{"id":200657,"date":"2020-11-20T01:52:13","date_gmt":"2020-11-19T17:52:13","guid":{"rendered":"http:\/\/4563.org\/?p=200657"},"modified":"2020-11-20T01:52:13","modified_gmt":"2020-11-19T17:52:13","slug":"%e8%83%bd%e5%88%a9%e7%94%a8-smtp-imap-%e4%ba%92%e7%9b%b8%e5%8f%91%e9%80%81-ip%e9%81%8d%e5%8e%86%e7%8c%9c%e6%b5%8b-port-%e6%9d%a5%e5%ae%9e%e7%8e%b0-p2p-%e7%9a%84-udp-%e9%80%9a%e8%ae%af%e5%90%97","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=200657","title":{"rendered":"\u80fd\u5229\u7528 SMTP\/IMAP \u4e92\u76f8\u53d1\u9001 IP+\u904d\u5386\u731c\u6d4b port \u6765\u5b9e\u73b0 P2P \u7684 UDP \u901a\u8baf\u5417\uff1f"},"content":{"rendered":"
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\u80fd\u5229\u7528 SMTP\/IMAP \u4e92\u76f8\u53d1\u9001 IP+\u904d\u5386\u731c\u6d4b port \u6765\u5b9e\u73b0 P2P \u7684 UDP \u901a\u8baf\u5417\uff1f <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : ashiamd <\/span> <\/i> 4<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n
    \n
  1. \n

    \u9996\u5148\uff0c\u8bf4\u4e0b\u6211\u81ea\u5df1\u5bf9 NAPT \u7684\u7406\u89e3\uff1a<\/p>\n

    \uff08 1 \uff09\u5e73\u65f6\u5982\u679c\u8981\u81ea\u5df1\u901a\u8fc7 NAPT \u6765\u5b9e\u73b0\u4e24\u4e2a\u65e0\u516c\u7f51 IP \u7684\u5ba2\u6237\u7aef\u7684\u5bf9\u63a5\uff0c\u90a3\u4e48\u6b63\u5e38\u662f\u8981\u901a\u8fc7\u4e00\u4e2a\u62e5\u6709\u516c\u7f51\u7684\u670d\u52a1\u5668(\u4e3b\u673a)\u6765\u5b8c\u6210\u53cc\u65b9\u4e92\u76f8\u53d1\u73b0\u7684\u8fc7\u7a0b\u3002<\/p>\n

    \uff08 2 \uff09 NAPT \u6839\u636e\u6211\u6240\u77e5\uff0c\u5c31\u662f\u65e0\u516c\u7f51 IP \u7684\u666e\u901a\u7528\u6237\u5176 IP+Port \u88ab ISP \u7f51\u7edc\u670d\u52a1\u63d0\u4f9b\u5546\u6620\u5c04\u5230\u4e00\u4e2a\u516c\u7f51 IP+Port\uff0c\u7136\u540e\u7528\u8fd9\u4e2a ISP \u7684\u516c\u7f51 ip+port \u548c\u5916\u90e8\u8054\u7cfb\u3002<\/p>\n

    \uff08 3 \uff09\u4e4b\u524d\u6211\u4e00\u4e2a\u9879\u76ee\u91cc\u670d\u52a1\u5668\u6536\u5230\u7684\u5ba2\u6237\u7aef IP \u5c31\u662f ISP \u7684 IP\uff0c\u5370\u8c61\u91cc\u6211\u90a3\u65f6\u5019\u6d4b\u8bd5\uff0c\u81ea\u5df1\u672c\u5730\u662f\u5927\u6982 40-50 \u79d2\u5de6\u53f3 NAPT \u4f1a\u53d8\u66f4\u7aef\u53e3\uff0c\u5982\u679c\u5f00\u591a\u4e2a\u5ba2\u6237\u7aef\uff0c\u5219 30 \uff5e 40 \u79d2\u5de6\u53f3\u662f\u4e00\u4e2a\u7a33\u5b9a\u7684 NAPT \u80fd\u4fdd\u6d3b\u7684\u65f6\u95f4\uff08\u5373\u80fd\u590d\u7528\u539f\u672c\u7684 port \uff09<\/p>\n<\/li>\n<\/ol>\n

    ============================<\/p>\n

      \n
    1. \u7136\u540e\u5c31\u662f\u6211\u5bf9 SMTP\/IMAP \u6765\u5b9e\u73b0 NAPT \u7684\u731c\u60f3<\/li>\n<\/ol>\n

