{"id":178514,"date":"2024-11-08T18:36:19","date_gmt":"2024-11-08T10:36:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178514\/"},"modified":"2024-11-08T18:36:20","modified_gmt":"2024-11-08T10:36:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42003-cr_conn_host_error-%e6%97%a0%e6%b3%95%e5%9c%a8s%e4%b8%8a%ef%bc%88d%ef%bc%89%e8%bf%9e%e6%8e%a5%e5%88%b0mysql%e6%9c%8d%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178514\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42003 &#8211; (CR_CONN_HOST_ERROR) \u65e0\u6cd5\u5728&#8217;%s&#8217;\u4e0a\uff08%d\uff09\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42003-cr_conn_host_error-%e7%84%a1%e6%b3%95%e5%9c%a8s%e4%b8%8a%ef%bc%88d%ef%bc%89%e9%80%a3%e6%8e%a5%e5%88%b0mysql%e4%bc%ba%e6%9c%8d-sioxsVtIWY\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42003 &#8211; (CR_CONN_HOST_ERROR) \u7121\u6cd5\u5728&#8217;%s&#8217;\u4e0a\uff08%d\uff09\u9023\u63a5\u5230MySQL\u4f3a\u670d\u5668<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u932f\u8aa42003 &#8211; (CR_CONN_HOST_ERROR) \u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u8868\u793a\u7121\u6cd5\u9023\u63a5\u5230MySQL\u4f3a\u670d\u5668\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\u6216\u4f3a\u670d\u5668\u672a\u555f\u52d5\u7b49\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u8a3a\u65b7\u548c\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u5176\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a42003%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-sioxsVtIWY\">\u932f\u8aa42003\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<p>\u5728\u6df1\u5165\u4fee\u5fa9\u65b9\u6cd5\u4e4b\u524d\uff0c\u4e86\u89e3\u932f\u8aa4\u7684\u6839\u672c\u539f\u56e0\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u5c0e\u81f4\u932f\u8aa42003\u7684\u5e38\u898b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>MySQL\u4f3a\u670d\u5668\u672a\u555f\u52d5\uff1a<\/strong>\u5982\u679cMySQL\u670d\u52d9\u672a\u904b\u884c\uff0c\u5247\u7121\u6cd5\u5efa\u7acb\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\u904b\u884c\u5728\u975e\u9ed8\u8a8d\u7aef\u53e3\u4e0a\u3002<\/li>\n<li><strong>\u4e3b\u6a5f\u540d\u6216IP\u5730\u5740\u932f\u8aa4\uff1a<\/strong>\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u7684\u4e3b\u6a5f\u540d\u6216IP\u5730\u5740\u4e0d\u6b63\u78ba\uff0c\u6703\u5c0e\u81f4\u7121\u6cd5\u9023\u63a5\u3002<\/li>\n<li><strong>\u7aef\u53e3\u865f\u932f\u8aa4\uff1a<\/strong>\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0cMySQL\u4f7f\u75283306\u7aef\u53e3\uff0c\u5982\u679c\u914d\u7f6e\u4e86\u4e0d\u540c\u7684\u7aef\u53e3\uff0c\u5247\u9700\u8981\u5728\u9023\u63a5\u6642\u6307\u5b9a\u3002<\/li>\n<li><strong>\u7528\u6236\u540d\u6216\u5bc6\u78bc\u932f\u8aa4\uff1a<\/strong>\u63d0\u4f9b\u7684\u7528\u6236\u540d\u6216\u5bc6\u78bc\u4e0d\u6b63\u78ba\uff0c\u6703\u5c0e\u81f4\u8eab\u4efd\u9a57\u8b49\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a8%ba%e6%96%b7%e6%ad%a5%e9%a9%9f-sioxsVtIWY\">\u8a3a\u65b7\u6b65\u9a5f<\/h2>\n<p>\u5728\u4fee\u5fa9\u932f\u8aa4\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9032\u884c\u4e00\u4e9b\u8a3a\u65b7\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li><strong>\u6aa2\u67e5MySQL\u670d\u52d9\u72c0\u614b\uff1a<\/strong>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5MySQL\u670d\u52d9\u662f\u5426\u6b63\u5728\u904b\u884c\uff1a<\/li>\n<pre><code>systemctl status mysql<\/code><\/pre>\n<li><strong>\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e\uff1a<\/strong>\u78ba\u4fdd\u9632\u706b\u7246\u5141\u8a313306\u7aef\u53e3\u7684\u6d41\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\uff1a<\/li>\n<pre><code>sudo ufw