{"id":9198,"date":"2024-03-07T10:05:48","date_gmt":"2024-03-07T02:05:48","guid":{"rendered":"\/?p=9198"},"modified":"2024-03-07T10:05:48","modified_gmt":"2024-03-07T02:05:48","slug":"host%e5%92%8cdns","status":"publish","type":"post","link":"\/?p=9198","title":{"rendered":"host\u548cdns"},"content":{"rendered":"

1.\u95ee\u9898\u63cf\u8ff0<\/h2>\n

hosts\u6587\u4ef6\u4e2d\u6ca1\u6709\u5173\u4e8e\u8be5\u7f51\u7edc\u522b\u540d\u7684\u4fe1\u606f\uff0c\u4f46\u662f\u80fd\u591fping\u901a\uff0c\u4e3a\u4ec0\u4e48\uff1f<\/p>\n

(base) [rhino@ai185 ~]$ cat \/etc\/hosts\n127.0.0.1 localhost\n\n(base) [rhino@ai185 ~]$ ping ai185\nPING ai185 (10.45.151.185) 56(84) bytes of data.\n64 bytes from ai185 (10.45.151.185): icmp_seq=1 ttl=64 time=0.014 ms\n64 bytes from ai185 (10.45.151.185): icmp_seq=2 ttl=64 time=0.014 ms\n64 bytes from ai185 (10.45.151.185): icmp_seq=3 ttl=64 time=0.015 ms\n64 bytes from ai185 (10.45.151.185): icmp_seq=4 ttl=64 time=0.015 ms\n64 bytes from ai185 (10.45.151.185): icmp_seq=5 ttl=64 time=0.016 ms\n64 bytes from ai185 (10.45.151.185): icmp_seq=6 ttl=64 time=0.014 ms<\/code><\/pre>\n
2.\u76f8\u5173\u89e3\u91ca<\/h2>\n
\u6839\u636e\u60a8\u63d0\u4f9b\u7684\u4fe1\u606f\uff0c\u60a8\u7684\u8ba1\u7b97\u673a\u6b63\u5728\u5c1d\u8bd5\u901a\u8fc7IP\u5730\u574010.45.151.185\uff08\u5373ai185\uff09\u8fdb\u884cping\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5bf9\u60a8\u63d0\u4f9b\u7684\u4fe1\u606f\u7684\u89e3\u6790\uff1a<\/p>\n
    \n
  • cat \/etc\/hosts<\/code>\u547d\u4ee4\u7528\u4e8e\u663e\u793a\u4e3b\u673a\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u5728\u60a8\u7684\u8ba1\u7b97\u673a\u4e0a\u6267\u884c\u6b64\u547d\u4ee4\u5c06\u663e\u793a\u4e3b\u673a\u6587\u4ef6\u4e2d\u7684\u6761\u76ee\u3002<\/li>\n
  • ping ai185<\/code>\u547d\u4ee4\u7528\u4e8e\u6d4b\u8bd5\u4e0e\u540d\u4e3a"ai185"\u7684\u4e3b\u673a\u4e4b\u95f4\u7684\u7f51\u7edc\u8fde\u63a5\u3002\u5b83\u53d1\u9001ICMP\u56de\u663e\u8bf7\u6c42\u5e76\u7b49\u5f85\u54cd\u5e94\u3002<\/li>\n<\/ul>\n
    \u6839\u636e\u60a8\u63d0\u4f9b\u7684\u4fe1\u606f\uff0c\u60a8\u7684\u8ba1\u7b97\u673a\u6210\u529f\u63a5\u6536\u5230\u4e86\u6765\u81eaIP\u5730\u574010.45.151.185\u7684\u54cd\u5e94\u3002\u8fd9\u8868\u660e\u60a8\u7684\u8ba1\u7b97\u673a\u53ef\u4ee5\u4e0e\u8be5\u4e3b\u673a\u5efa\u7acb\u7f51\u7edc\u8fde\u63a5\u3002<\/p>\n
    ping\u547d\u4ee4\u7684\u4f5c\u7528<\/h3>\n
    Ping\u547d\u4ee4\u662f\u4e00\u79cd\u7528\u4e8e\u6d4b\u8bd5\u7f51\u7edc\u8fde\u63a5\u6027\u7684\u5de5\u5177\uff0c\u5b83\u5c5e\u4e8eTCP\/IP\u534f\u8bae\u7684\u4e00\u90e8\u5206\u3002\u5177\u4f53\u6765\u8bf4\uff0cPing\u547d\u4ee4\u7684\u4f5c\u7528\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n
