{"id":384331,"date":"2021-03-11T07:44:39","date_gmt":"2021-03-10T23:44:39","guid":{"rendered":"http:\/\/4563.org\/?p=384331"},"modified":"2021-03-11T07:44:39","modified_gmt":"2021-03-10T23:44:39","slug":"%e9%9a%94%e5%a3%81%e8%80%81%e5%93%a5%e6%9c%89%e9%9c%80%e6%b1%82%ef%bc%8c%e6%8a%98%e8%85%be%e4%ba%86%e4%b8%80%e4%b8%8b%e5%8d%88%e6%8a%8a-systemd-resolved-%e9%87%8d%e6%96%b0%e6%8a%98%e8%85%be%e4%ba%86","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=384331","title":{"rendered":"\u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a systemd-resolved \u91cd\u65b0\u6298\u817e\u4e86\u4e00\u904d"},"content":{"rendered":"
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\u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a systemd-resolved \u91cd\u65b0\u6298\u817e\u4e86\u4e00\u904d <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : fiveelementgid <\/span> <\/i> 9<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u95ee\u9898\u9700\u6c42\u53c2\u8003\u8001\u54e5\u7684\u5e16\u5b50: https:\/\/v2ex.com\/t\/755417<\/p>\n

\u5148\u4e0a\u6210\u679c\u56fe \"\u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a @lizenghui \u9700\u6c42\u5728\u4e8e\u8d70\u81ea\u5efa DNS,\u4f46\u662f\u65e0\u6cd5\u7406\u89e3 NetworkManager \u4e0e systemd-resolved \u7684\u5173\u7cfb<\/p>\n

\u68b3\u7406\u4e86\u4e00\u4e0b(\u4e0d\u77e5\u9053\u5bf9\u4e0d\u5bf9\uff0c\u6709\u9519\u8bef\u8bf7\u8e39\u6211)\uff1aNetworkManager \u7ba1\u7406\u6574\u4e2a\u7f51\u7edc\uff0csystemd-resolved.service \u672c\u8d28\u4e0a\u53ea\u63d0\u4f9b\u4e86\u4e00\u4e2a DNS \u670d\u52a1\u5668(IP:127.0.0.53)\uff0cNetworkManager \u6240\u9700\u8981\u505a\u7684\u53ea\u662f\u628a DNS request \u4ea4\u4ed8\u7ed9 systemd-resolved.service \u7684 DNS \u670d\u52a1\u5668\u8fdb\u884c\u5904\u7406<\/p>\n

\u4f46\u662f\u5bf9\u4e8e\u7cfb\u7edf DNS \u5de5\u5177\u6765\u8bf4\uff0c\u8fd9\u4e2a DNS \u670d\u52a1\u5668(127.0.0.53)\u662f\u4e00\u4e2a\u9ed1\u7bb1\uff0c\u56e0\u6b64\u67e5\u8be2\u7684\u7ed3\u679c\u53ea\u80fd\u770b\u5230\u4e00\u4e2a DNS \u670d\u52a1\u5668\uff1a<\/p>\n

\"\u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a<\/p>\n

\u539f\u5e16\u91cc\u9762\u8001\u54e5\u91c7\u7528\u7ed5\u8fc7\u8fd9\u4e2a DNS \u670d\u52a1\u5668\uff0c\u76f4\u63a5\u7528 @\u6307\u5b9a\u5916\u90e8 DNS \u670d\u52a1\u5668\u4f1a\u8ba9\u6574\u4e2a service \u65e0\u7528<\/p>\n

\u56e0\u6b64\u6b63\u786e\u7684\u5904\u7406\u65b9\u6848\u5e94\u8be5\u662f\u8fdb\u53bb 127.0.0.53 \u5185\u90e8\u67e5\u770b\uff0c\u7528 resolvectl(\u5c31\u7b2c\u4e00\u4e2a\u56fe)<\/p>\n

\u4e0a\u9762\u7684 Global \u6bb5\u7684 DNS \u670d\u52a1\u5668\u5f88\u597d\u6539\uff0c\u76f4\u63a5\u6539 \/etc\/systemd\/resolved.conf<\/p>\n

\"\u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a<\/p>\n

\u4f46\u662f\u8fd9\u4e2a\u5b9e\u9645\u4e0a\u5e76\u6ca1\u6709\u7528\uff0c\u56e0\u4e3a .~ \u4ee3\u8868\u5339\u914d\u7684\u57df\u540d<\/p>\n

