{"id":43466,"date":"2024-10-05T18:16:36","date_gmt":"2024-10-05T10:16:36","guid":{"rendered":"https:\/\/server.hk\/cnblog\/43466\/"},"modified":"2024-10-05T18:16:36","modified_gmt":"2024-10-05T10:16:36","slug":"centos-ssh-%e6%8f%90%e7%a4%ba%ef%bc%9aconnect-to-host-centos-py-port-22-connection-refused","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/43466\/","title":{"rendered":"CentOS SSH \u63d0\u793a\uff1aconnect to host centos-py port 22: Connection refused"},"content":{"rendered":"<h1 id=\"centos-ssh-%e6%8f%90%e7%a4%ba%ef%bc%9aconnect-to-host-centos-py-port-22-connection-refused-yTrkfIwDYz\">CentOS SSH \u63d0\u793a\uff1aconnect to host centos-py port 22: Connection refused<\/h1>\n<p>\u5728\u4f7f\u7528 SSH \u9023\u63a5 CentOS \u4f3a\u670d\u5668\u6642\uff0c\u9047\u5230\u300cconnect to host centos-py port 22: Connection refused\u300d\u7684\u932f\u8aa4\u63d0\u793a\uff0c\u9019\u901a\u5e38\u8868\u793a\u7121\u6cd5\u9023\u63a5\u5230\u6307\u5b9a\u7684\u4e3b\u6a5f\u6216\u7aef\u53e3\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u63a2\u8a0e\u6b64\u554f\u984c\u7684\u53ef\u80fd\u539f\u56e0\u53ca\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u6392\u9664\u6545\u969c\u3002<\/p>\n<h2 id=\"ssh-%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-yTrkfIwDYz\">SSH \u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>SSH\uff08Secure Shell\uff09\u662f\u4e00\u7a2e\u5b89\u5168\u7684\u7db2\u7d61\u5354\u8b70\uff0c\u4e3b\u8981\u7528\u65bc\u9060\u7a0b\u767b\u9304\u548c\u5176\u4ed6\u7db2\u7d61\u670d\u52d9\u7684\u5b89\u5168\u901a\u4fe1\u3002\u7576\u7528\u6236\u5617\u8a66\u901a\u904e SSH \u9023\u63a5\u5230\u4f3a\u670d\u5668\u6642\uff0c\u901a\u5e38\u6703\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ssh username@centos-py<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c`username` \u662f\u7528\u6236\u540d\uff0c`centos-py` \u662f\u4f3a\u670d\u5668\u7684\u4e3b\u6a5f\u540d\u6216 IP \u5730\u5740\u3002\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0cSSH \u4f7f\u7528\u7aef\u53e3 22 \u9032\u884c\u901a\u4fe1\u3002<\/p>\n<h2 id=\"%e5%8f%af%e8%83%bd%e7%9a%84%e5%8e%9f%e5%9b%a0-yTrkfIwDYz\">\u53ef\u80fd\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u51fa\u73fe\u300cConnection refused\u300d\u7684\u932f\u8aa4\u6642\uff0c\u53ef\u80fd\u6709\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>SSH \u670d\u52d9\u672a\u555f\u52d5\uff1a<\/strong>\u4f3a\u670d\u5668\u4e0a\u7684 SSH \u670d\u52d9\u53ef\u80fd\u672a\u555f\u52d5\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5 SSH \u670d\u52d9\u7684\u72c0\u614b\uff1a<\/li>\n<pre><code>systemctl status sshd<\/code><\/pre>\n<li><strong>\u9632\u706b\u7246\u8a2d\u7f6e\uff1a<\/strong>\u9632\u706b\u7246\u53ef\u80fd\u963b\u6b62\u4e86\u5c0d\u7aef\u53e3 22 \u7684\u8a2a\u554f\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\uff1a<\/li>\n<pre><code>firewall-cmd --list-all<\/code><\/pre>\n<li><strong>SSH \u914d\u7f6e\u6587\u4ef6\u554f\u984c\uff1a<\/strong>SSH \u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u4f4d\u65bc \/etc\/ssh\/sshd_config\uff09\u53ef\u80fd\u5b58\u5728\u932f\u8aa4\u6216\u4e0d\u7576\u8a2d\u7f6e\u3002\u6aa2\u67e5\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 Port \u8a2d\u7f6e\u662f\u5426\u70ba 22\u3002<\/li>\n<li><strong>\u4e3b\u6a5f\u540d\u89e3\u6790\u554f\u984c\uff1a<\/strong>\u5982\u679c\u4f7f\u7528\u4e3b\u6a5f\u540d\u9023\u63a5\uff0c\u78ba\u4fdd\u8a72\u4e3b\u6a5f\u540d\u80fd\u6b63\u78ba\u89e3\u6790\u70ba IP \u5730\u5740\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\uff1a<\/li>\n<pre><code>ping