{"id":52331,"date":"2024-10-09T01:45:13","date_gmt":"2024-10-08T17:45:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/52331\/"},"modified":"2024-11-14T10:39:23","modified_gmt":"2024-11-14T02:39:23","slug":"ubuntu-%e9%81%a0%e7%a8%8b%e9%80%a3%e6%8e%a5-mysql-connection-refused-%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/52331\/","title":{"rendered":"Ubuntu \u9060\u7a0b\u9023\u63a5 MySQL (connection refused) \u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"ubuntu-%e9%81%a0%e7%a8%8b%e9%80%a3%e6%8e%a5-mysql-connection-refused-%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95-VgWnCdVIjr\">Ubuntu \u9060\u7a0b\u9023\u63a5 MySQL (connection refused) \u89e3\u6c7a\u65b9\u6cd5<\/h1>\n<p>\u5728\u4f7f\u7528 Ubuntu \u7cfb\u7d71\u9032\u884c\u9060\u7a0b\u9023\u63a5 MySQL \u6578\u64da\u5eab\u6642\uff0c\u7d93\u5e38\u6703\u9047\u5230\u300cconnection refused\u300d\u7684\u932f\u8aa4\u3002\u9019\u500b\u554f\u984c\u53ef\u80fd\u7531\u591a\u7a2e\u539f\u56e0\u5f15\u8d77\uff0c\u5305\u62ec\u9632\u706b\u7246\u8a2d\u7f6e\u3001MySQL \u914d\u7f6e\u6587\u4ef6\u7684\u8a2d\u7f6e\u4e0d\u7576\u3001\u6216\u662f\u7528\u6236\u6b0a\u9650\u4e0d\u8db3\u7b49\u3002\u672c\u6587\u5c07\u91dd\u5c0d\u9019\u4e9b\u5e38\u898b\u554f\u984c\u63d0\u4f9b\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u7528\u6236\u9806\u5229\u9023\u63a5 MySQL \u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"1-%e7%a2%ba%e8%aa%8d-mysql-%e6%9c%8d%e5%8b%99%e6%98%af%e5%90%a6%e9%81%8b%e8%a1%8c-VgWnCdVIjr\">1. \u78ba\u8a8d MySQL \u670d\u52d9\u662f\u5426\u904b\u884c<\/h2>\n<p>\u9996\u5148\uff0c\u78ba\u4fdd MySQL \u670d\u52d9\u6b63\u5728\u904b\u884c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5 MySQL \u7684\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo systemctl status mysql<\/code><\/pre>\n<p>\u5982\u679c\u670d\u52d9\u672a\u904b\u884c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5 MySQL\uff1a<\/p>\n<pre><code>sudo systemctl start mysql<\/code><\/pre>\n<h2 id=\"2-%e6%aa%a2%e6%9f%a5-mysql-%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6-VgWnCdVIjr\">2. \u6aa2\u67e5 MySQL \u914d\u7f6e\u6587\u4ef6<\/h2>\n<p>MySQL \u7684\u914d\u7f6e\u6587\u4ef6\u901a\u5e38\u4f4d\u65bc \/etc\/mysql\/mysql.conf.d\/mysqld.cnf\u3002\u6253\u958b\u8a72\u6587\u4ef6\uff0c\u6aa2\u67e5\u4ee5\u4e0b\u5e7e\u500b\u8a2d\u7f6e\uff1a<\/p>\n<ul>\n<li><strong>bind-address<\/strong>: \u78ba\u4fdd\u9019\u500b\u8a2d\u7f6e\u5141\u8a31\u9060\u7a0b\u9023\u63a5\u3002\u53ef\u4ee5\u5c07\u5176\u8a2d\u7f6e\u70ba 0.0.0.0 \u4f86\u5141\u8a31\u6240\u6709 IP \u5730\u5740\u7684\u9023\u63a5\u3002<\/li>\n<li><strong>port<\/strong>: \u78ba\u4fdd MySQL \u4f7f\u7528\u7684\u7aef\u53e3\uff08\u9ed8\u8a8d\u70ba 3306\uff09\u672a\u88ab\u5176\u4ed6\u61c9\u7528\u7a0b\u5e8f\u4f54\u7528\u3002<\/li>\n<\/ul>\n<p>\u4fee\u6539\u5f8c\uff0c\u8a18\u5f97\u91cd\u555f MySQL \u670d\u52d9\uff1a<\/p>\n<pre><code>sudo systemctl restart mysql<\/code><\/pre>\n<h2 id=\"3-%e6%aa%a2%e6%9f%a5%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-VgWnCdVIjr\">3. \u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e<\/h2>\n<p>\u5982\u679c\u9632\u706b\u7246\u8a2d\u7f6e\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u963b\u6b62\u9060\u7a0b\u9023\u63a5\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\u5df2\u555f\u7528\uff0c\u78ba\u4fdd\u958b\u653e