      \n
    1. \u9a8c\u8bc1\u7f51\u7edc\u8fde\u63a5\u6027<\/strong>\uff1aPing\u547d\u4ee4\u53ef\u4ee5\u7528\u6765\u6d4b\u8bd5\u8ba1\u7b97\u673a\u4e4b\u95f4\u7f51\u7edc\u7684\u8fde\u901a\u6027\u3002\u5f53\u53d1\u9001Ping\u547d\u4ee4\u65f6\uff0c\u5b83\u4f1a\u5411\u76ee\u6807\u4e3b\u673a\u53d1\u9001\u4e00\u4e2aICMP\uff08Internet Control Message Protocol\uff0cInternet\u63a7\u5236\u6d88\u606f\u534f\u8bae\uff09\u56de\u663e\u8bf7\u6c42\u6570\u636e\u5305\uff0c\u5e76\u7b49\u5f85\u76ee\u6807\u4e3b\u673a\u8fd4\u56de\u56de\u663e\u5e94\u7b54\u6570\u636e\u5305\u3002\u5982\u679c\u6210\u529f\u63a5\u6536\u5230\u5e94\u7b54\u6570\u636e\u5305\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u8bf4\u660e\u6e90\u4e3b\u673a\u4e0e\u76ee\u6807\u4e3b\u673a\u4e4b\u95f4\u5b58\u5728\u4e00\u6761\u8fde\u901a\u7684\u8def\u5f84\u3002<\/li>\n
    2. \u8bc4\u4f30\u7f51\u7edc\u6027\u80fd<\/strong>\uff1aPing\u547d\u4ee4\u8fd8\u53ef\u4ee5\u7528\u6765\u8bc4\u4f30\u7f51\u7edc\u7684\u6027\u80fd\u3002\u901a\u8fc7Ping\u547d\u4ee4\uff0c\u53ef\u4ee5\u6d4b\u91cf\u6570\u636e\u5305\u4ece\u6e90\u4e3b\u673a\u5230\u76ee\u6807\u4e3b\u673a\u6240\u9700\u7684\u65f6\u95f4\uff08\u5373\u5ef6\u8fdf\uff09\uff0c\u4ee5\u53ca\u6570\u636e\u5305\u4e22\u5931\u7684\u60c5\u51b5\u3002\u8fd9\u4e9b\u4fe1\u606f\u5bf9\u4e8e\u8bc4\u4f30\u7f51\u7edc\u8d28\u91cf\u3001\u8bca\u65ad\u7f51\u7edc\u95ee\u9898\u4ee5\u53ca\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u975e\u5e38\u6709\u7528\u3002<\/li>\n
    3. \u8c03\u8bd5\u7f51\u7edc\u95ee\u9898<\/strong>\uff1a\u5f53\u7f51\u7edc\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528Ping\u547d\u4ee4\u6765\u9884\u6d4b\u6545\u969c\u548c\u786e\u5b9a\u6545\u969c\u5730\u70b9\u3002\u901a\u8fc7Ping\u547d\u4ee4\uff0c\u53ef\u4ee5\u786e\u5b9a\u54ea\u4e9b\u4e3b\u673a\u53ef\u4ee5\u6210\u529f\u4ea4\u6362\u6570\u636e\u5305\uff0c\u54ea\u4e9b\u4e3b\u673a\u65e0\u6cd5\u8fde\u63a5\u3002\u8fd9\u6709\u52a9\u4e8e\u7f29\u5c0f\u95ee\u9898\u7684\u8303\u56f4\uff0c\u4ece\u800c\u66f4\u5feb\u5730\u627e\u5230\u5e76\u89e3\u51b3\u95ee\u9898\u3002<\/li>\n<\/ol>\n
      \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u867d\u7136Ping\u547d\u4ee4\u7684\u6210\u529f\u5e76\u4e0d\u610f\u5473\u7740TCP\/IP\u914d\u7f6e\u4e00\u5b9a\u6b63\u786e\uff0c\u4f46\u5b83\u786e\u5b9e\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u8d77\u70b9\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u521d\u6b65\u5224\u65ad\u7f51\u7edc\u8fde\u63a5\u7684\u72b6\u6001\u548c\u6027\u80fd\u3002\u6b64\u5916\uff0cPing\u547d\u4ee4\u4e0d\u4ec5\u53ef\u4ee5\u5728Windows\u3001Unix\u548cLinux\u64cd\u4f5c\u7cfb\u7edf\u4e0b\u4f7f\u7528\uff0c\u800c\u4e14\u5728\u5927\u591a\u6570\u7f51\u7edc\u8bbe\u5907\uff08\u5982\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u7b49\uff09\u4e0a\u4e5f\u652f\u6301\u8be5\u547d\u4ee4\u3002<\/p>\n
