{"id":178602,"date":"2024-11-08T19:20:20","date_gmt":"2024-11-08T11:20:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178602\/"},"modified":"2024-11-08T19:20:20","modified_gmt":"2024-11-08T11:20:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42047-cr_conn_unknow_protocol-%e9%94%99%e8%af%af%e6%88%96%e6%9c%aa%e7%9f%a5%e7%9a%84%e5%8d%8f%e8%ae%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178602\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42047 &#8211; (CR_CONN_UNKNOW_PROTOCOL) \u9519\u8bef\u6216\u672a\u77e5\u7684\u534f\u8bae"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a42047-cr_conn_unknow_protocol-%e9%8c%af%e8%aa%a4%e6%88%96%e6%9c%aa%e7%9f%a5%e7%9a%84%e5%8d%94%e8%ad%b0-ZCCJdnxBVr\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa42047 &#8211; (CR_CONN_UNKNOW_PROTOCOL) \u932f\u8aa4\u6216\u672a\u77e5\u7684\u5354\u8b70<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa42047\uff0c\u986f\u793a\u70ba(CR_CONN_UNKNOW_PROTOCOL)\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207MySQL\u5ba2\u6236\u7aef\u548c\u670d\u52d9\u5668\u4e4b\u9593\u7684\u9023\u63a5\u554f\u984c\u6709\u95dc\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528\u4e0d\u6b63\u78ba\u7684\u5354\u8b70\u6216\u914d\u7f6e\u6642\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a42047%e7%9a%84%e5%8e%9f%e5%9b%a0-ZCCJdnxBVr\">\u932f\u8aa42047\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa42047\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u9023\u63a5\u53c3\u6578\uff1a<\/strong>\u7576MySQL\u5ba2\u6236\u7aef\u4f7f\u7528\u4e0d\u6b63\u78ba\u7684\u4e3b\u6a5f\u540d\u3001\u7aef\u53e3\u6216\u7528\u6236\u540d\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u517c\u5bb9\u7684\u5354\u8b70\u7248\u672c\uff1a<\/strong>\u5982\u679c\u5ba2\u6236\u7aef\u548c\u670d\u52d9\u5668\u4e4b\u9593\u7684\u5354\u8b70\u7248\u672c\u4e0d\u5339\u914d\uff0c\u5247\u53ef\u80fd\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u8f03\u820a\u7248\u672c\u7684\u5ba2\u6236\u7aef\u9023\u63a5\u5230\u8f03\u65b0\u7248\u672c\u7684MySQL\u670d\u52d9\u5668\u3002<\/li>\n<li><strong>\u9632\u706b\u7246\u6216\u7db2\u7d61\u554f\u984c\uff1a<\/strong>\u9632\u706b\u7246\u8a2d\u7f6e\u6216\u7db2\u7d61\u914d\u7f6e\u4e0d\u7576\u53ef\u80fd\u6703\u963b\u6b62\u5ba2\u6236\u7aef\u8207\u670d\u52d9\u5668\u4e4b\u9593\u7684\u6b63\u5e38\u901a\u4fe1\u3002<\/li>\n<li><strong>MySQL\u914d\u7f6e\u554f\u984c\uff1a<\/strong>MySQL\u670d\u52d9\u5668\u7684\u914d\u7f6e\u6587\u4ef6\uff08\u5982my.cnf\uff09\u4e2d\u53ef\u80fd\u5b58\u5728\u932f\u8aa4\uff0c\u5c0e\u81f4\u5354\u8b70\u7121\u6cd5\u6b63\u78ba\u8b58\u5225\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a42047-ZCCJdnxBVr\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa42047<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa42047\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e9%80%a3%e6%8e%a5%e5%8f%83%e6%95%b8-ZCCJdnxBVr\">1. \u6aa2\u67e5\u9023\u63a5\u53c3\u6578<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u9023\u63a5\u53c3\u6578\u6b63\u78ba\u7121\u8aa4\u3002\u6aa2\u67e5\u4ee5\u4e0b\u5167\u5bb9\uff1a<\/p>\n<ul>\n<li>\u4e3b\u6a5f\u540d\uff08hostname\uff09\uff1a\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u4e3b\u6a5f\u540d\u6b63\u78ba\uff0c\u4e26\u4e14\u80fd\u5920\u89e3\u6790\u5230\u6b63\u78ba\u7684IP\u5730\u5740\u3002<\/li>\n<li>\u7aef\u53e3\u865f\uff08port\uff09\uff1a\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0cMySQL\u4f7f\u75283306\u7aef\u53e3\uff0c\u8acb\u78ba\u8a8d\u60a8\u672a\u66f4\u6539\u6b64\u8a2d\u7f6e\uff0c\u6216\u5728\u9023\u63a5\u6642\u6307\u5b9a\u6b63\u78ba\u7684\u7aef\u53e3\u3002<\/li>\n<li>\u7528\u6236\u540d\u548c\u5bc6\u78bc\uff1a\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