MySQL \u7684\u7aef\u53e3\uff08\u9ed8\u8a8d\u70ba 3306\uff09\uff1a<\/p>\n<pre><code>sudo ufw allow 3306<\/code><\/pre>\n<h2 id=\"4-%e6%aa%a2%e6%9f%a5%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-VgWnCdVIjr\">4. \u6aa2\u67e5\u7528\u6236\u6b0a\u9650<\/h2>\n<p>\u78ba\u4fdd\u7528\u65bc\u9023\u63a5\u7684 MySQL \u7528\u6236\u5177\u6709\u8db3\u5920\u7684\u6b0a\u9650\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u7528\u6236\u7684\u6b0a\u9650\uff1a<\/p>\n<pre><code>SELECT host FROM mysql.user;<\/code><\/pre>\n<p>\u5982\u679c\u7528\u6236\u7684 host \u8a2d\u7f6e\u70ba localhost\uff0c\u5247\u7121\u6cd5\u5f9e\u9060\u7a0b\u4e3b\u6a5f\u9023\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6388\u4e88\u7528\u6236\u5f9e\u4efb\u4f55\u4e3b\u6a5f\u7684\u8a2a\u554f\u6b0a\u9650\uff1a<\/p>\n<pre><code>GRANT ALL PRIVILEGES ON *.* TO 'your_user'@'%' IDENTIFIED BY 'your_password';<\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u8a18\u5f97\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\uff1a<\/p>\n<pre><code>FLUSH PRIVILEGES;<\/code><\/pre>\n<h2 id=\"5-%e6%b8%ac%e8%a9%a6%e9%80%a3%e6%8e%a5-VgWnCdVIjr\">5. \u6e2c\u8a66\u9023\u63a5<\/h2>\n<p>\u5b8c\u6210\u4e0a\u8ff0\u6b65\u9a5f\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6e2c\u8a66\u9060\u7a0b\u9023\u63a5\uff1a<\/p>\n<pre><code>mysql -u your_user -p -h your_server_ip<\/code><\/pre>\n<p>\u5982\u679c\u4e00\u5207\u6b63\u5e38\uff0c\u61c9\u8a72\u80fd\u5920\u6210\u529f\u9023\u63a5\u5230 MySQL \u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VgWnCdVIjr\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Ubuntu \u7cfb\u7d71\u4e2d\u9060\u7a0b\u9023\u63a5 MySQL \u6642\uff0c\u9047\u5230\u300cconnection refused\u300d\u7684\u554f\u984c\u901a\u5e38\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5 MySQL \u670d\u52d9\u72c0\u614b\u3001\u914d\u7f6e\u6587\u4ef6\u3001\u9632\u706b\u7246\u8a2d\u7f6e\u53ca\u7528\u6236\u6b0a\u9650\u4f86\u89e3\u6c7a\u3002\u9019\u4e9b\u6b65\u9a5f\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u4e26\u9032\u884c\u4fee\u5fa9\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u904b\u884c\u60a8\u7684 MySQL \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u500b\u4eba\u9805\u76ee\u9084\u662f\u5546\u696d\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a Ubuntu \u9060\u7a0b\u9023\u63a5 MySQL \u7684 &#8220;connection refused&#8221; \u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u6b65\u9a5f\u548c\u6280\u5de7\uff0c\u52a9\u4f60\u9806\u5229\u9023\u63a5\u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-52331","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/52331","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=52331"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/52331\/revisions"}],"predecessor-version":[{"id":52332,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/52331\/revisions\/52332"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=52331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=52331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=52331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}