{"id":178518,"date":"2024-11-08T18:38:19","date_gmt":"2024-11-08T10:38:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178518\/"},"modified":"2024-11-08T18:38:20","modified_gmt":"2024-11-08T10:38:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42005-cr_unknown_host-%e6%9c%aa%e7%9f%a5%e7%9a%84mysql%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%bb%e6%9c%bas%ef%bc%88d%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178518\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42005 &#8211; (CR_UNKNOWN_HOST) \u672a\u77e5\u7684MySQL\u670d\u52a1\u5668\u4e3b\u673a&#8217;%s&#8217;\uff08%d\uff09"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42005-cr_unknown_host-%e6%9c%aa%e7%9f%a5%e7%9a%84mysql%e4%bc%ba%e6%9c%8d%e5%99%a8%e4%b8%bb%e6%a9%9fs%ef%bc%88d%ef%bc%89-aLvgtAlwrs\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42005 &#8211; (CR_UNKNOWN_HOST) \u672a\u77e5\u7684MySQL\u4f3a\u670d\u5668\u4e3b\u6a5f&#8217;%s&#8217;\uff08%d\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u932f\u8aa42005 &#8211; (CR_UNKNOWN_HOST) \u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u8868\u793a\u7121\u6cd5\u9023\u63a5\u5230\u6307\u5b9a\u7684MySQL\u4f3a\u670d\u5668\u4e3b\u6a5f\u3002\u9019\u500b\u932f\u8aa4\u53ef\u80fd\u7531\u591a\u7a2e\u539f\u56e0\u5f15\u8d77\uff0c\u5305\u62ec\u7db2\u7d61\u554f\u984c\u3001\u914d\u7f6e\u932f\u8aa4\u6216DNS\u89e3\u6790\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a42005%e7%9a%84%e6%88%90%e5%9b%a0-aLvgtAlwrs\">\u932f\u8aa42005\u7684\u6210\u56e0<\/h2>\n<p>\u7576\u4f60\u5617\u8a66\u9023\u63a5\u5230MySQL\u4f3a\u670d\u5668\u6642\uff0c\u5982\u679c\u51fa\u73fe\u932f\u8aa42005\uff0c\u9019\u901a\u5e38\u610f\u5473\u8457\u5ba2\u6236\u7aef\u7121\u6cd5\u89e3\u6790\u4f3a\u670d\u5668\u7684\u4e3b\u6a5f\u540d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u7684\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u4e3b\u6a5f\u540d\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u5728\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u8f38\u5165\u4e86\u932f\u8aa4\u7684\u4e3b\u6a5f\u540d\uff0cMySQL\u5c07\u7121\u6cd5\u627e\u5230\u8a72\u4f3a\u670d\u5668\u3002<\/li>\n<li><strong>DNS\u554f\u984c\uff1a<\/strong>\u5982\u679cDNS\u670d\u52d9\u5668\u7121\u6cd5\u89e3\u6790\u4e3b\u6a5f\u540d\uff0c\u5247\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7db2\u7d61\u9023\u63a5\u554f\u984c\uff1a<\/strong>\u5982\u679c\u5ba2\u6236\u7aef\u548c\u4f3a\u670d\u5668\u4e4b\u9593\u7684\u7db2\u7d61\u9023\u63a5\u4e0d\u7a69\u5b9a\u6216\u4e2d\u65b7\uff0c\u4e5f\u6703\u5c0e\u81f4\u7121\u6cd5\u9023\u63a5\u3002<\/li>\n<li><strong>\u9632\u706b\u7246\u8a2d\u7f6e\uff1a<\/strong>\u9632\u706b\u7246\u53ef\u80fd\u6703\u963b\u6b62\u5c0dMySQL\u4f3a\u670d\u5668\u7684\u8a2a\u554f\uff0c\u7279\u5225\u662f\u5982\u679c\u4f3a\u670d\u5668\u5728\u96f2\u7aef\u6216VPS\u4e0a\u904b\u884c\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-aLvgtAlwrs\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u8981\u4fee\u5fa9MySQL\u932f\u8aa42005\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u6392\u67e5\u548c\u4fee\u5fa9\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e4%b8%bb%e6%a9%9f%e5%90%8d-aLvgtAlwrs\">1. \u6aa2\u67e5\u4e3b\u6a5f\u540d<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u4f60\u5728\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u4f7f\u7528\u7684\u4e3b\u6a5f\u540d\u662f\u6b63\u78ba\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6e2c\u8a66\u4e3b\u6a5f\u540d\u662f\u5426\u53ef\u89e3\u6790\uff1a<\/p>\n<pre><code>ping