\"\u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u770b\u5230 Global \u548c wifi \u7684 wlp3s0 \u90fd\u6709.~<\/p>\n

\u610f\u601d\u662f\u4efb\u4f55\u57df\u540d\u90fd\u4f1a\u5f80\u8fd9\u4e24\u4e2a field \u7684\u6240\u6709 DNS \u670d\u52a1\u5668\u540c\u65f6\u53d1\u9001\u67e5\u8be2(\u8fd9\u5c31\u662f split DNS \u7684 concurrency \u4f18\u52bf\uff0c\u88ab\u5f15\u5165\u7684\u539f\u56e0)\uff0c\u56e0\u4e3a ISP \u63d0\u4f9b\u7684 10.0.0.1 \u80af\u5b9a\u6bd4 cf \u7684 1.1.1.1 \u5feb\uff0c\u6240\u4ee5\u80af\u5b9a\u4f1a\u7528 ISP \u7684\uff0c\u8fd9\u6837\u8bbe\u7f6e DNS \u4f1a\u5b9e\u6548<\/p>\n

\u4f46\u662f\u5b9e\u9645\u4e0a\u4f60\u53ef\u4ee5\u5b66\u6211\u4e4b\u524d\u914d\u7f6e\u7684(\u6211\u4e4b\u524d\u4e5f\u6ca1\u60f3\u660e\u767d\u600e\u4e48\u6d88\u9664 wlp3s0 \u7684)\uff0c\u4e00\u4e2a\u4e00\u4e2a\u624b\u52a8\u81ea\u5df1\u52a0\uff0c\u4f8b\u5982 google.com \uff0c\u7528 wireshark \u6293\u5305\u53ef\u4ee5\u8bc1 <\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (12<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : fiveelementgid <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @lizenghui \u4e3a\u5565 @\u4e0d\u5230\u4eba <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lizenghui <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @fiveelementgid \u8ba4\u771f\u62dc\u8bfb\u4e86\u60a8\u7684\u6587\u7ae0\uff0c\u771f\u7684\u975e\u5e38\u611f\u8c22\uff0c\u767e\u5fd9\u4e4b\u4e2d\u8fd8\u5728\u7814\u7a76\u8fd9\u4e2a\u95ee\u9898\u3002
    \u5176\u5b9e\u6211\u4e4b\u524d\u4e5f\u5c1d\u8bd5\u4e86 \/etc\/systemd\/resolved.conf \u6539\u8fd9\u4e2a \u4f46\u662f\u786e\u5b9e\u50cf\u60a8\u6240\u8bf4\u4e0d\u53ef\u80fd\u6bcf\u4e2a\u57df\u540d\u90fd\u52a0\u4e00\u904d\uff1b<\/p>\n

    \u540e\u9762\u8fd9\u79cd \u6539 networkmanager \u5bf9\u5e94\u8fde\u63a5\u914d\u7f6e\u8fd9\u79cd\u4e5f\u8bd5\u4e86\uff0c\u5728\u63d2\u6709\u7ebf\u7f51\u662f OK \u7684\u3002\u62e8\u4e86\u7f51\u7ebf \u4f7f\u7528 wifi \u5c31\u4f1a\u5bfc\u81f4\u65e0\u6cd5\u4e0a\u7f51\u3002\u56e0\u4e3a\u81ea\u5b9a\u4e49\u7684 DNS\uff1a192.168.1.1 \u65e0\u6cd5\u8fde\u63a5\uff0c\u56e0\u4e3a\u6211\u76ee\u524d\u7684\u6709\u7ebf\u7f51\u548c wifi \u662f\u4e24\u4e2a\u5b8c\u5168\u72ec\u7acb\u7684\u7f51\u7edc\u3002\u3002\u3002\uff08\u4e0d\u55b7\u6211\u554a\uff0c\u5b9e\u9645\u60c5\u51b5\uff09<\/p>\n