u7528\u6236\u540d\u548c\u5bc6\u78bc\u6b63\u78ba\uff0c\u4e26\u4e14\u8a72\u7528\u6236\u5177\u6709\u8a2a\u554f\u6578\u64da\u5eab\u7684\u6b0a\u9650\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e6%9b%b4%e6%96%b0mysql%e5%ae%a2%e6%88%b6%e7%ab%af-ZCCJdnxBVr\">2. \u66f4\u65b0MySQL\u5ba2\u6236\u7aef<\/h3>\n<p>\u5982\u679c\u60a8\u4f7f\u7528\u7684MySQL\u5ba2\u6236\u7aef\u7248\u672c\u8f03\u820a\uff0c\u5efa\u8b70\u5347\u7d1a\u5230\u6700\u65b0\u7248\u672c\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5ba2\u6236\u7aef\u8207\u670d\u52d9\u5668\u4e4b\u9593\u7684\u5354\u8b70\u517c\u5bb9\u6027\u3002\u60a8\u53ef\u4ee5\u5f9eMySQL\u7684\u5b98\u65b9\u7db2\u7ad9\u4e0b\u8f09\u6700\u65b0\u7248\u672c\u7684\u5ba2\u6236\u7aef\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-ZCCJdnxBVr\">3. \u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e<\/h3>\n<p>\u5982\u679c\u60a8\u5728\u4f7f\u7528\u9632\u706b\u7246\uff0c\u8acb\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e\uff0c\u78ba\u4fdd\u5141\u8a31MySQL\u7684\u7aef\u53e3\uff08\u9ed8\u8a8d\u70ba3306\uff09\u901a\u904e\u3002\u60a8\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\u7aef\u53e3\u672a\u958b\u653e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u958b\u653e\u7aef\u53e3\uff1a<\/p>\n<pre><code>sudo ufw allow 3306<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5mysql%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6-ZCCJdnxBVr\">4. \u6aa2\u67e5MySQL\u914d\u7f6e\u6587\u4ef6<\/h3>\n<p>\u6aa2\u67e5MySQL\u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u4f4d\u65bc\/etc\/mysql\/my.cnf\u6216\/etc\/my.cnf\uff09\u4ee5\u78ba\u4fdd\u6c92\u6709\u932f\u8aa4\u7684\u8a2d\u7f6e\u3002\u7279\u5225\u662f\uff0c\u6aa2\u67e5\u4ee5\u4e0b\u53c3\u6578\uff1a<\/p>\n<ul>\n<li><strong>skip-networking\uff1a<\/strong>\u5982\u679c\u6b64\u53c3\u6578\u88ab\u555f\u7528\uff0c\u5247MySQL\u5c07\u4e0d\u6703\u63a5\u53d7\u4efb\u4f55\u7db2\u7d61\u9023\u63a5\uff0c\u8acb\u78ba\u4fdd\u5c07\u5176\u8a3b\u91cb\u6389\u6216\u8a2d\u7f6e\u70ba\u95dc\u9589\u3002<\/li>\n<li><strong>bind-address\uff1a<\/strong>\u78ba\u4fdd\u6b64\u53c3\u6578\u8a2d\u7f6e\u70ba\u6b63\u78ba\u7684IP\u5730\u5740\uff0c\u6216\u8005\u8a2d\u7f6e\u70ba0.0.0.0\u4ee5\u5141\u8a31\u6240\u6709IP\u5730\u5740\u7684\u9023\u63a5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZCCJdnxBVr\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa42047 (CR_CONN_UNKNOW_PROTOCOL) \u901a\u5e38\u662f\u7531\u65bc\u9023\u63a5\u53c3\u6578\u4e0d\u6b63\u78ba\u3001\u5354\u8b70\u4e0d\u517c\u5bb9\u6216\u9632\u706b\u7246\u8a2d\u7f6e\u554f\u984c\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u9023\u63a5\u53c3\u6578\u3001\u66f4\u65b0\u5ba2\u6236\u7aef\u3001\u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e\u4ee5\u53ca\u6aa2\u67e5MySQL\u914d\u7f6e\u6587\u4ef6\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5982\u679c\u60a8\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\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u78ba\u4fdd\u9ad8\u6548\u7684\u6027\u80fd\u548c\u53ef\u9760\u7684\u9023\u63a5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa42047 (CR_CONN_UNKNOW_PROTOCOL) \u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u60a8\u89e3\u6c7a\u9023\u63a5\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\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-178602","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178602","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=178602"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178602\/revisions"}],"predecessor-version":[{"id":178603,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178602\/revisions\/178603"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}