      ping\u547d\u4ee4\u7684\u8fc7\u7a0b\u548c\u539f\u7406\u4e3b\u8981\u6d89\u53ca\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a<\/strong><\/p>\n
        \n
      1. \u539f\u7406<\/strong>\uff1aping\u547d\u4ee4\u57fa\u4e8eICMP\uff08Internet Control Message Protocol\uff0cInternet\u63a7\u5236\u6d88\u606f\u534f\u8bae\uff09\u534f\u8bae\u5de5\u4f5c\u3002\u5b83\u5411\u76ee\u6807\u4e3b\u673a\u53d1\u9001\u4e00\u4e2aICMP\u56de\u663e\u8bf7\u6c42\uff08Echo Request\uff09\u6570\u636e\u5305\uff0c\u5e76\u7b49\u5f85\u76ee\u6807\u4e3b\u673a\u8fd4\u56de\u56de\u663e\u5e94\u7b54\uff08Echo Reply\uff09\u6570\u636e\u5305\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u7c7b\u4f3c\u4e8e\u6211\u4eec\u5728\u5c71\u8c37\u4e2d\u547c\u558a\uff0c\u7b49\u5f85\u56de\u58f0\u7684\u8fd4\u56de\uff0c\u4ece\u800c\u5224\u65ad\u5c71\u8c37\u4e2d\u662f\u5426\u6709\u58f0\u97f3\u4f20\u64ad\u7684\u8def\u5f84\u3002<\/li>\n
      2. \u8fc7\u7a0b<\/strong>\uff1a\n
          \n
        • \u53d1\u9001\u8bf7\u6c42<\/strong>\uff1a\u5f53\u7528\u6237\u5728Linux\u7ec8\u7aef\u4e2d\u8f93\u5165ping\u547d\u4ee4\u5e76\u6307\u5b9a\u76ee\u6807\u4e3b\u673a\u65f6\uff0cping\u7a0b\u5e8f\u4f1a\u6784\u9020\u4e00\u4e2aICMP\u56de\u663e\u8bf7\u6c42\u6570\u636e\u5305\uff0c\u5e76\u5c06\u5176\u53d1\u9001\u7ed9\u76ee\u6807\u4e3b\u673a\u3002<\/li>\n
        • \u7b49\u5f85\u5e94\u7b54<\/strong>\uff1a\u76ee\u6807\u4e3b\u673a\u63a5\u6536\u5230\u56de\u663e\u8bf7\u6c42\u6570\u636e\u5305\u540e\uff0c\u4f1a\u8fd4\u56de\u4e00\u4e2a\u56de\u663e\u5e94\u7b54\u6570\u636e\u5305\u7ed9\u6e90\u4e3b\u673a\u3002\u5728\u7b49\u5f85\u5e94\u7b54\u7684\u8fc7\u7a0b\u4e2d\uff0cping\u547d\u4ee4\u4f1a\u8bb0\u5f55\u53d1\u9001\u8bf7\u6c42\u7684\u65f6\u95f4\uff0c\u5e76\u5728\u63a5\u6536\u5230\u5e94\u7b54\u65f6\u8ba1\u7b97\u5f80\u8fd4\u65f6\u95f4\uff08RTT\uff0cRound-Trip Time\uff09\u3002<\/li>\n
        • \u663e\u793a\u7ed3\u679c<\/strong>\uff1aping\u547d\u4ee4\u4f1a\u4e0d\u65ad\u53d1\u9001\u56de\u663e\u8bf7\u6c42\u6570\u636e\u5305\uff0c\u5e76\u663e\u793a\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u5f80\u8fd4\u65f6\u95f4\u3002\u540c\u65f6\uff0c\u5b83\u8fd8\u4f1a\u7edf\u8ba1\u6570\u636e\u5305\u4e22\u5931\u7684\u60c5\u51b5\uff0c\u5373\u5728\u4e00\u5b9a\u65f6\u95f4\u5185\u53d1\u9001\u7684\u8bf7\u6c42\u6570\u636e\u5305\u4e2d\u672a\u80fd\u6536\u5230\u5e94\u7b54\u7684\u6bd4\u4f8b\u3002<\/li>\n
