\u9632\u5fa1\u7cfb\u7edf&#xff08;IPS&#xff09;\u3001\u5e94\u7528\u8bc6\u522b\u3001\u7528\u6237\u8ba4\u8bc1\u7b49\u529f\u80fd\u3002<br \/>\n\u6838\u5fc3\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u5e94\u7528\u5c42\u53ef\u89c1\u6027&#xff1a;\u53ef\u8bc6\u522b2000&#043;\u79cd\u5e94\u7528&#xff08;\u5982\u5fae\u4fe1\u3001\u6296\u97f3\u3001\u8fc5\u96f7&#xff09;&#xff0c;\u5373\u4f7f\u5e94\u7528\u4f7f\u7528\u975e\u6807\u51c6\u7aef\u53e3&#xff08;\u5982\u7528443\u7aef\u53e3\u7684P2P\u8f6f\u4ef6&#xff09;\u4e5f\u80fd\u88ab\u68c0\u6d4b\u3002<\/li>\n<li>\u96c6\u6210IPS&#xff1a;\u901a\u8fc7\u7279\u5f81\u5e93\u548c\u884c\u4e3a\u5206\u6790&#xff0c;\u5b9e\u65f6\u62e6\u622a\u6f0f\u6d1e\u5229\u7528\u3001\u6076\u610f\u4ee3\u7801\u7b49\u653b\u51fb\u3002<\/li>\n<li>\u7528\u6237\u4e0e\u8bbe\u5907\u5173\u8054&#xff1a;\u5c06\u6d41\u91cf\u4e0e\u7528\u6237\u8d26\u53f7&#xff08;\u800c\u975e\u4ec5IP&#xff09;\u7ed1\u5b9a&#xff0c;\u4fbf\u4e8e\u6743\u9650\u7ba1\u7406&#xff08;\u5982\u201c\u5141\u8bb8\u5e02\u573a\u90e8\u8bbf\u95ee\u793e\u4ea4\u5a92\u4f53&#xff0c;\u7981\u6b62\u7814\u53d1\u90e8\u8bbf\u95ee\u201d&#xff09;\u3002<\/li>\n<li>\u5a01\u80c1\u60c5\u62a5\u8054\u52a8&#xff1a;\u63a5\u5165\u5168\u7403\u5a01\u80c1\u60c5\u62a5\u5e93&#xff0c;\u8bc6\u522b\u5df2\u77e5\u6076\u610fIP\u3001\u57df\u540d&#xff0c;\u63d0\u524d\u62e6\u622a\u5a01\u80c1\u3002<\/li>\n<\/ul>\n<p>\u5e94\u7528\u573a\u666f&#xff1a;\u5927\u578b\u4f01\u4e1a\u3001\u6570\u636e\u4e2d\u5fc3\u3001\u653f\u5e9c\u673a\u6784\u7b49\u5bf9\u5b89\u5168\u8981\u6c42\u9ad8\u7684\u573a\u666f\u3002<\/p>\n<h4>3.5 \u5176\u4ed6\u7c7b\u578b\u9632\u706b\u5899<\/h4>\n<ul>\n<li>\u4e2a\u4eba\u9632\u706b\u5899&#xff1a;\u5b89\u88c5\u5728\u4e2a\u4eba\u7535\u8111\u6216\u79fb\u52a8\u8bbe\u5907\u4e0a\u7684\u8f6f\u4ef6&#xff08;\u5982Windows\u9632\u706b\u5899&#xff09;&#xff0c;\u63a7\u5236\u5355\u53f0\u8bbe\u5907\u7684\u8fdb\u51fa\u6d41\u91cf\u3002<\/li>\n<li>\u4e91\u9632\u706b\u5899&#xff1a;\u90e8\u7f72\u5728\u4e91\u5e73\u53f0&#xff08;\u5982AWS\u3001\u963f\u91cc\u4e91&#xff09;\u7684\u865a\u62df\u9632\u706b\u5899&#xff0c;\u652f\u6301\u5f39\u6027\u6269\u5c55&#xff0c;\u9002\u5e94\u4e91\u73af\u5883\u4e2d\u52a8\u6001\u53d8\u5316\u7684\u865a\u62df\u673a\u548c\u5bb9\u5668\u3002<\/li>\n<li>\u5206\u5e03\u5f0f\u9632\u706b\u5899&#xff1a;\u7a81\u7834\u4f20\u7edf\u201c\u8fb9\u754c\u9632\u62a4\u201d\u6a21\u5f0f&#xff0c;\u5728\u7f51\u7edc\u4e2d\u7684\u6bcf\u4e2a\u8282\u70b9&#xff08;\u670d\