your_mysql_host<\/code><\/pre>\n<p>\u5982\u679cping\u547d\u4ee4\u7121\u6cd5\u627e\u5230\u4e3b\u6a5f\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u4e3b\u6a5f\u540d\u662f\u5426\u6b63\u78ba\u3002<\/p>\n<h3 id=\"2-%e6%aa%a2%e6%9f%a5dns%e8%a8%ad%e7%bd%ae-aLvgtAlwrs\">2. \u6aa2\u67e5DNS\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u4e3b\u6a5f\u540d\u6b63\u78ba\uff0c\u4f46\u4ecd\u7136\u7121\u6cd5\u9023\u63a5\uff0c\u5247\u53ef\u80fd\u662fDNS\u554f\u984c\u3002\u53ef\u4ee5\u5617\u8a66\u4f7f\u7528IP\u5730\u5740\u76f4\u63a5\u9023\u63a5MySQL\u4f3a\u670d\u5668\uff0c\u9019\u6a23\u53ef\u4ee5\u7e5e\u904eDNS\u89e3\u6790\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>mysql -h 192.168.1.1 -u username -p<\/code><\/pre>\n<p>\u5982\u679c\u9019\u6a23\u53ef\u4ee5\u6210\u529f\u9023\u63a5\uff0c\u5247\u9700\u8981\u6aa2\u67e5DNS\u8a2d\u7f6e\uff0c\u78ba\u4fdd\u6b63\u78ba\u914d\u7f6e\u4e86DNS\u670d\u52d9\u5668\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e7%b6%b2%e7%b5%a1%e9%80%a3%e6%8e%a5-aLvgtAlwrs\">3. \u6aa2\u67e5\u7db2\u7d61\u9023\u63a5<\/h3>\n<p>\u78ba\u4fdd\u5ba2\u6236\u7aef\u548c\u4f3a\u670d\u5668\u4e4b\u9593\u7684\u7db2\u7d61\u9023\u63a5\u6b63\u5e38\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u7aef\u53e3\u662f\u5426\u958b\u653e\uff1a<\/p>\n<pre><code>telnet your_mysql_host 3306<\/code><\/pre>\n<p>\u5982\u679c\u7121\u6cd5\u9023\u63a5\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u7db2\u7d61\u8a2d\u7f6e\u548c\u8def\u7531\u5668\u914d\u7f6e\u3002<\/p>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-aLvgtAlwrs\">4. \u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u4ee5\u4e0a\u6b65\u9a5f\u90fd\u6b63\u5e38\uff0c\u4f46\u4ecd\u7136\u7121\u6cd5\u9023\u63a5\uff0c\u5247\u9700\u8981\u6aa2\u67e5\u4f3a\u670d\u5668\u7684\u9632\u706b\u7246\u8a2d\u7f6e\u3002\u78ba\u4fdd3306\u7aef\u53e3\uff08MySQL\u7684\u9ed8\u8a8d\u7aef\u53e3\uff09\u5df2\u7d93\u958b\u653e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo ufw status<\/code><\/pre>\n<p>\u5982\u679c\u9632\u706b\u7246\u963b\u6b62\u4e86\u9023\u63a5\uff0c\u5247\u9700\u8981\u6dfb\u52a0\u898f\u5247\u4ee5\u5141\u8a31\u8a2a\u554f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-aLvgtAlwrs\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa42005 &#8211; (CR_UNKNOWN_HOST) \u901a\u5e38\u662f\u7531\u65bc\u4e3b\u6a5f\u540d\u89e3\u6790\u5931\u6557\u6216\u7db2\u7d61\u9023\u63a5\u554f\u984c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u4e3b\u6a5f\u540d\u3001DNS\u8a2d\u7f6e\u3001\u7db2\u7d61\u9023\u63a5\u548c\u9632\u706b\u7246\u8a2d\u7f6e\uff0c\u901a\u5e38\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u4e26\u89e3\u6c7a\u554f\u984c\u3002\u5982\u679c\u4f60\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u670d\u52d9\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u6258\u7ba1\u4f60\u7684MySQL\u6578\u64da\u5eab\uff0c\u4ee5\u78ba\u4fdd\u9ad8\u53ef\u7528\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42005 (CR_UNKNOWN_HOST)\uff0c\u89e3\u6c7a\u672a\u77e5\u7684MySQL\u4f3a\u670d\u5668\u4e3b\u6a5f\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u9023\u63a5\u6b63\u5e38\u904b\u884c\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-178518","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=178518"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178518\/revisions"}],"predecessor-version":[{"id":178519,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178518\/revisions\/178519"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}