        • \u7ed3\u675f\u547d\u4ee4<\/strong>\uff1a\u7528\u6237\u53ef\u4ee5\u6309\u4e0bCtrl+C\u7ec4\u5408\u952e\u6765\u4e2d\u65adping\u547d\u4ee4\u7684\u6267\u884c\uff0c\u6b64\u65f6ping\u547d\u4ee4\u4f1a\u663e\u793a\u4e00\u4e2a\u603b\u7ed3\u62a5\u544a\uff0c\u5305\u62ec\u53d1\u9001\u7684\u8bf7\u6c42\u6570\u636e\u5305\u6570\u91cf\u3001\u63a5\u6536\u5230\u7684\u5e94\u7b54\u6570\u636e\u5305\u6570\u91cf\u3001\u4e22\u5931\u7684\u6570\u636e\u5305\u6bd4\u4f8b\u4ee5\u53ca\u5e73\u5747\u5f80\u8fd4\u65f6\u95f4\u7b49\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
          \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cLinux\u7cfb\u7edf\u4e2d\u7684ping\u547d\u4ee4\u4e0eWindows\u7cfb\u7edf\u4e2d\u7684ping\u547d\u4ee4\u5728\u67d0\u4e9b\u65b9\u9762\u5b58\u5728\u5dee\u5f02\u3002\u4f8b\u5982\uff0c\u5728Linux\u7cfb\u7edf\u4e2d\uff0cping\u547d\u4ee4\u9ed8\u8ba4\u4f1a\u65e0\u9650\u6b21\u5730\u53d1\u9001\u56de\u663e\u8bf7\u6c42\u6570\u636e\u5305\uff0c\u76f4\u5230\u7528\u6237\u624b\u52a8\u4e2d\u65ad\uff1b\u800c\u5728Windows\u7cfb\u7edf\u4e2d\uff0cping\u547d\u4ee4\u9ed8\u8ba4\u53ea\u53d1\u90014\u4e2a\u8bf7\u6c42\u6570\u636e\u5305\u540e\u81ea\u52a8\u7ed3\u675f\u3002\u6b64\u5916\uff0cLinux\u7cfb\u7edf\u4e2d\u7684ping\u547d\u4ee4\u8fd8\u652f\u6301\u66f4\u591a\u7684\u9009\u9879\u548c\u53c2\u6570\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u7684\u6d4b\u8bd5\u9700\u6c42\u3002<\/p>\n
          \u8fde\u901a\u7684\u8fc7\u7a0b<\/h3>\n
          \u4e00\u822c\u6765\u8bf4\uff0c\u7f51\u7edc\u8fde\u63a5\u53ef\u4ee5\u5206\u4e3a\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n
            \n
          1. \u672c\u5730\u4e3b\u673a\u6587\u4ef6\uff08\/etc\/hosts\uff09\uff1a<\/strong> \u7cfb\u7edf\u9996\u5148\u4f1a\u68c0\u67e5\u672c\u5730\u4e3b\u673a\u6587\u4ef6\uff08\u5982\/etc\/hosts<\/code>\uff09\u4ee5\u67e5\u627e\u4e0e\u76ee\u6807\u4e3b\u673a\u540d\u76f8\u5173\u7684IP\u5730\u5740\u6620\u5c04\u3002\u8fd9\u662f\u4e00\u4e2a\u672c\u5730\u7684\u9759\u6001\u6620\u5c04\u3002<\/li>\n
          2. \u672c\u5730DNS\u89e3\u6790\u7f13\u5b58\uff1a<\/strong> \u5982\u679c\u5728\u672c\u5730\u4e3b\u673a\u6587\u4ef6\u4e2d\u6ca1\u6709\u627e\u5230\u76f8\u5173\u6620\u5c04\uff0c\u7cfb\u7edf\u4f1a\u68c0\u67e5\u672c\u5730DNS\u89e3\u6790\u7f13\u5b58\u3002\u5148\u524d\u6210\u529f\u89e3\u6790\u7684\u4e3b\u673a\u540d\u548cIP\u5730\u5740\u7684\u6620\u5c04\u4f1a\u88ab\u7f13\u5b58\u4e00\u6bb5\u65f6\u95f4\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n