u52a1\u5668\u3001\u7ec8\u7aef&#xff09;\u90e8\u7f72\u9632\u706b\u5899\u6a21\u5757&#xff0c;\u5b9e\u73b0\u201c\u7aef\u5230\u7aef\u201d\u7684\u7ec6\u7c92\u5ea6\u63a7\u5236\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250813220425-689d0be9c593d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" width=\"480\" \/><\/p>\n<h3>\u56db\u3001\u9632\u706b\u5899\u7684\u6838\u5fc3\u6280\u672f&#xff1a;\u4ece\u89c4\u5219\u5b9a\u4e49\u5230\u5a01\u80c1\u9632\u5fa1<\/h3>\n<p>\u9632\u706b\u5899\u7684\u529f\u80fd\u5b9e\u73b0\u4f9d\u8d56\u4e8e\u4e00\u7cfb\u5217\u6838\u5fc3\u6280\u672f&#xff0c;\u8fd9\u4e9b\u6280\u672f\u51b3\u5b9a\u4e86\u5176\u5b89\u5168\u6027\u3001\u6027\u80fd\u548c\u9002\u7528\u6027\u3002<\/p>\n<h4>4.1 \u8bbf\u95ee\u63a7\u5236\u5217\u8868&#xff08;ACL&#xff09;<\/h4>\n<p>ACL\u662f\u5305\u8fc7\u6ee4\u548c\u72b6\u6001\u68c0\u6d4b\u9632\u706b\u5899\u7684\u57fa\u7840&#xff0c;\u662f\u4e00\u7ec4\u6709\u5e8f\u7684\u89c4\u5219\u96c6\u5408&#xff0c;\u6bcf\u6761\u89c4\u5219\u5305\u542b\u201c\u5339\u914d\u6761\u4ef6\u201d\u548c\u201c\u6267\u884c\u52a8\u4f5c\u201d&#xff08;\u5141\u8bb8\/\u62d2\u7edd&#xff09;\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p>\u89c4\u52191&#xff1a;\u5141\u8bb8 \u6e90IP&#061;192.168.1.0\/24 \u76ee\u7684IP&#061;any \u534f\u8bae&#061;TCP \u76ee\u7684\u7aef\u53e3&#061;80 \u2192 \u5141\u8bb8<br \/>\n\u89c4\u52192&#xff1a;\u5141\u8bb8 \u6e90IP&#061;192.168.1.0\/24 \u76ee\u7684IP&#061;any \u534f\u8bae&#061;TCP \u76ee\u7684\u7aef\u53e3&#061;443 \u2192 \u5141\u8bb8<br \/>\n\u89c4\u52193&#xff1a;\u62d2\u7edd \u6e90IP&#061;any \u76ee\u7684IP&#061;192.168.1.0\/24 \u534f\u8bae&#061;TCP \u76ee\u7684\u7aef\u53e3&#061;3389 \u2192 \u62d2\u7edd<br \/>\n\u89c4\u52194&#xff1a;\u62d2\u7edd \u6240\u6709\u672a\u5339\u914d\u7684\u6d41\u91cf \u2192 \u62d2\u7edd<\/p>\n<p>ACL\u89c4\u5219\u9075\u5faa\u201c\u5339\u914d\u5373\u505c\u6b62\u201d\u539f\u5219&#xff0c;\u56e0\u6b64\u89c4\u5219\u7684\u987a\u5e8f\u81f3\u5173\u91cd\u8981&#xff08;\u9700\u5c06\u7cbe\u786e\u89c4\u5219\u653e\u5728\u524d\u9762&#xff0c;\u907f\u514d\u88ab\u901a\u7528\u89c4\u5219\u8986\u76d6&#xff09;\u3002<\/p>\n<h4>4.2 \u7f51\u7edc\u5730\u5740\u8f6c\u6362&#xff08;NAT&#xff09;<\/h4>\n<p>NAT\u6280\u672f\u901a\u8fc7\u5c06\u5185\u90e8\u7f51\u7edc\u7684\u79c1\u6709IP\u5730\u5740\u8f6c\u6362\u4e3a\u516c\u5171IP\u5730\u5740&#xff0c;\u89e3\u51b3\u4e86\u516c\u7f51IP\u5730\u5740\u4e0d\u8db3\u7684\u95ee\u9898&#xff0c;\u540c\u65f6\u9690\u85cf\u4e86\u5185\u90e8\u7f51\u7edc\u7ed3\u6784\u3002\u5176\u6838\u5fc3\u7c7b\u578b\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>\u6e90NAT&#xff08;SNAT&#xff09;&#xff1a;\u5185\u90e8\u4e3b\u673a\u8bbf\u95ee\u5916\u90e8\u65f6&#xff0c;\u5c06\u6e90IP&#xff08;\u79c1\u6709IP&#xff09;\u8f6c\u6362\u4e3a\u9632\u706b\u5899\u7684\u516c\u7f51IP&#xff0c;\u5916\u90e8\u4ec5\u80fd\u770b\u5230\u516c\u7f51IP&#xff0c;\u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee\u5185\u90e8\u4e3b\u673a\u3002<\/li>\n<li>\u76ee\u7684NAT&#xff08;DNAT&#xff09;&#xff1a;\u5916\u90e8\u4e3b\u673a\u8bbf\u95ee\u5185\u90e8\u670d\u52a1&#xff08;\u5982Web\u670d\u52a1\u5668&#xff09;\u65f6&#xff0c;\u5c06\u76ee\u7684IP&#xff08;\u516c\u7f51IP&#xff09;\u8f6c\u6362\u4e3a\u5185\u90e8\u670d\u52a1\u5668\u7684\u79c1\u6709IP&#xff08;\u5982\u5c06\u516c\u7f51IP 203.0.113.1\u768480\u7aef\u53e3\u6620\u5c04\u5230\u5185\u90e8192.168.1.10\u768480\u7aef\u53e3&#xff09;\u3002<\/li>\n<\/ul>\n<p>NAT\u4e0e\u9632\u706b\u5899\u7ed3\u5408&#xff0c;\u53ef\u663e\u8457\u63d0\u5347\u5185\u90e8\u7f51\u7edc\u7684\u9690\u853d\u6027&#xff0c;\u51cf\u5c11\u88ab\u76f4\u63a5\u653b\u51fb\u7684\u98ce\u9669\u3002<\/p>\n<h4>4.3 \u5165\u4fb5\u9632\u5fa1\u7cfb\u7edf&#xff08;IPS&#xff09;\u96c6\u6210<\/h4>\n<p>\u73b0\u4ee3\u9632\u706b\u5899&#xff08;\u5c24\u5176\u662fNGFW&#xff09;\u666e\u904d\u96c6\u6210IPS\u529f\u80fd&#xff0c;\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u68c0\u6d4b\u548c\u62e6\u622a\u653b\u51fb&#xff1a;<\/p>\n<ul>\n<li>\u7279\u5f81\u5339\u914d&#xff1a;\u57fa\u4e8e\u5df2\u77e5\u653b\u51fb\u7684\u7279\u5f81\u5e93&#xff08;\u5982\u75c5\u6bd2\u7b7e\u540d\u3001\u6f0f\u6d1e\u5229\u7528\u4ee3\u7801\u7247\u6bb5&#xff09;&#xff0c;\u5339\u914d\u6570\u636e\u5305\u4e2d\u7684\u6076\u610f\u5185\u5bb9\u3002<\/li>\n<li>\u5f02\u5e38\u68c0\u6d4b&#xff1a;\u901a\u8fc7\u5206\u6790\u6d41\u91cf\u7684\u884c\u4e3a\u7279\u5f81&#xff08;\u5982\u5f02\u5e38\u7684\u8fde\u63a5\u9891\u7387\u3001\u6570\u636e\u5305\u5927\u5c0f&#xff09;&#xff0c;\u8bc6\u522b\u672a\u77e5\u5a01\u80c1&#xff08;\u5982\u96f6\u65e5\u6f0f\u6d1e\u653b\u51fb&#xff09;\u3002<\/li>\n<li>\u534f\u8bae\u5408\u89c4\u6027\u68c0\u67e5&#xff1a;\u9a8c\u8bc1\u6570\u636e\u5305\u662f\u5426\u7b26\u5408\u534f\u8bae\u89c4\u8303&#xff08;\u5982TCP\u662f\u5426\u5b8c\u6210\u4e09\u6b21\u63e1\u624b\u3001HTTP\u8bf7\u6c42\u683c\u5f0f\u662f\u5426\u5408\u6cd5&#xff09;&#xff0c;\u62e6\u622a\u7578\u5f62\u6570\u636e\u5305\u653b\u51fb\u3002<\/li>\n<\/ul>\n<h4>4.4 \u5e94\u7528\u8bc6\u522b\u4e0e\u63a7\u5236<\/h4>\n<p>\u4f20\u7edf\u9632\u706b\u5899\u901a\u8fc7\u7aef\u53e3\u8bc6\u522b\u5e94\u7528&#xff08;\u598280\u7aef\u53e3\u5bf9\u5e94HTTP&#xff09;&#xff0c;\u4f46\u73b0\u4ee3\u5e94\u7528\u5e38\u4f7f\u7528\u52a8\u6001\u7aef\u53e3\u6216\u4f2a\u88c5\u7aef\u53e3&#xff08;\u5982\u5fae\u4fe1\u7528443\u7aef\u53e3\u4f20\u8f93\u6570\u636e&#xff09;\u3002\u5e94\u7528\u8bc6\u522b\u6280\u672f\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u7cbe\u51c6\u8bc6\u522b\u5e94\u7528&#xff1a;<\/p>\n<ul>\n<li>\u6df1\u5ea6\u5305\u68c0\u6d4b&#xff08;DPI&#xff09;&#xff1a;\u89e3\u6790\u6570\u636e\u5305\u7684\u5e94\u7528\u5c42\u6570\u636e&#xff08;\u5982HTTP\u5934\u90e8\u7684User-Agent\u5b57\u6bb5\u3001SSL\u8bc1\u4e66\u4fe1\u606f&#xff09;&#xff0c;\u5339\u914d\u5e94\u7528\u7279\u5f81\u5e93\u3002<\/li>\n<li>\u884c\u4e3a\u5206\u6790&#xff1a;\u57fa\u4e8e\u8fde\u63a5\u5efa\u7acb\u65b9\u5f0f\u3001\u6570\u636e\u4f20\u8f93\u9891\u7387\u7b49\u884c\u4e3a\u7279\u5f81\u8bc6\u522b\u5e94\u7528&#xff08;\u5982P2P\u5e94\u7528\u7684\u591a\u8fde\u63a5\u7279\u5f81&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u8bc6\u522b\u540e&#xff0c;\u9632\u706b\u5899\u53ef\u5b9e\u73b0\u7cbe\u7ec6\u5316\u63a7\u5236&#xff08;\u5982\u201c\u7981\u6b62\u5de5\u4f5c\u65f6\u95f4\u4f7f\u7528\u6296\u97f3\u201d\u201c\u9650\u5236\u8fc5\u96f7\u7684\u4e0b\u8f7d\u5e26\u5bbd\u201d&#xff09;\u3002<\/p>\n<h4>4.5 VPN&#xff08;\u865a\u62df\u4e13\u7528\u7f51\u7edc&#xff09;\u652f\u6301<\/h4>\n<p>\u9632\u706b\u5899\u5e38\u96c6\u6210VPN\u529f\u80fd&#xff0c;\u5141\u8bb8\u8fdc\u7a0b\u7528\u6237\u6216\u5206\u652f office \u901a\u8fc7\u52a0\u5bc6\u901a\u9053\u8bbf\u95ee\u5185\u90e8\u7f51\u7edc&#xff0c;\u4fdd\u969c\u6570\u636e\u4f20\u8f93\u5b89\u5168\u3002\u5e38\u89c1\u7684VPN\u7c7b\u578b\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>IPsec VPN&#xff1a;\u5de5\u4f5c\u5728\u7f51\u7edc\u5c42&#xff0c;\u9002\u7528\u4e8e\u5206\u652f\u7f51\u7edc\u4e0e\u603b\u90e8\u7f51\u7edc\u7684\u4e92\u8054&#xff0c;\u52a0\u5bc6\u6574\u4e2aIP\u6570\u636e\u5305\u3002<\/li>\n<li>SSL