    \u6211\u4e0b\u5348\u5199\u4e86\u4e00\u4e2a\u4e34\u65f6\u811a\u672c\u6765\u89e3\u51b3\uff1a
    1 \u3001\u811a\u672c\u76d1\u6d4b\u6709\u7ebf\u7f51\u72b6\u6001
    2 \u3001\u5982\u679c\u662f\u6709\u7ebf\u7f51\u8fde\u63a5\u72b6\u6001\uff0c\u7528 iptables \u5c06\u672c\u673a\u6240\u6709\u8bbf\u95ee 53 \u7aef\u53e3\u7684 udp \u8fde\u63a5\u91cd\u5b9a\u5411\u5230 192.168.1.1
    3 \u3001\u5982\u679c\u662f\u6709\u7ebf\u7f51\u65ad\u5f00\u7684\u72b6\u6001\uff0c\u5c06 iptables \u91cd\u5b9a\u5411\u90e8\u5206\u53bb\u6389<\/p>\n

    \u6682\u65f6\u80fd\u7528\uff0c\u611f\u89c9\u5f88\u4e0d\u4f18\u96c5\u3002\u3002\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lizenghui <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @fiveelementgid \u54b1\u53ef\u4ee5\u52a0\u4e2a\u7535\u62a5\uff0c\u4ee5\u540e\u65b9\u4fbf\u4ea4\u6d41\uff0c\u6709\u70b9\u627e\u5230\u4f19\u4f34\u7684\u611f\u89c9\uff0c\u8eab\u8fb9\u8fd8\u771f\u6ca1\u4eba\u80fd\u804a\u8fd9\u4e9b\u5947\u8469\u7684\u7f51\u7edc\u95ee\u9898\u3002
    \u6211\u7684\u7535\u62a5\u540c\u540d \uff20 lizenghui <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : fiveelementgid <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u201c\u56e0\u4e3a\u6211\u76ee\u524d\u7684\u6709\u7ebf\u7f51\u548c wifi \u662f\u4e24\u4e2a\u5b8c\u5168\u72ec\u7acb\u7684\u7f51\u7edc\u201d
    \u90a3\u6837\u7684\u8bdd\u65b9\u6848\u786e\u5b9e\u4e0d\u592a\u884c\uff0c\u90a3\u5c31\u53ea\u80fd\u5199\u811a\u672c\u4e86
    \u5fd9\u5012\u662f\u4e0d\u5fd9\uff0c\u5927\u5b66\u672c\u79d1\u5728\u8bfb\uff0c\u51c6\u5907\u56de\u5b66\u6821\u4e86\uff0c\u5931\u4e1a\u4eba\u5458\u627e\u5b9e\u4e60\u4e2d
    \u8fd9\u4e9b\u7f51\u7edc\u95ee\u9898\u7b97\u662f\u5f88\u51b7\u95e8\u7684\u4e86\uff0c\u4e0d\u8fc7\u6211\u4e5f\u4e0d\u662f\u4e3b\u8981\u505a\u8fd9\u4e2a\u7684
    \u7535\u62a5\u597d\u53cb+1 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : yanqiyu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6709\u4e00\u70b9\u60f3\u8981\u63d0\u5230\u7684\uff0c\u5176\u5b9e systemd-resolved \u63d0\u4f9b\u7684 127.0.0.53 \u53ea\u662f\u4e00\u4e2a failback\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u89e3\u6790\u4f1a\u901a\u8fc7 glibc \u7684 nss \u6269\u5c55\u501f\u52a9 dbus \u5b8c\u6210\u89e3\u6790\u3002\u90a3\u4e2a 127.0.0.53 \u4e00\u822c\u662f\u7ed9 golang \u7a0b\u5e8f\u90a3\u4e9b nss \u7ba1\u4e0d\u5230\u7684\u7a0b\u5e8f\u505a\u89e3\u6790\u7684\u3002\u4e0d\u8fc7\u5728 Ubuntu \u4e0a\u90a3\u4e2a nss \u6a21\u5757\u9ed8\u8ba4\u6ca1\u5f00\uff0c\u4e8e\u662f\u4fee\u6539 resolved.conf \u53ef\u80fd\u6709\u6548\u679c\uff0c\u5728 Fedora \u4e0a\u53ef\u80fd\u5bf9\u4e8e\u5927\u90e8\u5206\u7a0b\u5e8f\u5c31\u4f1a\u4e0d\u597d\u4f7f\u4e86\u3002<\/p>\n

    systemd-resolved \u83b7\u5f97\u4e0a\u6e38 DNS \u914d\u7f6e\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4f1a\u4ece network manager\uff0c\u6bd4\u5982 systemd-networkd \u6216\u8005 NetworkManager \u53d6\u5f97\u3002\u4f46\u662f\u4e5f\u53ef\u4ee5\u624b\u52a8\u914d\u7f6e\uff0c\u786e\u5b9e\u901a\u8fc7 network manager \u5c42\u9762\u914d\u7f6e\u66f4\u53ef\u9760<\/p>\n