          3. DNS\u89e3\u6790\u670d\u52a1\u5668\uff1a<\/strong> \u5982\u679c\u672c\u5730\u7f13\u5b58\u4e2d\u6ca1\u6709\u627e\u5230\u76f8\u5173\u4fe1\u606f\uff0c\u7cfb\u7edf\u5c06\u5411DNS\u89e3\u6790\u670d\u52a1\u5668\u53d1\u51fa\u8bf7\u6c42\u3002\u8fd9\u4e2a\u8bf7\u6c42\u4f1a\u5728\u672c\u5730DNS\u670d\u52a1\u5668\u6216\u8005\u5728\u60a8\u7684ISP\uff08\u4e92\u8054\u7f51\u670d\u52a1\u63d0\u4f9b\u5546\uff09\u7684DNS\u670d\u52a1\u5668\u7b49\u5916\u90e8DNS\u670d\u52a1\u5668\u4e2d\u8fdb\u884c\u3002\n
              \n
            • \u672c\u5730DNS\u670d\u52a1\u5668\uff1a<\/strong> \u60a8\u7684\u8ba1\u7b97\u673a\u901a\u5e38\u4f1a\u914d\u7f6e\u4e3a\u4f7f\u7528\u672c\u5730DNS\u670d\u52a1\u5668\u3002\u5982\u679c\u672c\u5730DNS\u670d\u52a1\u5668\u5177\u6709\u4e0e\u8bf7\u6c42\u4e3b\u673a\u540d\u76f8\u5173\u7684\u4fe1\u606f\uff0c\u5b83\u5c06\u63d0\u4f9b\u76f8\u5e94\u7684IP\u5730\u5740\u3002<\/li>\n
            • ISP DNS\u670d\u52a1\u5668\uff1a<\/strong> \u5982\u679c\u672c\u5730DNS\u670d\u52a1\u5668\u6ca1\u6709\u76f8\u5173\u4fe1\u606f\uff0c\u8bf7\u6c42\u5c06\u88ab\u8f6c\u53d1\u5230ISP\u7684DNS\u670d\u52a1\u5668\u3002\u540c\u6837\uff0c\u5982\u679cISP\u7684DNS\u670d\u52a1\u5668\u6709\u76f8\u5173\u4fe1\u606f\uff0c\u5b83\u5c06\u63d0\u4f9b\u76f8\u5e94\u7684IP\u5730\u5740\u3002<\/li>\n
            • \u6839DNS\u670d\u52a1\u5668\u548c\u9876\u7ea7\u57dfDNS\u670d\u52a1\u5668\uff1a<\/strong> \u5982\u679cISP\u7684DNS\u670d\u52a1\u5668\u4e5f\u6ca1\u6709\u76f8\u5173\u4fe1\u606f\uff0c\u5b83\u5c06\u5411\u6839DNS\u670d\u52a1\u5668\u548c\u9876\u7ea7\u57dfDNS\u670d\u52a1\u5668\u53d1\u51fa\u8fed\u4ee3\u67e5\u8be2\uff0c\u9010\u6b65\u5411\u4e0b\u67e5\u8be2\u76f4\u5230\u627e\u5230\u76ee\u6807\u4e3b\u673a\u7684IP\u5730\u5740\u3002\u8fd9\u662f\u4e00\u4e2a\u9012\u5f52\u7684\u8fc7\u7a0b\uff0c\u672c\u5730DNS\u670d\u52a1\u5668\u8d1f\u8d23\u5904\u7406\u8fd9\u4e9b\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
              \u603b\u4f53\u800c\u8a00\uff0c\u7f51\u7edc\u8fde\u63a5\u662f\u4e00\u4e2a\u52a8\u6001\u7684\u3001\u591a\u6b65\u9aa4\u7684\u8fc7\u7a0b\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u672c\u5730\u4e3b\u673a\u6587\u4ef6\u3001\u672c\u5730DNS\u89e3\u6790\u7f13\u5b58\u4ee5\u53ca\u5916\u90e8DNS\u89e3\u6790\u670d\u52a1\u5668\u3002\u8fd9\u786e\u4fdd\u4e86\u5728\u7f51\u7edc\u4e2d\u80fd\u591f\u6b63\u786e\u89e3\u6790\u4e3b\u673a\u540d\u5e76\u5efa\u7acb\u8fde\u63a5\u3002<\/p>\n
              \n
              ping<\/code> \u5de5\u5177\u901a\u5e38\u4f1a\u5c1d\u8bd5\u5224\u65ad\u540e\u9762\u7684\u5b57\u7b26\u4e32\u662f\u4e3b\u673a\u540d\u8fd8\u662fIP\u5730\u5740\u3002\u5728\u8bb8\u591a ping<\/code> \u5b9e\u73b0\u4e2d\uff0c\u5982\u679c\u63d0\u4f9b\u7684\u5b57\u7b26\u4e32\u5305\u542b\u70b9\u53f7\uff08.\uff09\u6216\u5192\u53f7\uff08:\uff09\uff0c\u5b83\u5c06\u88ab\u89e3\u91ca\u4e3aIPv4\u6216IPv6\u5730\u5740\u3002\u5426\u5219\uff0c\u5b83\u5c06\u88ab\u89c6\u4e3a\u4e3b\u673a\u540d\uff0c\u4f1a\u5c1d\u8bd5\u8fdb\u884cDNS\u89e3\u6790\u4ee5\u83b7\u53d6\u76f8\u5e94\u7684IP\u5730\u5740\u3002<\/p>\n
