{"id":33309,"date":"2026-06-12T13:52:42","date_gmt":"2026-06-12T05:52:42","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/what-to-do-when-the-server-cannot-connect-to-ssh\/"},"modified":"2026-06-12T14:19:10","modified_gmt":"2026-06-12T06:19:10","slug":"what-to-do-when-the-server-cannot-connect-to-ssh","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/what-to-do-when-the-server-cannot-connect-to-ssh\/","title":{"rendered":"\u7576\u4f3a\u670d\u5668\u7121\u6cd5\u9023\u7dda SSH \u6642\u8a72\u600e\u9ebc\u8fa6"},"content":{"rendered":"<p>\u7576\u4f60\u767c\u73fe<a href=\"https:\/\/www.varidata.com\/zh-tw\/server\/tokyo\/\" target=\"_blank\">\u4f3a\u670d\u5668<\/a>\u7121\u6cd5\u900f\u904e SSH \u9023\u7dda\u6642\uff0c\u96e3\u514d\u6703\u611f\u5230\u6cae\u55aa\u6216\u64d4\u6182\u3002\u8acb\u5148\u4fdd\u6301\u51b7\u975c\u3002\u4f60\u53ef\u4ee5\u6309\u7167\u660e\u78ba\u7684\u6b65\u9a5f\u4f86\u89e3\u6c7a\u554f\u984c\uff0c\u4e26\u4e14\u7121\u9808\u5192\u8457\u8cc7\u6599\u98a8\u96aa\u76f2\u76ee\u64cd\u4f5c\u3002\u8acb\u8010\u5fc3\u95b1\u8b80\u672c\u6307\u5357\u3002\u4f60\u5c07\u5b78\u6703\u5982\u4f55\u5728\u4fdd\u969c<a href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/how-to-build-a-web-crawler-cluster-for-large-scale-data-scraping\/\" target=\"_blank\">\u8cc7\u6599\u5b89\u5168<\/a>\u7684\u524d\u63d0\u4e0b\u8655\u7406\u9019\u500b\u554f\u984c\u3002\u70ba\u4e86\u7372\u5f97\u6700\u4f73\u6548\u679c\uff0c\u8acb\u4f9d\u7167\u9806\u5e8f\u9010\u6b65\u6392\u67e5\u3002<\/p>\n<h2>\u7576\u4f3a\u670d\u5668\u7121\u6cd5\u9023\u7dda\u6642\u7684\u7dca\u6025\u8655\u7406\u63aa\u65bd<\/h2>\n<p>\u7576\u4f60\u767c\u73fe\u4f3a\u670d\u5668\u7121\u6cd5\u9023\u7dda\u6642\uff0c\u61c9\u5118\u5feb\u5148\u6aa2\u67e5\u4e00\u4e9b\u57fa\u790e\u9805\u76ee\u3002\u9019\u4e9b\u521d\u6b65\u6b65\u9a5f\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5728\u9032\u5165\u66f4\u6df1\u5165\u7684\u6545\u969c\u6392\u9664\u4e4b\u524d\uff0c\u5148\u767c\u73fe\u4e00\u4e9b\u7c21\u55ae\u554f\u984c\u3002<\/p>\n<h3>\u6aa2\u67e5\u4f3a\u670d\u5668\u72c0\u614b\u548c\u57f7\u884c\u6642\u9593<\/h3>\n<p>\u9996\u5148\uff0c\u78ba\u8a8d\u4f60\u7684\u4f3a\u670d\u5668\u5be6\u969b\u4e0a\u6b63\u5728\u904b\u4f5c\u3002\u8a31\u591a\u670d\u52d9\u5546\u90fd\u6703\u63d0\u4f9b\u63a7\u5236\u53f0\uff0c\u4f60\u53ef\u4ee5\u5728\u5176\u4e2d\u67e5\u770b\u4f3a\u670d\u5668\u662f\u5426\u5728\u7dda\u4e0a\u3002\u5982\u679c\u4f60\u770b\u5230\u4f3a\u670d\u5668\u5df2\u505c\u6b62\u6216\u88ab\u66ab\u505c\uff0c\u90a3\u9ebc\u4f60\u5c07\u7121\u6cd5\u9023\u7dda\u3002\u6709\u4e9b\u670d\u52d9\u5546\u53ef\u80fd\u6703\u56e0\u6feb\u7528\u884c\u70ba\u6216\u5e33\u55ae\u903e\u671f\u800c\u9396\u5b9a\u4f3a\u670d\u5668\u3002\u8acb\u67e5\u770b\u662f\u5426\u6709\u4efb\u4f55\u95dc\u65bc\u4f3a\u670d\u5668\u72c0\u614b\u7684\u63d0\u9192\u6216\u8b66\u544a\u3002\u5982\u679c\u4f60\u770b\u5230\u300cconnection refused\uff08\u9023\u7dda\u88ab\u62d2\u7d55\uff09\u300d\u4e4b\u985e\u7684\u8a0a\u606f\uff0c\u8868\u793a\u4f3a\u670d\u5668\u53ef\u80fd\u6c92\u6709\u63a5\u53d7\u9023\u7dda\u8acb\u6c42\u3002<\/p>\n<blockquote>\n<p><strong>\u63d0\u793a\uff1a<\/strong>\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f\u96f2\u7aef\u4f3a\u670d\u5668\u79df\u7528\uff0c\u8acb\u6aa2\u67e5\u57f7\u884c\u500b\u9ad4\u72c0\u614b\u3002\u57f7\u884c\u500b\u9ad4\u8655\u65bc\u5df2\u505c\u6b62\u6216\u6b63\u5728\u91cd\u65b0\u555f\u52d5\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4 connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\u3002<\/p>\n<\/blockquote>\n<h3>\u67e5\u770b\u4f3a\u670d\u5668\u79df\u7528\u63a7\u5236\u53f0\u4e2d\u7684\u8b66\u793a\u8cc7\u8a0a<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u767b\u5165\u4f60\u7684\u4f3a\u670d\u5668\u79df\u7528\u63a7\u5236\u53f0\uff0c\u67e5\u770b\u5176\u4e2d\u7684\u8b66\u793a\u6216\u901a\u77e5\u3002\u9019\u4e9b\u8cc7\u8a0a\u53ef\u80fd\u6703\u63d0\u793a\u4f60\u662f\u5426\u5b58\u5728\u6feb\u7528\u9396\u5b9a\u3001\u7dad\u8b77\u6216\u7db2\u8def\u554f\u984c\u3002\u5982\u679c\u4f60\u770b\u5230 