VPN&#xff1a;\u5de5\u4f5c\u5728\u5e94\u7528\u5c42&#xff0c;\u7528\u6237\u901a\u8fc7\u6d4f\u89c8\u5668\u5373\u53ef\u63a5\u5165&#xff0c;\u65e0\u9700\u5b89\u88c5\u4e13\u7528\u5ba2\u6237\u7aef&#xff0c;\u9002\u7528\u4e8e\u79fb\u52a8\u529e\u516c\u573a\u666f\u3002<\/li>\n<\/ul>\n<h3>\u4e94\u3001\u9632\u706b\u5899\u7684\u5e94\u7528\u573a\u666f&#xff1a;\u4ece\u4e2a\u4eba\u5230\u4f01\u4e1a&#xff0c;\u4ece\u7269\u7406\u5230\u4e91\u7aef<\/h3>\n<p>\u9632\u706b\u5899\u7684\u5e94\u7528\u573a\u666f\u8986\u76d6\u4e86\u6240\u6709\u9700\u8981\u7f51\u7edc\u9694\u79bb\u548c\u8bbf\u95ee\u63a7\u5236\u7684\u73af\u5883&#xff0c;\u4e0d\u540c\u573a\u666f\u5bf9\u9632\u706b\u5899\u7684\u529f\u80fd\u9700\u6c42\u5dee\u5f02\u663e\u8457\u3002<\/p>\n<h4>5.1 \u4f01\u4e1a\u7f51\u7edc\u8fb9\u754c\u9632\u62a4<\/h4>\n<p>\u4f01\u4e1a\u5185\u90e8\u7f51\u7edc&#xff08;LAN&#xff09;\u4e0e\u4e92\u8054\u7f51&#xff08;WAN&#xff09;\u7684\u8fb9\u754c\u662f\u653b\u51fb\u7684\u4e3b\u8981\u5165\u53e3&#xff0c;\u9632\u706b\u5899\u5728\u6b64\u5904\u7684\u6838\u5fc3\u4f5c\u7528\u662f&#xff1a;<\/p>\n<ul>\n<li>\u5141\u8bb8\u5185\u90e8\u5458\u5de5\u8bbf\u95ee\u5916\u90e8\u5fc5\u8981\u670d\u52a1&#xff08;\u5982\u7f51\u9875\u3001\u90ae\u4ef6&#xff09;&#xff0c;\u7981\u6b62\u5916\u90e8\u672a\u6388\u6743\u8bbf\u95ee\u5185\u90e8\u8d44\u6e90&#xff08;\u5982\u6570\u636e\u5e93\u3001OA\u7cfb\u7edf&#xff09;\u3002<\/li>\n<li>\u9694\u79bbDMZ\u533a&#xff08;\u975e\u519b\u4e8b\u5316\u533a&#xff09;&#xff1a;DMZ\u533a\u653e\u7f6e\u9762\u5411\u5916\u90e8\u7684\u670d\u52a1&#xff08;\u5982\u4f01\u4e1a\u5b98\u7f51\u670d\u52a1\u5668\u3001\u90ae\u4ef6\u670d\u52a1\u5668&#xff09;&#xff0c;\u9632\u706b\u5899\u8bbe\u7f6e\u89c4\u5219\u4ec5\u5141\u8bb8\u5916\u90e8\u8bbf\u95eeDMZ\u533a\u7684\u7279\u5b9a\u7aef\u53e3&#xff0c;\u540c\u65f6\u9650\u5236DMZ\u533a\u4e0e\u5185\u90e8LAN\u7684\u901a\u4fe1&#xff0c;\u964d\u4f4e\u5185\u90e8\u7f51\u7edc\u88ab\u5165\u4fb5\u7684\u98ce\u9669\u3002<\/li>\n<li>\u4f8b&#xff1a;\u67d0\u4f01\u4e1a\u9632\u706b\u5899\u89c4\u5219\u8bbe\u7f6e\u4e3a\u201c\u5141\u8bb8LAN\u8bbf\u95ee\u4e92\u8054\u7f51\u768480\/443\u7aef\u53e3&#xff1b;\u5141\u8bb8\u4e92\u8054\u7f51\u8bbf\u95eeDMZ\u533a\u768480\u7aef\u53e3&#xff08;Web\u670d\u52a1\u5668&#xff09;&#xff1b;\u7981\u6b62DMZ\u533a\u8bbf\u95eeLAN\u76841433\u7aef\u53e3&#xff08;SQL Server&#xff09;\u201d\u3002<\/li>\n<\/ul>\n<h4>5.2 \u6570\u636e\u4e2d\u5fc3\u5b89\u5168\u9632\u62a4<\/h4>\n<p>\u6570\u636e\u4e2d\u5fc3\u96c6\u4e2d\u4e86\u4f01\u4e1a\u7684\u6838\u5fc3\u6570\u636e\u548c\u670d\u52a1&#xff0c;\u9632\u706b\u5899\u9700\u5b9e\u73b0\u66f4\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236&#xff1a;<\/p>\n<ul>\n<li>\u5185\u90e8\u533a\u57df\u9694\u79bb&#xff1a;\u5c06\u6570\u636e\u4e2d\u5fc3\u5212\u5206\u4e3aWeb\u670d\u52a