    \u81f3\u4e8e #2 \u63d0\u5230\u7684\uff0c\u8981\u4e0d\u8bd5\u8bd5 FallbackDNS \u914d\u7f6e\uff0c\u6211\u5efa\u8bae\u7684\u914d\u7f6e\u662f
    1. \u6709\u7ebf\u7f51\u901a\u8fc7 NM \u8bbe\u7f6e DNS
    2. \u65e0\u7ebf\u7f51\u901a\u8fc7 NM \u7981\u7528 DNS
    3. \u8bbe\u7f6e FallbackDNS\uff0c\u5728\u6709\u7ebf\u7f51\u65ad\u5f00\u7684\u65f6\u5019 resolved \u6ca1\u6709 DNS \u914d\u7f6e\u5c31\u4f1a\u4f7f\u7528 FallbackDNS <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : fiveelementgid <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @yanqiyu \u4e0d\u7528 Ubuntu \u597d\u591a\u5e74\uff0csystemd-resolved 127.0.0.53 \u91cc\u9762\u7684 DNS \u670d\u52a1\u5668\u7684 Global \u7684\u4e5f\u6709 fallback \u5907\u7528 DNS \u670d\u52a1\u5668\u3002Fedora \u5e73\u53f0\u7528\u7684 nss-resolv \u66ff\u6362\u4e86 nss-dns
    https:\/\/fedoraproject.org\/wiki\/Changes\/systemd-resolved#Summary<\/p>\n

    >Ubuntu does not use nss-resolve. Instead, Ubuntu uses the traditional nss-dns provided by glibc upstream, so glibc on Ubuntu continues to read \/etc\/resolv.conf, as is traditional.<\/p>\n

    \u786e\u5b9e Ubuntu \u8fd8\u53ef\u4ee5\u8bfb resolv.conf \u6709\u6548\u679c\uff0cNetworkManager \u5c31\u662f\u4e0a\u6e38\u83b7\u53d6\uff0c\u4e0d\u8fc7 systemd-networkd \u73b0\u5728\u57fa\u672c\u90fd\u662f\u9ed8\u8ba4\u5173\u95ed\u4e86\u65e0\u6cd5\u4f7f\u7528\u3002\u4f60\u548c\u4e0a\u7684\u8001\u54e5\u8bf4\u7684\u505a\u6cd5\u6211\u60f3\u4e86\u4e00\u4e0b\uff0c\u662f\u53ef\u884c\u7684\uff0c\u4f46\u662f\u662f\u5e94\u8be5\u8981\u4fee\u6539 systemd-resolved.service \u7684\u8fd9\u4e2a\u6587\u4ef6<\/p>\n

    `\/etc\/systemd\/resolved.conf` <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : jim9606 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    systemd-resolved \u7684\u4f5c\u7528\u662f\u66ff\u6362\u6389 glibc nss\uff0c\u524d\u8005\u652f\u6301\u4e00\u4e9b\u65b0\u7279\u6027\uff0c\u4f8b\u5982 DoT\uff0c\u540c\u65f6\u524d\u8005\u96c6\u6210 LLMNR \u3001DNSSEC \u3001mDNS \u7b49\u540e\u8005\u9700\u8981\u7528\u63d2\u4ef6\u5b9e\u73b0\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528 CLI \u63d0\u4f9b API \u98ce\u683c\u67e5\u8be2\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7 stub resolver 127.0.0.1:53 \u652f\u6301\u3002<\/p>\n

    NetworkManager \u672c\u804c\u662f\u7f51\u7edc\u914d\u7f6e DHCP \u5ba2\u6237\u7aef\u3001Wifi \u52a0\u5bc6\u3001\u89e3\u6790\u670d\u52a1\u5747\u4f9d\u8d56\u5916\u90e8\u7a0b\u5e8f\uff0c\u529f\u80fd\u5bf9\u6807\u7684\u662f systemd-networkd,\u524d\u8005\u5bf9\u65e0\u7ebf\u7f51\u7edc\u652f\u6301\u66f4\u5b8c\u5584\uff0c\u540e\u8005\u96c6\u6210 DHCP \u5ba2\u6237\u7aef\uff0c\u652f\u6301\u901a\u8fc7 MAC \u548c\u9a71\u52a8\u540d\u5339\u914d\u7f51\u5361\uff0c\u652f\u6301 bond \u3001bridge \u3001\u9759\u6001\u8def\u7531\u7b49\u914d\u7f6e\uff0c\u9002\u5408\u670d\u52a1\u5668\u4f7f\u7528\u3002\u76ee\u524d Ubuntu Desktop \u9ed8\u8ba4\u524d\u8005\uff0cServer \u9ed8\u8ba4\u540e\u8005\u3002<\/p>\n