authentication failed\uff08\u8eab\u5206\u9a57\u8b49\u5931\u6557\uff09\u7684\u63d0\u793a\uff0c\u8acb\u518d\u6b21\u78ba\u8a8d\u4f60\u7684\u4f7f\u7528\u8005\u540d\u7a31\u3001\u79c1\u9470\u8def\u5f91\u4ee5\u53ca\u901a\u95dc\u7247\u8a9e\u662f\u5426\u6b63\u78ba\u3002\u6709\u4e9b\u63a7\u5236\u53f0\u6703\u986f\u793a\u4f3a\u670d\u5668 unable to ssh\uff08\u7121\u6cd5 SSH \u767b\u5165\uff09\u662f\u5426\u662f\u7531\u65bc\u9632\u706b\u7246\u898f\u5247\u6216\u9023\u63a5\u57e0\u88ab\u963b\u64cb\u6240\u9020\u6210\u3002\u5982\u679c\u4f60\u770b\u5230 connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\uff0c\u8acb\u6aa2\u67e5\u6b63\u78ba\u7684\u9023\u63a5\u57e0\u662f\u5426\u5df2\u958b\u653e\u3002<\/p>\n<p><strong>\u4f60\u53ef\u80fd\u6703\u770b\u5230\u7684\u5e38\u898b\u8b66\u793a\uff1a<\/strong><\/p>\n<ol>\n<li>\n<p>Authentication failed\uff08\u8eab\u5206\u9a57\u8b49\u5931\u6557\uff09\u2014\u2014\u6aa2\u67e5\u4f60\u7684\u767b\u5165\u8cc7\u8a0a\u3002<\/p>\n<\/li>\n<li>\n<p>Passphrase required\uff08\u9700\u8981\u901a\u95dc\u7247\u8a9e\uff09\u2014\u2014\u8f38\u5165\u4f60\u7684 SSH \u901a\u95dc\u7247\u8a9e\u3002<\/p>\n<\/li>\n<li>\n<p>Connection timed out\uff08\u9023\u7dda\u903e\u6642\uff09\u2014\u2014\u6aa2\u67e5\u4f60\u7684\u9632\u706b\u7246\u548c\u9023\u63a5\u57e0\u8a2d\u5b9a\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u78ba\u8a8d\u7db2\u8def\u548c IP \u4f4d\u5740<\/h3>\n<p>\u4f60\u9700\u8981\u78ba\u4fdd\u81ea\u5df1\u4f7f\u7528\u7684\u662f\u6b63\u78ba\u7684 IP \u4f4d\u5740\u6216\u4e3b\u6a5f\u540d\u7a31\u3002\u4e00\u500b\u5f88\u5c0f\u7684\u62fc\u5b57\u932f\u8aa4\u90fd\u53ef\u80fd\u5c0e\u81f4\u9023\u7dda\u5931\u6557\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 ping \u6307\u4ee4\u6aa2\u67e5\u4e3b\u6a5f\u540d\u7a31\u662f\u5426\u80fd\u5920\u6b63\u78ba\u89e3\u6790\u3002\u5982\u679c ping \u5931\u6557\uff0c\u53ef\u5617\u8a66\u4f7f\u7528\u7b2c\u4e09\u65b9 DNS \u6aa2\u67e5\u5de5\u5177\u4f86\u78ba\u8a8d\u4e3b\u6a5f\u540d\u7a31\u662f\u5426\u6b63\u78ba\u3002\u8acb\u59cb\u7d42\u4f7f\u7528\u670d\u52d9\u5546\u63d0\u4f9b\u7684 IP \u4f4d\u5740\u6216\u4e3b\u6a5f\u540d\u7a31\u3002\u5982\u679c\u4f7f\u7528\u932f\u8aa4\uff0c\u5c31\u53ef\u80fd\u6703\u770b\u5230\u5982 connection refused\uff08\u9023\u7dda\u88ab\u62d2\u7d55\uff09\u4e4b\u985e\u7684\u932f\u8aa4\u3002<\/p>\n<ul>\n<li>\n<p>\u4e3b\u6a5f\u540d\u7a31\u62fc\u5beb\u932f\u8aa4\u6703\u5c0e\u81f4\u7121\u6cd5\u5b58\u53d6\u3002<\/p>\n<\/li>\n<li>\n<p>Ping \u53ef\u4ee5\u5e6b\u52a9\u4f60\u6e2c\u8a66\u4f3a\u670d\u5668\u662f\u5426\u6709\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>DNS \u6aa2\u67e5\u5de5\u5177\u53ef\u4ee5\u78ba\u8a8d\u4e3b\u6a5f\u540d\u7a31\u662f\u5426\u6709\u6548\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u900f\u904e\u57f7\u884c\u9019\u4e9b\u7dca\u6025\u8655\u7406\u6b65\u9a5f\uff0c\u4f60\u901a\u5e38\u53ef\u4ee5\u8f03\u5feb\u627e\u51fa\u70ba\u4ec0\u9ebc\u7121\u6cd5\u900f\u904e SSH \u767b\u5165\u4f3a\u670d\u5668\u3002\u9019\u4e9b\u6aa2\u67e5\u53ef\u4ee5\u7bc0\u7701\u6642\u9593\uff0c\u4e5f\u80fd\u5e6b\u52a9\u4f60\u907f\u514d\u904e\u65e9\u9032\u5165\u66f4\u8907\u96dc\u7684\u6392\u969c\u6d41\u7a0b\u3002<\/p>\n<h2>\u6392\u67e5 SSH \u9023\u7dda\u554f\u984c<\/h2>\n<p>\u7576\u4f60\u7684\u4f3a\u670d\u5668\u7121\u6cd5\u900f\u904e SSH \u9023\u7dda\u6642\uff0c\u4f60\u9700\u8981\u627e\u51fa\u554f\u984c\u7a76\u7adf\u5f9e\u54ea\u88e1\u958b\u59cb\u3002\u4f60\u53ef\u4ee5\u6aa2\u67e5\u554f\u984c\u662f\u4f86\u81ea DNS\u3001\u7db2\u8def\uff0c\u9084\u662f\u7528\u6236\u7aef\u8a2d\u5b9a\u3002\u8acb\u4f9d\u7167\u4ee5\u4e0b\u6b65\u9a5f\u6392\u67e5 SSH \u9023\u7dda\u554f\u984c\u4e26\u4fee\u5fa9\u76f8\u95dc\u6545\u969c\u3002<\/p>\n<h3>\u6e2c\u8a66\u4e3b\u6a5f\u540d\u7a31\u89e3\u6790<\/h3>\n<p>\u9996\u5148\u6aa2\u67e5\u4f60\u7684\u96fb\u8166\u662f\u5426\u80fd\u5920\u89e3\u6790\u4f3a\u670d\u5668\u4e3b\u6a5f\u540d\u7a31\u3002\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f\u4e3b\u6a5f\u540d\u7a31\u800c\u4e0d\u662f IP \u4f4d\u5740\uff0c\u90a3\u9ebc\u4f60\u7684\u7cfb\u7d71\u5fc5\u9808\u5148\u5c07\u5176\u8f49\u63db\u70ba\u6b63\u78ba\u7684 IP\u3002\u6709\u6642\uff0cDNS \u554f\u984c\u6703\u5c0e\u81f4 connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\u6216 connection refused\uff08\u9023\u7dda\u88ab\u62d2\u7d55\uff09\u3002<\/p>\n<ul>\n<li>\n<p>\u78ba\u4fdd\u4f60\u5df2\u7d93\u70ba\u7ba1\u7406\u4ecb\u9762\u548c\u8cc7\u6599\u4ecb\u9762\u90fd\u8a2d\u5b9a\u4e86 DNS \u4f3a\u670d\u5668\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4f60\u4f7f\u7528\u8a3a\u65b7\u4ecb\u9762\u9032\u884c\u67e5\u8a62\uff0c\u8acb\u78ba\u8a8d\u8a72\u4ecb\u9762\u5df2\u5206\u914d IP \u4f4d\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5617\u8a66 ping \u6bcf\u4e00\u500b DNS \u4f3a\u670d\u5668\u7684 IP \u4f4d\u5740\uff0c\u67e5\u770b\u5b83\u5011\u662f\u5426\u6709\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c ping \u6b63\u5e38\u4f46\u540d\u7a31\u89e3\u6790\u5931\u6557\uff0c\u8acb\u6aa2\u67e5\u4f60\u7684\u5b58\u53d6\u63a7\u5236\u898f\u5247\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c ping \u6b63\u5e38\u3001\u8def\u7531\u6b63\u78ba\u4e14\u5b58\u53d6\u63a7\u5236\u4e5f\u6c92\u6709\u554f\u984c\uff0c\u90a3\u9ebc DNS \u4f3a\u670d\u5668\u53ef\u80fd\u4e26\u672a\u4fdd\u5b58\u8a72\u5b8c\u6574\u4e3b\u6a5f\u540d\u7a31\u7684\u5c0d\u61c9\u8a18\u9304\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p><strong>\u8aaa\u660e\uff1a<\/strong>\u5982\u679c\u4f60\u80fd\u89e3\u6790\u51fa\u540d\u7a31\uff0c\u4f46\u5f97\u5230\u7684 IP \u4f4d\u5740\u4e26\u4e0d\u662f\u6700\u65b0\u7684\uff0c\u90a3\u9ebc\u7cfb\u7d71\u53ef\u80fd\u6b63\u5728\u4f7f\u7528\u5feb\u53d6\u7684 DNS \u8a18\u9304\u3002\u9019\u6703\u5c0e\u81f4\u986f\u793a\u904e\u671f IP \u4f4d\u5740\uff0c\u5f9e\u800c\u9020\u6210\u9023\u7dda\u5931\u6557\u3002<\/p>\n<\/blockquote>\n<h3>\u4f7f\u7528 Ping \u548c Telnet \u9032\u884c\u7db2\u8def\u6aa2\u67e5<\/h3>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u7c21\u55ae\u7684\u7db2\u8def\u5de5\u5177\u4f86\u6e2c\u8a66\u4f60\u7684\u96fb\u8166\u80fd\u5426\u5b58\u53d6\u4f3a\u670d\u5668\u3002ping \u6307\u4ee4\u7528\u65bc\u6aa2\u67e5\u4f3a\u670d\u5668\u662f\u5426\u56de\u61c9\u7db2\u8def\u8acb\u6c42\uff1btelnet \u6307\u4ee4\u5247\u7528\u65bc\u6e2c\u8a66 SSH \u9023\u63a5\u57e0\u662f\u5426\u958b\u653e\u4e26\u63a5\u53d7\u9023\u7dda\u3002<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528 <code>ping &lt;hostname or IP&gt;<\/code> \u67e5\u770b\u4f3a\u670d\u5668\u662f\u5426\u6709\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c ping \u5931\u6557\uff0c\u53ef\u80fd\u662f\u7db2\u8def\u554f\u984c\uff0c\u4e5f\u53ef\u80fd\u662f\u4f3a\u670d\u5668\u96e2\u7dda\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>telnet &lt;hostname or IP&gt; 22<\/code> \u6aa2\u67e5\u9023\u63a5\u57e0\u662f\u5426\u958b\u653e\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c telnet \u7121\u6cd5\u9023\u7dda\uff0c\u53ef\u80fd\u662f\u9632\u706b\u7246\u963b\u64cb\u4e86\u8a72\u9023\u63a5\u57e0\uff0c\u6216\u8005 SSH \u670d\u52d9\u6c92\u6709\u57f7\u884c\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p><strong>\u63d0\u793a\uff1a<\/strong>\u5982\u679c ping \u6b63\u5e38\u4f46 telnet \u5931\u6557\uff0c\u8acb\u512a\u5148\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\u6216 SSH \u670d\u52d9\u72c0\u614b\u3002<\/p>\n<\/blockquote>\n<h3>\u5206\u6790 SSH \u7528\u6236\u7aef\u65e5\u8a8c<\/h3>\n<p>\u4f60\u7684 SSH \u7528\u6236\u7aef\u6703\u63d0\u4f9b\u9023\u7dda\u904e\u7a0b\u4e2d\u51fa\u73fe\u554f\u984c\u7684\u7dda\u7d22\u3002\u4f60\u53ef\u4ee5\u555f\u7528\u8a73\u7d30\u6a21\u5f0f\u4f86\u67e5\u770b\u66f4\u5177\u9ad4\u7684\u932f\u8aa4\u8cc7\u8a0a\u3002\u9019\u6709\u52a9\u65bc\u5224\u65b7\u554f\u984c\u51fa\u5728\u8eab\u5206\u9a57\u8b49\u3001\u7db2\u8def\u9084\u662f\u8a2d\u5b9a\u65b9\u9762\u3002<\/p>\n<ul>\n<li>\n<p>\u57f7\u884c <code>ssh -v user@hostname<\/code> \u4ee5\u53d6\u5f97\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c0b\u627e\u8af8\u5982 connection refused\uff08\u9023\u7dda\u88ab\u62d2\u7d55\uff09\u3001connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\u6216 authentication failed\uff08\u8eab\u5206\u9a57\u8b49\u5931\u6557\uff09\u4e4b\u985e\u7684\u8a0a\u606f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u770b\u5230 connection refused\uff08\u9023\u7dda\u88ab\u62d2\u7d55\uff09\uff0c\u8868\u793a\u4f3a\u670d\u5668\u53ef\u80fd\u6c92\u6709\u57f7\u884c SSH \u670d\u52d9\uff0c\u6216\u8005\u9632\u706b\u7246\u963b\u64cb\u4e86\u9023\u63a5\u57e0\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u770b\u5230 connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\uff0c\u8868\u793a\u53ef\u80fd\u662f\u7db2\u8def\u963b\u65b7\u4e86\u9023\u7dda\uff0c\u6216\u8005\u4f3a\u670d\u5668\u5df2\u7576\u6a5f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u770b\u5230 authentication failed\uff08\u8eab\u5206\u9a57\u8b49\u5931\u6557\uff09\uff0c\u8acb\u6aa2\u67e5\u4f7f\u7528\u8005\u540d\u7a31\u3001\u5bc6\u78bc\u6216\u91d1\u9470\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u900f\u904e\u9019\u4e9b\u6b65\u9a5f\uff0c\u4f60\u53ef\u4ee5\u9010\u6b65\u7e2e\u5c0f SSH \u9023\u7dda\u554f\u984c\u7684\u7bc4\u570d\u3002\u4f60\u5c07\u5224\u65b7\u554f\u984c\u7a76\u7adf\u4f86\u81ea DNS\u3001\u7db2\u8def\u9084\u662f\u7528\u6236\u7aef\u8a2d\u5b9a\u3002\u9019\u7a2e\u65b9\u5f0f\u80fd\u7bc0\u7701\u6642\u9593\uff0c\u4e26\u5e6b\u52a9\u4f60\u66f4\u5feb\u4fee\u5fa9\u554f\u984c\u3002<\/p>\n<h2>\u4fee\u5fa9\u5e38\u898b SSH \u554f\u984c<\/h2>\n<p>\u7576\u4f60\u767c\u73fe\u4f3a\u670d\u5668\u7121\u6cd5\u9023\u7dda\u6642\uff0c\u9700\u8981\u6aa2\u67e5\u4e00\u4e9b\u6700\u5e38\u898b\u3001\u6703\u963b\u6b62 SSH \u5b58\u53d6\u7684\u554f\u984c\u3002\u4f9d\u7167\u4ee5\u4e0b\u6b65\u9a5f\uff0c\u8a31\u591a\u554f\u984c\u90fd\u53ef\u4ee5\u5f97\u5230\u89e3\u6c7a\u3002<\/p>\n<h3>\u6aa2\u67e5 SSH \u670d\u52d9\u72c0\u614b<\/h3>\n<p>\u9996\u5148\u4f60\u61c9\u78ba\u8a8d\u4f3a\u670d\u5668\u4e0a\u7684 SSH \u670d\u52d9\u662f\u5426\u6b63\u5728\u57f7\u884c\u3002\u5982\u679c\u670d\u52d9\u5df2\u505c\u6b62\u6216\u7576\u6389\uff0c\u4f60\u5c07\u7121\u6cd5\u9023\u7dda\u3002\u8acb\u767b\u5165\u4f60\u7684\u4f3a\u670d\u5668\u79df\u7528\u63a7\u5236\u53f0\uff0c\u6216\u4f7f\u7528\u53ef\u7528\u7684\u4e3b\u63a7\u53f0\u9032\u884c\u64cd\u4f5c\u3002\u57f7\u884c\u4ee5\u4e0b\u6307\u4ee4\u6aa2\u67e5\u670d\u52d9\u72c0\u614b\uff1a<\/p>\n<pre><code>sudo systemctl status ssh<\/code><\/pre>\n<p>\u5982\u679c\u670d\u52d9\u672a\u8655\u65bc\u555f\u7528\u72c0\u614b\uff0c\u53ef\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u555f\u52d5\uff1a<\/p>\n<pre><code>sudo systemctl start ssh<\/code><\/pre>\n<p>\u5982\u679c\u670d\u52d9\u672a\u57f7\u884c\uff0c\u4f60\u53ef\u80fd\u6703\u770b\u5230 connection refused\uff08\u9023\u7dda\u88ab\u62d2\u7d55\uff09\u6216 connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\u7b49\u932f\u8aa4\u3002\u4e0b\u8868\u5217\u51fa\u4e86\u5e38\u898b\u932f\u8aa4\u53ca\u5176\u542b\u7fa9\uff1a<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n    <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u932f\u8aa4\u985e\u578b<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e3b\u6a5f\u540d\u7a31\u89e3\u6790<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7576 SSH \u4e3b\u6a5f\u7121\u6cd5\u5c0d\u61c9\u5230\u7db2\u8def\u4f4d\u5740\u6642\u6703\u51fa\u73fe\u6b64\u985e\u932f\u8aa4\uff0c\u901a\u5e38\u8207 DNS \u554f\u984c\u6709\u95dc\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9023\u7dda\u903e\u6642<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7528\u6236\u7aef\u5728\u903e\u6642\u6642\u9593\u5167\u672a\u6536\u5230\u4f3a\u670d\u5668\u56de\u61c9\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9023\u7dda\u88ab\u62d2\u7d55<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9023\u7dda\u8acb\u6c42\u5df2\u5230\u9054 SSH \u4e3b\u6a5f\uff0c\u4f46\u4e3b\u6a5f\u672a\u63a5\u53d7\u8a72\u9023\u7dda\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p><strong>\u63d0\u793a\uff1a<\/strong>\u5982\u679c\u4f60\u91cd\u65b0\u555f\u52d5 SSH \u670d\u52d9\u5f8c\u4ecd\u7136\u7121\u6cd5\u9023\u7dda\uff0c\u8acb\u6aa2\u67e5\u65e5\u8a8c\u4ee5\u53d6\u5f97\u66f4\u591a\u7d30\u7bc0\u3002\u4f7f\u7528 <code>journalctl -u ssh<\/code> \u67e5\u770b\u6700\u8fd1\u7684\u65e5\u8a8c\u8cc7\u8a0a\u3002<\/p>\n<\/blockquote>\n<h3>\u6aa2\u67e5\u9632\u706b\u7246\u548c\u9023\u63a5\u57e0\u8a2d\u5b9a<\/h3>\n<p>\u9632\u706b\u7246\u53ef\u4ee5\u4fdd\u8b77\u4f60\u7684\u4f3a\u670d\u5668\uff0c\u4f46\u5982\u679c\u8a2d\u5b9a\u4e0d\u6b63\u78ba\uff0c\u4e5f\u6703\u963b\u6b62 SSH\u3002\u4f60\u9700\u8981\u78ba\u4fdd 22 \u9023\u63a5\u57e0\u5df2\u958b\u653e\u3002\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\uff1a<\/p>\n<pre><code>sudo iptables -L -n<\/code><\/pre>\n<p>\u6216\u8005\uff0c\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f firewalld\uff1a<\/p>\n<pre><code>sudo firewall-cmd --list-all<\/code><\/pre>\n<p>\u6aa2\u67e5\u662f\u5426\u5b58\u5728\u5141\u8a31 22 \u9023\u63a5\u57e0\u6d41\u91cf\u901a\u904e\u7684\u898f\u5247\u3002\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f\u5176\u4ed6\u9023\u63a5\u57e0\uff0c\u8acb\u6aa2\u67e5\u5c0d\u61c9\u9023\u63a5\u57e0\u3002\u5982\u679c\u4f60\u770b\u5230 connection timeout\uff08\u9023\u7dda\u903e\u6642\uff09\uff0c\u8868\u793a\u9632\u706b\u7246\u53ef\u80fd\u963b\u64cb\u4e86\u8a72\u9023\u63a5\u57e0\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u65b0\u589e\u4e00\u689d\u5141\u8a31 SSH \u7684\u898f\u5247\uff1a<\/p>\n<pre><code>sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT<\/code><\/pre>\n<blockquote>\n<p><strong>\u8aaa\u660e\uff1a<\/strong>\u4e00\u4e9b\u96f2\u7aef\u670d\u52d9\u5546\u5728\u63a7\u5236\u53f0\u4e2d\u9084\u63d0\u4f9b\u7368\u7acb\u7684\u9632\u706b\u7246\u8a2d\u5b9a\u3002\u8acb\u52d9\u5fc5\u540c\u6642\u6aa2\u67e5\u4f3a\u670d\u5668\u672c\u6a5f\u9632\u706b\u7246\u548c\u670d\u52d9\u5546\u7aef\u9632\u706b\u7246\u3002<\/p>\n<\/blockquote>\n<h3>\u6aa2\u67e5 SSH \u8a2d\u5b9a\u6a94<\/h3>\n<p>SSH \u8a2d\u5b9a\u6a94\u6c7a\u5b9a\u4e86\u670d\u52d9\u7684\u904b\u4f5c\u65b9\u5f0f\u3002\u9019\u500b\u6a94\u6848\u4e2d\u7684\u932f\u8aa4\u8a2d\u5b9a\u53ef\u80fd\u5c0e\u81f4\u4f60\u7121\u6cd5\u9023\u7dda\u3002\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u958b\u555f\u8a2d\u5b9a\u6a94\uff1a<\/p>\n<pre><code>sudo nano \/etc\/ssh\/sshd_config<\/code><\/pre>\n<p>\u8acb\u6aa2\u67e5\u4ee5\u4e0b\u5e38\u898b\u554f\u984c\uff1a<\/p>\n<ul>\n<li>\n<p><code>Port 22<\/code> \u9019\u4e00\u884c\u61c9\u8207\u4f60\u5be6\u969b\u4f7f\u7528\u7684\u9023\u63a5\u57e0\u4e00\u81f4\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u5141\u8a31 root \u767b\u5165\uff0c<code>PermitRootLogin<\/code> \u61c9\u8a2d\u5b9a\u70ba <code>yes<\/code> \u6216 <code>prohibit-password<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4f60\u4f7f\u7528\u5bc6\u78bc\u767b\u5165\uff0c<code>PasswordAuthentication<\/code> \u61c9\u8a2d\u5b9a\u70ba <code>yes<\/code>\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4fee\u6539\u5b8c\u6210\u5f8c\uff0c\u91cd\u65b0\u555f\u52d5\u670d\u52d9\uff1a<\/p>\n<pre><code>sudo systemctl restart