              \u4f8b\u5982\uff0c\u5728\u4ee5\u4e0b\u4e24\u79cd\u60c5\u51b5\u4e0b\uff1a<\/p>\n
              ping ai185<\/code><\/pre>\n
              ping 8.8.8.8<\/code><\/pre>\n
              \u7b2c\u4e00\u884c\u4e2d\uff0cai185<\/code> \u88ab\u89c6\u4e3a\u4e3b\u673a\u540d\uff0cping<\/code> \u4f1a\u5c1d\u8bd5\u8fdb\u884cDNS\u89e3\u6790\u3002\u7b2c\u4e8c\u884c\u4e2d\uff0c8.8.8.8<\/code> \u5305\u542b\u70b9\u53f7\uff0c\u56e0\u6b64\u88ab\u89e3\u91ca\u4e3aIPv4\u5730\u5740\uff0c\u4e0d\u4f1a\u8fdb\u884cDNS\u89e3\u6790\u3002<\/p>\n
              \u8bf7\u6ce8\u610f\uff0c\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u548c\u4e0d\u540c\u7248\u672c\u7684 ping<\/code> \u5b9e\u73b0\u53ef\u80fd\u4f1a\u6709\u4e00\u4e9b\u5dee\u5f02\uff0c\u56e0\u6b64\u5177\u4f53\u7684\u884c\u4e3a\u53ef\u80fd\u4f1a\u7565\u6709\u4e0d\u540c\u3002\u901a\u5e38\u6765\u8bf4\uff0cping<\/code> \u4f1a\u6839\u636e\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u5f62\u5f0f\u6765\u5224\u65ad\u662f\u4e3b\u673a\u540d\u8fd8\u662fIP\u5730\u5740\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u884c\u4e3a\u3002<\/p>\n
              3.\u7ed3\u8bba<\/h2>\n
              \u7834\u6848\u4e86\uff0c\u6211\u7684\u60c5\u5f62\u662f\u5728\u672c\u673aping ai185<\/code>\uff0c\u4f1a\u53bb\u8bc6\u522b\u81ea\u8eab\u7684hostname<\/code><\/p>\n
              \"image-20240305152720103\" <\/p>\n
              \u8981\u901a\u8fc7 ping <hostname><\/code> \u6210\u529f\uff0c\u901a\u5e38\u9700\u8981\u6ee1\u8db3\u4ee5\u4e0b\u51e0\u4e2a\u6761\u4ef6\uff1a<\/p>\n
                \n
              1. \u6b63\u786e\u7684\u4e3b\u673a\u540d\u89e3\u6790\uff1a<\/strong> \u60a8\u7684\u4e3b\u673a\u540d\u9700\u8981\u80fd\u591f\u6210\u529f\u89e3\u6790\u5230\u4e00\u4e2a\u6709\u6548\u7684IP\u5730\u5740\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u672c\u5730\u4e3b\u673a\u6587\u4ef6\uff08\u5982 \/etc\/hosts<\/code>\uff09\u3001\u672c\u5730DNS\u7f13\u5b58\u6216\u8005\u5916\u90e8DNS\u89e3\u6790\u670d\u52a1\u5668\u6765\u5b8c\u6210\u3002\u786e\u4fdd\u4e3b\u673a\u540d\u4e0e\u6b63\u786e\u7684IP\u5730\u5740\u76f8\u5173\u8054\u3002<\/li>\n
              2. \u7f51\u7edc\u8fde\u63a5\u6b63\u5e38\uff1a<\/strong> \u60a8\u7684\u8ba1\u7b97\u673a\u9700\u8981\u4e0e\u76ee\u6807\u4e3b\u673a\u4e4b\u95f4\u5efa\u7acb\u7f51\u7edc\u8fde\u63a5\u7684\u80fd\u529b\u3002\u786e\u4fdd\u7f51\u7edc\u8fde\u63a5\u662f\u6b63\u5e38\u7684\uff0c\u4e2d\u95f4\u6ca1\u6709\u963b\u788d\u901a\u4fe1\u7684\u9632\u706b\u5899\u6216\u7f51\u7edc\u9694\u79bb\u3002<\/li>\n