1\u5668\u533a\u3001\u5e94\u7528\u670d\u52a1\u5668\u533a\u3001\u6570\u636e\u5e93\u670d\u52a1\u5668\u533a&#xff0c;\u901a\u8fc7\u9632\u706b\u5899\u9650\u5236\u533a\u57df\u95f4\u7684\u8bbf\u95ee&#xff08;\u5982\u4ec5\u5141\u8bb8\u5e94\u7528\u670d\u52a1\u5668\u8bbf\u95ee\u6570\u636e\u5e93\u670d\u52a1\u5668\u76843306\u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u6d41\u91cf\u53ef\u89c6\u5316&#xff1a;\u901a\u8fc7\u9632\u706b\u5899\u65e5\u5fd7\u5206\u6790\u6d41\u91cf\u8d8b\u52bf&#xff0c;\u8bc6\u522b\u5f02\u5e38\u8bbf\u95ee&#xff08;\u5982\u67d0\u53f0\u670d\u52a1\u5668\u7a81\u7136\u4ea7\u751f\u5927\u91cf outbound \u6d41\u91cf&#xff0c;\u53ef\u80fd\u662f\u88ab\u690d\u5165\u4e86\u6728\u9a6c&#xff09;\u3002<\/li>\n<li>\u9ad8\u53ef\u7528\u6027&#xff1a;\u91c7\u7528\u53cc\u673a\u70ed\u5907&#xff08;\u4e3b\u5907\u9632\u706b\u5899&#xff09;&#xff0c;\u907f\u514d\u5355\u70b9\u6545\u969c\u5bfc\u81f4\u7f51\u7edc\u4e2d\u65ad\u3002<\/li>\n<\/ul>\n<h4>5.3 \u5bb6\u5ead\u4e0e\u4e2a\u4eba\u7f51\u7edc\u9632\u62a4<\/h4>\n<p>\u5bb6\u5ead\u7f51\u7edc\u901a\u8fc7\u8def\u7531\u5668\u5185\u7f6e\u7684\u9632\u706b\u5899\u5b9e\u73b0\u57fa\u7840\u9632\u62a4&#xff1a;<\/p>\n<ul>\n<li>\u9ed8\u8ba4\u62d2\u7edd\u5916\u90e8\u4e3b\u52a8\u8bbf\u95ee\u5185\u90e8\u8bbe\u5907&#xff08;\u5982\u7981\u6b62\u5916\u90e8\u4e3b\u673aping\u5bb6\u5ead\u7f51\u7edc\u7684IP&#xff09;\u3002<\/li>\n<li>\u9650\u5236\u5185\u90e8\u8bbe\u5907\u7684\u8bbf\u95ee\u6743\u9650&#xff08;\u5982\u5bb6\u957f\u63a7\u5236\u529f\u80fd&#xff0c;\u7981\u6b62\u513f\u7ae5\u8bbe\u5907\u8bbf\u95ee\u4e0d\u826f\u7f51\u7ad9&#xff09;\u3002<\/li>\n<li>\u4e2a\u4eba\u7535\u8111\u5b89\u88c5\u7684\u8f6f\u4ef6\u9632\u706b\u5899&#xff08;\u5982Windows Defender\u9632\u706b\u5899&#xff09;\u53ef\u8fdb\u4e00\u6b65\u63a7\u5236\u5355\u53f0\u8bbe\u5907\u7684\u8fdb\u7a0b\u8054\u7f51\u6743\u9650&#xff08;\u5982\u7981\u6b62\u67d0\u53ef\u7591\u7a0b\u5e8f\u8bbf\u95ee\u7f51\u7edc&#xff09;\u3002<\/li>\n<\/ul>\n<h4>5.4 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\u96f6\u4fe1\u4efb\u67b6\u6784\u4e0b\u7684\u9632\u706b\u5899<\/h4>\n<p>\u4f20\u7edf\u9632\u706b\u5899\u57fa\u4e8e\u201c\u8fb9\u754c\u4fe1\u4efb\u201d\u6a21\u578b&#xff08;\u9ed8\u8ba4\u5185\u90e8\u7f51\u7edc\u53ef\u4fe1&#xff0c;\u5916\u90e8\u4e0d\u53ef\u4fe1&#xff09;&#xff0c;\u4f46\u5185\u90e8\u5a01\u80c1&#xff08;\u5982\u5458\u5de5\u8bef\u64cd\u4f5c\u3001\u6076\u610f 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