ssh<\/code><\/pre>\n<blockquote>\n<p><strong>\u63d0\u9192\uff1a<\/strong>\u5728\u4fee\u6539\u8a2d\u5b9a\u6a94\u4e4b\u524d\uff0c\u8acb\u52d9\u5fc5\u5148\u505a\u597d\u5099\u4efd\u3002\u932f\u8aa4\u7684\u8a2d\u5b9a\u53ef\u80fd\u6703\u628a\u4f60\u81ea\u5df1\u9396\u5728\u4f3a\u670d\u5668\u4e4b\u5916\u3002<\/p>\n<\/blockquote>\n<h3>\u8fa8\u8b58\u6700\u8fd1\u7684\u8b8a\u66f4<\/h3>\n<p>\u8acb\u56de\u60f3\u4e00\u4e0b\uff0c\u5728\u554f\u984c\u51fa\u73fe\u4e4b\u524d\u4f60\u505a\u904e\u54ea\u4e9b\u66f4\u6539\u3002\u8fd1\u671f\u7684\u66f4\u65b0\u6216\u8a2d\u5b9a\u8abf\u6574\u5f88\u53ef\u80fd\u6703\u7834\u58de SSH \u5b58\u53d6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u80fd\u5f71\u97ff SSH \u7684\u8b8a\u66f4\uff1a<\/p>\n<ul>\n<li>\n<p>\u983b\u5bec\u9650\u5236\u53ef\u80fd\u6703\u62d6\u6162\u6a94\u6848\u50b3\u8f38\u901f\u5ea6\uff0c\u8b93\u4f60\u8aa4\u4ee5\u70ba\u4f3a\u670d\u5668\u6c92\u6709\u56de\u61c9\u3002<\/p>\n<\/li>\n<li>\n<p>\u8b8a\u66f4\u865b\u64ec\u6a94\u6848\u7cfb\u7d71\u53ef\u80fd\u6703\u6539\u8b8a\u76ee\u9304\u8def\u5f91\uff0c\u9032\u800c\u963b\u7919\u5b58\u53d6\u3002<\/p>\n<\/li>\n<li>\n<p>\u5347\u7d1a\u6216\u964d\u7d1a\u53ef\u80fd\u6703\u9020\u6210\u7248\u672c\u4e0d\u76f8\u5bb9\u3002<\/p>\n<\/li>\n<li>\n<p>\u5207\u63db\u5230 IPv6 \u4f46\u672a\u6b63\u78ba\u8a2d\u5b9a\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u903e\u6642\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4f60\u9084\u61c9\u6aa2\u67e5\u4ee5\u4e0b\u5177\u9ad4\u8981\u6c42\uff1a<\/p>\n<ol>\n<li>\n<p>\u9060\u7aef\u5b58\u53d6\u9700\u8981\u4f7f\u7528 SSH Version 2\u3002\u4f7f\u7528\u820a\u7248\u672c\u53ef\u80fd\u6703\u5c0e\u81f4\u9023\u7dda\u5931\u6557\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u4f60\u5f9e IPv6 \u7db2\u8def\u9023\u7dda\uff0c\u5fc5\u9808\u8a2d\u5b9a\u6b63\u78ba\u7684\u9078\u9805\u4ee5\u907f\u514d\u903e\u6642\u3002<\/p>\n<\/li>\n<\/ol>\n<blockquote>\n<p><strong>\u8b66\u793a\uff1a<\/strong>\u52d9\u5fc5\u4fdd\u7559\u4f60\u6240\u505a\u8b8a\u66f4\u7684\u8a18\u9304\u3002\u9019\u6a23\u5728 SSH \u505c\u6b62\u904b\u4f5c\u6642\uff0c\u4f60\u80fd\u66f4\u5feb\u627e\u5230\u539f\u56e0\u3002<\/p>\n<\/blockquote>\n<p>\u900f\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u4f60\u53ef\u4ee5\u4fee\u5fa9\u8a31\u591a\u5e38\u898b\u554f\u984c\uff0c\u4e5f\u80fd\u66f4\u6e05\u695a\u5730\u7406\u89e3\u70ba\u4ec0\u9ebc\u4f3a\u670d\u5668\u7121\u6cd5\u9023\u7dda\uff0c\u4ee5\u53ca\u5982\u4f55\u6062\u5fa9\u5b58\u53d6\u3002<\/p>\n<h2>\u7121\u6cd5 SSH \u767b\u5165\u6642\u7684\u6062\u5fa9\u65b9\u6848<\/h2>\n<p>\u7576\u4f60\u7121\u6cd5\u900f\u904e SSH \u767b\u5165\u4f3a\u670d\u5668\u6642\uff0c\u9700\u8981\u5118\u5feb\u63a1\u53d6\u63aa\u65bd\u4f86\u6062\u5fa9\u5b58\u53d6\u6b0a\u9650\u3002\u4f60\u6709\u591a\u7a2e\u6062\u5fa9\u65b9\u5f0f\u53ef\u4f9b\u9078\u64c7\uff0c\u5b83\u5011\u53ef\u4ee5\u5e6b\u52a9\u4f60\u91cd\u65b0\u53d6\u5f97\u63a7\u5236\u6b0a\uff0c\u4e26\u907f\u514d\u8cc7\u6599\u907a\u5931\u3002<\/p>\n<h3>\u900f\u904e\u4e3b\u63a7\u53f0\u6216\u5b89\u5168\u6a21\u5f0f\u5b58\u53d6<\/h3>\n<p>\u5927\u591a\u6578\u670d\u52d9\u5546\u90fd\u6703\u63d0\u4f9b\u57fa\u65bc\u7db2\u9801\u7684\u4e3b\u63a7\u53f0\u6216\u5b89\u5168\u6a21\u5f0f\u5b58\u53d6\u65b9\u5f0f\u3002\u5373\u4f7f\u4f3a\u670d\u5668\u7121\u6cd5\u900f\u904e\u4e00\u822c\u65b9\u5f0f\u9023\u7dda\uff0c\u4f60\u4ecd\u53ef\u4ee5\u4f7f\u7528\u9019\u4e9b\u5de5\u5177\u767b\u5165\u3002\u4e3b\u63a7\u53f0\u5141\u8a31\u4f60\u76f4\u63a5\u5728\u4f3a\u670d\u5668\u4e0a\u6392\u67e5\u554f\u984c\u3002\u5b89\u5168\u6a21\u5f0f\u901a\u5e38\u53ea\u8f09\u5165\u6700\u5c11\u7684\u670d\u52d9\uff0c\u9019\u6709\u52a9\u65bc\u4f60\u4fee\u5fa9\u8a2d\u5b9a\u932f\u8aa4\u6216\u91cd\u65b0\u555f\u52d5\u670d\u52d9\u3002<\/p>\n<blockquote>\n<p><strong>\u63d0\u793a\uff1a<\/strong>\u5982\u679c\u4f60\u7684\u670d\u52d9\u5546\u63d0\u4f9b\u6551\u63f4\u6a21\u5f0f\uff08rescue mode\uff09\uff0c\u53ef\u4f7f\u7528\u5b83\u639b\u8f09\u78c1\u789f\u4e26\u4fee\u5fa9\u6a94\u6848\uff0c\u800c\u7121\u9808\u555f\u52d5\u5b8c\u6574\u7cfb\u7d71\u3002<\/p>\n<\/blockquote>\n<h3>\u91cd\u8a2d Root \u5bc6\u78bc\u6216 SSH \u91d1\u9470<\/h3>\n<p>\u5982\u679c\u4f60\u61f7\u7591\u662f\u5bc6\u78bc\u6216\u91d1\u9470\u51fa\u4e86\u554f\u984c\uff0c\u53ef\u4ee5\u91cd\u8a2d root \u5bc6\u78bc\u6216\u7522\u751f\u65b0\u7684\u91d1\u9470\u3002\u8a31\u591a\u63a7\u5236\u53f0\u90fd\u63d0\u4f9b\u5bc6\u78bc\u91cd\u8a2d\u5de5\u5177\u3002\u4f60\u4e5f\u53ef\u4ee5\u5728\u820a\u91d1\u9470\u5931\u6548\u6642\u4e0a\u50b3\u65b0\u7684\u516c\u9470\u3002\u9019\u4e00\u6b65\u6709\u52a9\u65bc\u7e5e\u904e\u8eab\u5206\u9a57\u8b49\u932f\u8aa4\u4e26\u6062\u5fa9\u5b58\u53d6\u3002<\/p>\n<p><strong>\u91cd\u8a2d SSH \u91d1\u9470\u7684\u6b65\u9a5f\uff1a<\/strong><\/p>\n<ol>\n<li>\n<p>\u767b\u5165\u5230\u4f60\u7684\u63a7\u5236\u53f0\u3002<\/p>\n<\/li>\n<li>\n<p>\u627e\u5230\u91d1\u9470\u7ba1\u7406\u76f8\u95dc\u5340\u57df\u3002<\/p>\n<\/li>\n<li>\n<p>\u4e0a\u50b3\u65b0\u7684\u516c\u9470\uff0c\u6216\u91cd\u8a2d root \u5bc6\u78bc\u3002<\/p>\n<\/li>\n<li>\n<p>\u91cd\u65b0\u555f\u52d5\u670d\u52d9\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u5f9e\u5099\u4efd\u4e2d\u9084\u539f<\/h3>\n<p>\u5982\u679c SSH \u6545\u969c\u6392\u9664\u6c92\u6709\u6548\u679c\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5f9e\u5099\u4efd\u4e2d\u9084\u539f\u4f3a\u670d\u5668\u3002\u5099\u4efd\u53ef\u4ee5\u4fdd\u8b77\u4f60\u7684\u8cc7\u6599\uff0c\u4e26\u5e6b\u52a9\u4f60\u5f9e\u91cd\u5927\u932f\u8aa4\u4e2d\u6062\u5fa9\u3002\u8acb\u9078\u64c7\u6700\u8fd1\u4e14\u6c92\u6709\u8a72\u554f\u984c\u7684\u5099\u4efd\u3002\u4f60\u53ef\u4ee5\u9084\u539f\u6a94\u6848\u3001\u8a2d\u5b9a\uff0c\u751a\u81f3\u6574\u500b\u4f3a\u670d\u5668\u3002<\/p>\n<blockquote>\n<p><strong>\u8b66\u793a\uff1a<\/strong>\u9084\u539f\u4e4b\u524d\u52d9\u5fc5\u5148\u6aa2\u67e5\u5099\u4efd\u5167\u5bb9\uff0c\u78ba\u4fdd\u5176\u4e2d\u5305\u542b\u6240\u6709\u91cd\u8981\u8cc7\u6599\u3002<\/p>\n<\/blockquote>\n<h3>\u651c\u5e36\u8a3a\u65b7\u8cc7\u8a0a\u806f\u7d61\u6280\u8853\u652f\u63f4<\/h3>\n<p>\u5982\u679c\u4f60\u7121\u6cd5\u81ea\u884c\u89e3\u6c7a\u554f\u984c\uff0c\u8acb\u806f\u7d61\u4f60\u7684\u4f3a\u670d\u5668\u79df\u7528\u670d\u52d9\u5546\u6280\u8853\u652f\u63f4\u5718\u968a\u3002\u8acb\u4e8b\u5148\u6e96\u5099\u597d\u8a3a\u65b7\u8cc7\u8a0a\uff0c\u4f8b\u5982\u932f\u8aa4\u8a0a\u606f\u3001\u65e5\u8a8c\u4ee5\u53ca\u4f60\u5df2\u7d93\u5617\u8a66\u904e\u7684\u6b65\u9a5f\u3002\u6280\u8853\u652f\u63f4\u5718\u968a\u53ef\u4ee5\u5e6b\u52a9\u4f60\u9032\u4e00\u6b65\u6392\u67e5\u554f\u984c\uff0c\u4e26\u6307\u5c0e\u4f60\u5b8c\u6210\u6062\u5fa9\u3002<\/p>\n<p><strong>\u5efa\u8b70\u63d0\u4f9b\u7684\u8cc7\u8a0a\uff1a<\/strong><\/p>\n<ul>\n<li>\n<p>SSH \u7528\u6236\u7aef\u65e5\u8a8c<\/p>\n<\/li>\n<li>\n<p>\u4f3a\u670d\u5668\u72c0\u614b\u5831\u544a<\/p>\n<\/li>\n<li>\n<p>\u9632\u706b\u7246\u8a2d\u5b9a<\/p>\n<\/li>\n<li>\n<p>\u6700\u8fd1\u7684\u8b8a\u66f4<\/p>\n<\/li>\n<\/ul>\n<p>\u7576\u4f3a\u670d\u5668\u7121\u6cd5\u9023\u7dda\u6642\uff0c\u900f\u904e\u4ee5\u4e0a\u9019\u4e9b\u6062\u5fa9\u65b9\u6848\uff0c\u4f60\u901a\u5e38\u80fd\u5920\u89e3\u6c7a\u5927\u591a\u6578\u554f\u984c\u3002\u8acb\u4fdd\u6301\u51b7\u975c\uff0c\u4e26\u4f9d\u5e8f\u5617\u8a66\u6bcf\u4e00\u7a2e\u65b9\u6cd5\u4f86\u91cd\u65b0\u53d6\u5f97\u5b58\u53d6\u6b0a\u9650\u3002<\/p>\n<div class=\"qc-divider-wrapper\">\n<div class=\"qc-divider\" style=\"border-top-style: solid;width: 100%\"><\/div>\n<\/div>\n<p>\u4f9d\u7167\u9806\u5e8f\u9010\u6b65\u57f7\u884c\u6bcf\u4e00\u500b\u6392\u969c\u6b65\u9a5f\uff0c\u4f60\u5c31\u80fd\u66f4\u5feb\u89e3\u6c7a SSH \u554f\u984c\u3002\u8acb\u8a18\u9304\u932f\u8aa4\u8a0a\u606f\u548c\u6240\u505a\u7684\u66f4\u6539\u3002\u5982\u679c\u4f60\u7121\u6cd5\u81ea\u884c\u4fee\u5fa9\uff0c\u8acb\u4e8b\u5148\u6574\u7406\u597d\u8a73\u7d30\u8cc7\u8a0a\u4ee5\u4fbf\u806f\u7d61\u6280\u8853\u652f\u63f4\u3002\u5b9a\u671f\u5099\u4efd\u548c\u76e3\u63a7\u6709\u52a9\u65bc\u9810\u9632\u672a\u4f86\u518d\u6b21\u51fa\u73fe\u985e\u4f3c\u554f\u984c\u3002\u4f60\u53ef\u4ee5\u63a1\u7528\u4ee5\u4e0b\u5099\u4efd\u7b56\u7565\uff1a<\/p>\n<ul>\n<li>\n<p>\u7570\u5730\u5099\u4efd\u53ef\u4ee5\u5728\u707d\u96e3\u767c\u751f\u6642\u4fdd\u8b77\u4f60\u7684\u8cc7\u6599\u3002<\/p>\n<\/li>\n<li>\n<p>\u672c\u6a5f\u5099\u4efd\u8cc7\u6599\u593e\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5feb\u901f\u9084\u539f\u6a94\u6848\u3002<\/p>\n<\/li>\n<li>\n<p>\u7d50\u69cb\u5316\u7684\u5099\u4efd\u7b56\u7565\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u969c\u8cc7\u6599\u5b89\u5168\u3002<\/p>\n<\/li>\n<\/ul>\n<p>SSH \u5b89\u5168\u8207\u76e3\u63a7\u65b9\u9762\u7684\u696d\u754c\u6a19\u6e96\u5305\u62ec\uff1a<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n    <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u529f\u80fd<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5f37\u52a0\u5bc6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u50b3\u8f38\u904e\u7a0b\u4e2d\u4fdd\u8b77\u8cc7\u6599\u5b89\u5168\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f3a\u670d\u5668\u8eab\u5206\u9a57\u8b49<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u5efa\u7acb\u9023\u7dda\u524d\u9a57\u8b49\u4f3a\u670d\u5668\u8eab\u5206\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5b8c\u6574\u6027\u4fdd\u8b77<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u78ba\u4fdd\u8cc7\u6599\u5728\u50b3\u8f38\u904e\u7a0b\u4e2d\u672a\u88ab\u7ac4\u6539\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u58d3\u7e2e<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u900f\u904e\u58d3\u7e2e\u8cc7\u6599\u4f86\u63d0\u5347\u6548\u80fd\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u91d1\u9470\u4ea4\u63db\u65b9\u6cd5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u78ba\u4fdd\u91d1\u9470\u4ea4\u63db\u904e\u7a0b\u5b89\u5168\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u516c\u958b\u91d1\u9470\u6f14\u7b97\u6cd5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f7f\u7528\u516c\u958b\u91d1\u9470\u5bc6\u78bc\u5b78\u9032\u884c\u8eab\u5206\u9a57\u8b49\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5c0d\u7a31\u5f0f\u52a0\u5bc6\u6f14\u7b97\u6cd5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f7f\u7528\u5c0d\u7a31\u5f0f\u6f14\u7b97\u6cd5\u5c0d\u8cc7\u6599\u9032\u884c\u52a0\u5bc6\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8a0a\u606f\u9a57\u8b49\u6f14\u7b97\u6cd5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u78ba\u8a8d\u8a0a\u606f\u7684\u771f\u5be6\u6027\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u96dc\u6e4a\u6f14\u7b97\u6cd5<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u900f\u904e\u96dc\u6e4a\u6aa2\u67e5\u8cc7\u6599\u5b8c\u6574\u6027\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>\u5e38\u898b\u554f\u984c<\/h2>\n<h3>\u5982\u679c\u4f60\u5fd8\u8a18\u4e86 SSH \u5bc6\u78bc\uff0c\u8a72\u600e\u9ebc\u8fa6\uff1f<\/h3>\n<p>\u4f60\u53ef\u4ee5\u900f\u904e\u4f3a\u670d\u5668\u79df\u7528\u63a7\u5236\u53f0\u91cd\u8a2d\u5bc6\u78bc\u3002\u8acb\u67e5\u627e\u5bc6\u78bc\u91cd\u8a2d\u9078\u9805\u3002\u5982\u679c\u4f60\u4f7f\u7528\u7684\u662f\u91d1\u9470\u9a57\u8b49\uff0c\u4e5f\u53ef\u4ee5\u4e0a\u50b3\u65b0\u7684\u516c\u9470\u3002\u5b8c\u6210\u8b8a\u66f4\u5f8c\uff0c\u8acb\u91cd\u65b0\u555f\u52d5\u670d\u52d9\u3002<\/p>\n<h3>\u5982\u4f55\u6aa2\u67e5 SSH \u9023\u63a5\u57e0\u662f\u5426\u958b\u653e\uff1f<\/h3>\n<p>\u57f7\u884c <code>telnet &lt;server IP&gt; 22<\/code>\uff0c\u6216\u8005\u67e5\u770b\u4f60\u7684\u4f3a\u670d\u5668\u79df\u7528\u9632\u706b\u7246\u8a2d\u5b9a\u3002\u5982\u679c\u80fd\u5920\u5efa\u7acb\u9023\u7dda\uff0c\u5247\u8868\u793a\u9023\u63a5\u57e0\u5df2\u958b\u653e\uff1b\u5982\u679c\u4e0d\u80fd\uff0c\u8acb\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\u4e26\u958b\u653e 22 \u9023\u63a5\u57e0\u3002<\/p>\n<h3>\u70ba\u4ec0\u9ebc SSH 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