              3. \u76ee\u6807\u4e3b\u673a\u5728\u7ebf\uff1a<\/strong> \u8981\u6210\u529f ping<\/code> \u4e00\u4e2a\u4e3b\u673a\uff0c\u8be5\u4e3b\u673a\u5fc5\u987b\u5904\u4e8e\u8fd0\u884c\u72b6\u6001\u5e76\u5904\u4e8e\u5728\u7ebf\u72b6\u6001\u3002\u5982\u679c\u76ee\u6807\u4e3b\u673a\u5904\u4e8e\u5173\u673a\u72b6\u6001\u6216\u8005\u7f51\u7edc\u4e0d\u53ef\u8fbe\uff0cping<\/code> \u5c06\u5931\u8d25\u3002<\/li>\n
              4. \u4e3b\u673a\u540d\u6b63\u786e\u8bbe\u7f6e\uff1a<\/strong> \u5728\u60a8\u7684\u7f51\u7edc\u73af\u5883\u4e2d\uff0c\u4e3b\u673a\u540d\u5e94\u8be5\u6b63\u786e\u8bbe\u7f6e\uff0c\u4e0d\u4e0e\u5176\u4ed6\u8ba1\u7b97\u673a\u51b2\u7a81\uff0c\u5e76\u4e14\u5728\u4e3b\u673a\u6587\u4ef6\u6216DNS\u89e3\u6790\u670d\u52a1\u5668\u4e2d\u6709\u6b63\u786e\u7684\u6620\u5c04\u3002<\/li>\n<\/ol>\n
                \u4e3e\u4f8b\u6765\u8bf4\uff0c\u5982\u679c\u60a8\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
                ping examplehostname<\/code><\/pre>\n
                \u90a3\u4e48 examplehostname<\/code> \u5e94\u8be5\u5728\u672c\u5730\u4e3b\u673a\u6587\u4ef6\u6216\u8005DNS\u4e2d\u6709\u4e00\u4e2a\u6b63\u786e\u7684\u6620\u5c04\uff0c\u5e76\u4e14\u7f51\u7edc\u8fde\u63a5\u662f\u6b63\u5e38\u7684\uff0c\u76ee\u6807\u4e3b\u673a\u5728\u7ebf\u4e14\u53ef\u8fbe\u3002<\/p>\n
                \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd9\u4e9b\u6761\u4ef6\u7684\u6ee1\u8db3\u4e0e\u7f51\u7edc\u914d\u7f6e\u3001\u4e3b\u673a\u914d\u7f6e\u4ee5\u53ca\u7f51\u7edc\u73af\u5883\u6709\u5173\u3002\u5982\u679c ping<\/code> \u5931\u8d25\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u68c0\u67e5\u7f51\u7edc\u8bbe\u7f6e\u3001DNS\u914d\u7f6e\u4ee5\u53ca\u76ee\u6807\u4e3b\u673a\u7684\u72b6\u6001\u6765\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                1.\u95ee\u9898\u63cf\u8ff0 hosts\u6587\u4ef6\u4e2d\u6ca1\u6709\u5173\u4e8e\u8be5\u7f51\u7edc\u522b\u540d\u7684\u4fe1\u606f\uff0c\u4f46\u662f\u80fd\u591fping\u901a\uff0c\u4e3a\u4ec0\u4e48\uff1f (base) [rhino@ai185 ~]$ c   \u2026 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[190],"tags":[245,244],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9198"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9198"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9198\/revisions"}],"predecessor-version":[{"id":9199,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9198\/revisions\/9199"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9198"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}