status<\/code><\/pre>\n<li><strong>\u78ba\u8a8d\u4e3b\u6a5f\u540d\u548c\u7aef\u53e3\uff1a<\/strong>\u6aa2\u67e5\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u7684\u4e3b\u6a5f\u540d\u548c\u7aef\u53e3\u662f\u5426\u6b63\u78ba\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u9023\u63a5\uff1a<\/strong>\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u6e2c\u8a66\u9023\u63a5\uff1a<\/li>\n<pre><code>mysql -h your_host -u your_user -p<\/code><\/pre>\n<\/ol>\n<h2 id=\"%e4%bf%ae%e5%be%a9%e6%96%b9%e6%b3%95-sioxsVtIWY\">\u4fee\u5fa9\u65b9\u6cd5<\/h2>\n<p>\u6839\u64da\u8a3a\u65b7\u7d50\u679c\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4fee\u5fa9\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e5%95%9f%e5%8b%95mysql%e6%9c%8d%e5%8b%99-sioxsVtIWY\">1. \u555f\u52d5MySQL\u670d\u52d9<\/h3>\n<p>\u5982\u679cMySQL\u670d\u52d9\u672a\u904b\u884c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5\u5b83\uff1a<\/p>\n<pre><code>sudo systemctl start mysql<\/code><\/pre>\n<h3 id=\"2-%e9%85%8d%e7%bd%ae%e9%98%b2%e7%81%ab%e7%89%86-sioxsVtIWY\">2. \u914d\u7f6e\u9632\u706b\u7246<\/h3>\n<p>\u5982\u679c\u9632\u706b\u7246\u963b\u6b62\u4e86\u9023\u63a5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5141\u8a313306\u7aef\u53e3\uff1a<\/p>\n<pre><code>sudo ufw allow 3306<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e4%b8%bb%e6%a9%9f%e5%90%8d%e5%92%8c%e7%ab%af%e5%8f%a3-sioxsVtIWY\">3. \u6aa2\u67e5\u4e3b\u6a5f\u540d\u548c\u7aef\u53e3<\/h3>\n<p>\u78ba\u4fdd\u5728\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u4f7f\u7528\u6b63\u78ba\u7684\u4e3b\u6a5f\u540d\u548c\u7aef\u53e3\u3002\u5982\u679cMySQL\u904b\u884c\u5728\u4e0d\u540c\u7684\u7aef\u53e3\u4e0a\uff0c\u8acb\u5728\u9023\u63a5\u6642\u6307\u5b9a\u7aef\u53e3\uff1a<\/p>\n<pre><code>mysql -h your_host -P your_port -u your_user -p<\/code><\/pre>\n<h3 id=\"4-%e9%a9%97%e8%ad%89%e7%94%a8%e6%88%b6%e5%90%8d%e5%92%8c%e5%af%86%e7%a2%bc-sioxsVtIWY\">4. \u9a57\u8b49\u7528\u6236\u540d\u548c\u5bc6\u78bc<\/h3>\n<p>\u78ba\u4fdd\u63d0\u4f9b\u7684\u7528\u6236\u540d\u548c\u5bc6\u78bc\u6b63\u78ba\u3002\u5982\u679c\u4e0d\u78ba\u5b9a\uff0c\u53ef\u4ee5\u91cd\u7f6e\u5bc6\u78bc\uff1a<\/p>\n<pre><code>ALTER USER 'your_user'@'localhost' IDENTIFIED BY 'new_password';<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sioxsVtIWY\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa42003 &#8211; (CR_CONN_HOST_ERROR) \u662f\u4e00\u500b\u5e38\u898b\u7684\u9023\u63a5\u554f\u984c\uff0c\u901a\u5e38\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u670d\u52d9\u72c0\u614b\u3001\u9632\u706b\u7246\u8a2d\u7f6e\u548c\u9023\u63a5\u53c3\u6578\u4f86\u89e3\u6c7a\u3002\u4e86\u89e3\u9019\u4e9b\u57fa\u672c\u7684\u6545\u969c\u6392\u9664\u6b65\u9a5f\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u66f4\u5feb\u5730\u6062\u5fa9\u6578\u64da\u5eab\u7684\u6b63\u5e38\u904b\u884c\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\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\u652f\u6301\u60a8\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa42003 (CR_CONN_HOST_ERROR) \u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u7121\u6cd5\u9023\u63a5\u5230MySQL\u4f3a\u670d\u5668\u7684\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u9023\u63a5\u7a69\u5b9a\u6027\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-178514","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178514","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=178514"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178514\/revisions"}],"predecessor-version":[{"id":178515,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178514\/revisions\/178515"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}