centos-py<\/code><\/pre>\n<li><strong>\u4f3a\u670d\u5668\u672a\u904b\u884c\uff1a<\/strong>\u4f3a\u670d\u5668\u53ef\u80fd\u5df2\u95dc\u9589\u6216\u7121\u6cd5\u8a2a\u554f\u3002\u6aa2\u67e5\u4f3a\u670d\u5668\u7684\u904b\u884c\u72c0\u614b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-yTrkfIwDYz\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u91dd\u5c0d\u4e0a\u8ff0\u554f\u984c\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e5%95%9f%e5%8b%95-ssh-%e6%9c%8d%e5%8b%99-yTrkfIwDYz\">1. \u555f\u52d5 SSH \u670d\u52d9<\/h3>\n<p>\u5982\u679c SSH \u670d\u52d9\u672a\u555f\u52d5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5\u5b83\uff1a<\/p>\n<pre><code>sudo systemctl start sshd<\/code><\/pre>\n<h3 id=\"2-%e9%85%8d%e7%bd%ae%e9%98%b2%e7%81%ab%e7%89%86-yTrkfIwDYz\">2. \u914d\u7f6e\u9632\u706b\u7246<\/h3>\n<p>\u5982\u679c\u9632\u706b\u7246\u963b\u6b62\u4e86\u7aef\u53e3 22 \u7684\u8a2a\u554f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5141\u8a31 SSH \u6d41\u91cf\uff1a<\/p>\n<pre><code>sudo firewall-cmd --permanent --add-service=ssh<\/code><\/pre>\n<pre><code>sudo firewall-cmd --reload<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5-ssh-%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6-yTrkfIwDYz\">3. \u6aa2\u67e5 SSH \u914d\u7f6e\u6587\u4ef6<\/h3>\n<p>\u7de8\u8f2f SSH \u914d\u7f6e\u6587\u4ef6\uff0c\u78ba\u4fdd Port \u8a2d\u7f6e\u70ba 22\uff1a<\/p>\n<pre><code>sudo nano \/etc\/ssh\/sshd_config<\/code><\/pre>\n<p>\u7136\u5f8c\u91cd\u555f SSH \u670d\u52d9\uff1a<\/p>\n<pre><code>sudo systemctl restart sshd<\/code><\/pre>\n<h3 id=\"4-%e7%a2%ba%e8%aa%8d%e4%b8%bb%e6%a9%9f%e5%90%8d%e8%a7%a3%e6%9e%90-yTrkfIwDYz\">4. \u78ba\u8a8d\u4e3b\u6a5f\u540d\u89e3\u6790<\/h3>\n<p>\u5982\u679c\u4f7f\u7528\u4e3b\u6a5f\u540d\u9023\u63a5\uff0c\u78ba\u4fdd\u5b83\u80fd\u6b63\u78ba\u89e3\u6790\u3002\u5982\u679c\u7121\u6cd5\u89e3\u6790\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 IP \u5730\u5740\u9032\u884c\u9023\u63a5\u3002<\/p>\n<h3 id=\"5-%e6%aa%a2%e6%9f%a5%e4%bc%ba%e6%9c%8d%e5%99%a8%e7%8b%80%e6%85%8b-yTrkfIwDYz\">5. \u6aa2\u67e5\u4f3a\u670d\u5668\u72c0\u614b<\/h3>\n<p>\u78ba\u4fdd\u4f3a\u670d\u5668\u6b63\u5728\u904b\u884c\uff0c\u4e26\u4e14\u7db2\u7d61\u9023\u63a5\u6b63\u5e38\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yTrkfIwDYz\">\u7e3d\u7d50<\/h2>\n<p>\u7576\u60a8\u5728 CentOS \u4e0a\u4f7f\u7528 SSH \u9023\u63a5\u6642\uff0c\u9047\u5230\u300cconnect to host centos-py port 22: Connection refused\u300d\u7684\u932f\u8aa4\u63d0\u793a\uff0c\u901a\u5e38\u662f\u7531\u65bc SSH \u670d\u52d9\u672a\u555f\u52d5\u3001\u9632\u706b\u7246\u8a2d\u7f6e\u3001\u914d\u7f6e\u6587\u4ef6\u554f\u984c\u6216\u4f3a\u670d\u5668\u72c0\u614b\u7b49\u539f\u56e0\u9020\u6210\u7684\u3002\u901a\u904e\u6aa2\u67e5\u548c\u8abf\u6574\u9019\u4e9b\u8a2d\u7f6e\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u6210\u529f\u9023\u63a5\u5230\u4f3a\u670d\u5668\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u51b3CentOS SSH\u8fde\u63a5\u95ee\u9898\uff1a\u63d0\u793a\u201cconnect to host centos-py port 22: Connection refused\u201d\u7684\u539f\u56e0\u53ca\u89e3\u51b3\u65b9\u6848\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-43466","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43466","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=43466"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43466\/revisions"}],"predecessor-version":[{"id":43467,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/43466\/revisions\/43467"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=43466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=43466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=43466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}