      \u5927\u81f4\u731c\u60f3\u5982\u4e0b\uff1a<\/p>\n

      \uff08 1 \uff09\u56e0\u4e3a SMTP\/IMAP \u6709\u5f88\u591a\u5f00\u53d1\u5305+\u5927\u591a\u6570\u90ae\u7bb1\u63d0\u4f9b\u5bf9\u5e94\u7684\u652f\u6301\uff0c\u90a3\u4e48\u80fd\u4e0d\u80fd\u5b9a\u65f6\u53d1\u9001\u52a0\u5bc6\u540e\u7684\u90ae\u4ef6\u5230\u90ae\u7bb1\u670d\u52a1\u5668\uff1b\u53e6\u4e00\u5934\u518d\u81ea\u52a8\u62c9\u53d6\u90ae\u4ef6\u89e3\u5bc6\uff0c\u7136\u540e\u901a\u8fc7\u90ae\u4ef6\u91cc\u7684\u4fe1\u606f\u5f97\u77e5\u5bf9\u9762\u7684 IP(\u5176\u7f51\u7edc\u670d\u52a1\u63d0\u4f9b\u5546 ISP \u8fdb\u884c\u6620\u5c04\u540e\u7684 IP)\u3002  \uff08 2 \uff09\u7b2c\u4e00\u6b65\u9aa4\u53ea\u77e5\u9053 ip\uff0c\u7136\u540e\u9700\u8981\u731c\u6d4b\u7aef\u53e3 port \u662f\u591a\u5c11\uff0c\u7aef\u53e3\u603b\u5171 65535 \u4e2a\uff0c\u5047\u8bbe 4 \u6838 CPU \u5f00 4 \u7ebf\u7a0b\u5e76\u884c\u6267\u884c\u53d1\u9001 UDP \u5305\u7ed9\u8fdc\u7a0b IP(\u901a\u8fc7\u90ae\u4ef6\u5f97\u77e5\u7684\u5bf9\u9762 ISP \u7684\u516c\u7f51 IP)\uff0c\u5047\u8bbe port \u4fdd\u6d3b\u5c31 30s\uff0c\u90a3\u4e48\u5927\u6982\u9700\u8981\u53d1\u9001\uff08 65535 \/ 4 \/ 30 \uff09= 546.125 \u4e2a\u5305\u6bcf\u79d2\u3002  \uff08 3 \uff09\u5047\u8bbe\u8fd9\u4e48\u5938\u5f20\u7684 UDP \u53d1\u9001\uff0c\u6ca1\u88ab ISP \u9650\u6d41\u4ec0\u4e48\u7684\uff0c\u90a3\u63a5\u6536\u65b9\u5c31\u80fd\u6839\u636e\u6536\u5230\u7684 UDP \u5305(\u5047\u8bbe\u6570\u636e\u52a0\u5bc6\uff0c\u53ea\u6709\u81ea\u5df1\u80fd\u89e3\u5bc6)\u5f97\u77e5\u5bf9\u65b9\u7684 IP+port \uff1b\u7136\u540e\u56de\u53d1 UDP \u6570\u636e  \uff08 4 \uff09\u53cc\u65b9\u4e92\u76f8\u5f97\u77e5\u5bf9\u65b9 IP+port \u4e4b\u540e\uff0c\u4e4b\u540e\u5c31 UDP \u4ea4\u6d41\u4e86\u3002 <\/code><\/pre>\n
      =================================<\/p>\n
      \u7a81\u7136\u5192\u51fa\u8fd9\u79cd\u5947\u602a\u7684\u60f3\u6cd5\uff0c\u8bf7\u95ee\u8fd9\u7c7b\u60f3\u6cd5\u53ef\u884c\u4e0d\uff1f<\/p>\n<\/p><\/div>\n
       \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (1<\/span>)        <\/div>\n
       <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
        \n
      • \n
        \n
        \n
         \u8cc7\u6df1\u5927\u4f6c : julyclyde <\/span>  <\/div>\n
         <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                     1 \u5176\u5b9e\u5185\u5bb9\u90fd\u4e0d\u7528\u5199\uff0c\u770b\u770b\u90ae\u4ef6\u5934\u5c31\u884c\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
      • \n","protected":false},"excerpt":{"rendered":"
        \u80fd\u5229\u7528 SMTP\/IMAP \u4e92\u76f8\u53d1…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/200657"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=200657"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/200657\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=200657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=200657"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=200657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}