    networkd \u7684\u914d\u7f6e\u662f \/etc\/systemd\/network\/*.network \u53ca \/etc\/systemd\/networkd.conf\uff0cCLI \u4e3a networkctl \u3002<\/p>\n

    resolved \u7684\u914d\u7f6e\u662f \/etc\/systemd\/resolved.conf \u53ca networkd \u914d\u7f6e\u6587\u4ef6\u5185\u7684 [DNS]\u5c0f\u8282\uff0cCLI \u4e3a resolvectl \u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : fiveelementgid <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @jim9606 \u6211\u5728\u4e0a\u4e00\u8bf4\u4e86….systemd-networkd \u5728 Fedora \u9ed8\u8ba4\u662f\u5173\u95ed\u7684<\/p>\n

    “`
    [[email protected] systemd-resolved]$ sudo systemctl status systemd-networkd
    \u25cf systemd-networkd.service – Network Service
    Loaded: loaded (\/usr\/lib\/systemd\/system\/systemd-networkd.service; disabled; vendor preset: disabled)
    Active: inactive (dead)
    Docs: man:systemd-networkd.service(8)
    “` <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : hanguofu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u987a\u4fbf\u95ee\u95ee \uff1a \u600e\u6837\u624d\u80fd\u5728\u4e0d\u4fee\u6539\u8def\u7531\u5668\u7684\u8bbe\u7f6e\u7684\u524d\u63d0\u4e0b\uff0c \u5728\u5c40\u57df\u7f51\u5185\u8f93\u5165\u81ea\u5b9a\u4e49\u7684\u57df\u540d \u5c31\u53ef\u4ee5\u8bbf\u95ee\u81ea\u5df1\u5728 \u5c40\u57df\u7f51\u5185\u7684\u8bbe\u5907 \uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : defunct9 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @hanguofu dnsmasq \u52ab\u6301\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lizenghui <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @yanqiyu
    \u65b9\u6848\u786e\u5b9e\u53ef\u884c\uff01 V2EX \u679c\u7136\u4e07\u80fd\uff01<\/p>\n

    @jim9606
    \u591a\u8c22\uff0c\u5b66\u5230\u4e86\u3002<\/p>\n

    @hanguofu
    \u50cf\u6211\u4e00\u6837\u81ea\u5efa\u4e00\u4e2a DNS <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : fiveelementgid <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @hanguofu \u4e24\u4e2a\u65b9\u6848\uff1a
    1.\u6539 hosts \u6587\u4ef6\uff0chard code\uff0c\u4e0d\u8fc7\u9700\u8981\u5c40\u57df\u7f51\u5185\u7684\u8bbe\u5907\u7684 ip \u56fa\u5b9a
    2.\u5c40\u57df\u7f51\u5185\u8bbe\u5907 ip \u4e0d\u56fa\u5b9a\u7684\u8bdd\uff0c\u53ef\u80fd\u9700\u8981 DNS \u3002
    \u5176\u4ed6\u66f4\u591a\u65b9\u6848\u4f60\u53ef\u4ee5\u8003\u8651\u4ece\u66f4\u4e0b\u4e00\u5c42 arp \u5c42\u7ea7\u76f4\u63a5\u8fdb\u884c Mac \u7ed1\u5b9a(\u8bdd\u8bf4\u8def\u7531\u5668\u53ef\u4ee5\u6839\u636e\u8bbe\u5907 Mac \u503c\u76f4\u63a5\u7ed1\u5b9a\u56fa\u5b9a ip \u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    \u9694\u58c1\u8001\u54e5\u6709\u9700\u6c42\uff0c\u6298\u817e\u4e86\u4e00\u4e0b\u5348\u628a s…<\/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\/384331"}],"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=384331"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/384331\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=384331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=384331"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=384331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}