{"id":6058,"date":"2026-01-06T07:29:44","date_gmt":"2026-01-05T23:29:44","guid":{"rendered":"https:\/\/www.elite.cloud\/post\/aws-ec2-key-pairs-%e6%9b%b4%e6%8f%9b%e5%af%a6%e5%8b%99%e6%8c%87%e5%8d%97%ef%bc%9a%e4%b8%8d%e4%b8%ad%e6%96%b7%e6%9c%8d%e5%8b%99%e4%b9%9f%e8%83%bd%e5%ae%89%e5%85%a8%e6%8f%9b-key\/"},"modified":"2026-01-20T13:49:49","modified_gmt":"2026-01-20T05:49:49","slug":"how-to-change-ec2-key-pair-practical-guide","status":"publish","type":"post","link":"https:\/\/www.elite.cloud\/zh\/post\/how-to-change-ec2-key-pair-practical-guide\/","title":{"rendered":"AWS EC2 Key Pairs \u66f4\u63db\u5be6\u52d9\u6307\u5357\uff1a\u4e0d\u4e2d\u65b7\u670d\u52d9\u4e5f\u80fd\u5b89\u5168\u63db Key"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"EC2 \u91d1\u9470\u4e0d\u898b\u3001\u7591\u4f3c\u5916\u6d29\uff1f\u9019\u6a23\u63db Key\uff0c\u670d\u52d9\u4e0d\u7528\u505c\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/MPgmIbiHhxs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>\u7576\u91d1\u9470\u907a\u5931\u3001\u7591\u4f3c\u5916\u6d29\uff0c\u6216\u57fa\u65bc\u8cc7\u5b89\u9700\u6c42\u9700\u8981\u5b9a\u671f\u8f2a\u66ff\u6642\uff0c\u66f4\u63db EC2 Key Pairs \u662f\u5f88\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u4f46 AWS \u4e26\u4e0d\u63d0\u4f9b\u300c\u4e00\u9375\u76f4\u63a5\u66ff\u63db\u300d\u65e2\u6709 instance key pair \u7684\u529f\u80fd\uff0c\u5be6\u969b\u6d41\u7a0b\u6703\u4f9d instance \u76ee\u524d\u662f\u57f7\u884c\u4e2d\u3001\u5df2\u505c\u6b62\uff0c\u6216\u5b8c\u5168\u7121\u6cd5\u5b58\u53d6\u800c\u6709\u6240\u4e0d\u540c\u3002  <\/p>\n\n\n\n<p>\u672c\u6587\u5c07\u5e36\u4f60\u5be6\u969b\u4e86\u89e3<strong>\u5169\u7a2e\u5728\u771f\u5be6\u74b0\u5883\u4e2d\u6700\u5e38\u7528\u3001\u4e5f\u6700\u53ef\u9760\u7684 EC2 Key Pairs \u66f4\u63db\u65b9\u6cd5<\/strong>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4ec0\u9ebc\u662f EC2 \u91d1\u9470\u5c0d\uff08EC2 Key Pairs\uff09\uff1f<\/strong><\/h2>\n\n\n\n<p><a href=\"https:\/\/aws.amazon.com\/ec2\/\" target=\"_blank\" rel=\"noopener\" title=\"EC2\">EC2<\/a> \u91d1\u9470\u5c0d\u662f\u7528\u4f86\u5b89\u5168\u9a57\u8b49\u4f60\u9023\u7dda\u5230 Linux \u6216 Windows EC2 \u57f7\u884c\u500b\u9ad4\u7684\u6a5f\u5236\u3002\u5b83\u5305\u542b\u4e00\u7d44\u516c\u6709\u91d1\u9470\uff08public key\uff0c\u5132\u5b58\u5728 instance \u4e0a\uff09\uff0c\u4ee5\u53ca\u4e00\u7d44\u79c1\u6709\u91d1\u9470\uff08private key\uff0c\u5efa\u7acb instance \u6642\u4e0b\u8f09\u4e26\u81ea\u884c\u4fdd\u5b58\uff09\u3002\u4e4b\u5f8c\u4f60\u5c31\u662f\u900f\u904e\u79c1\u6709\u91d1\u9470\u4f86\u767b\u5165\u8a72\u57f7\u884c\u500b\u9ad4\uff08instance\uff09\u3002  <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u66f4\u63db EC2 Key Pair \u524d\u4e00\u5b9a\u8981\u77e5\u9053\u7684\u91cd\u9ede<\/strong><\/h2>\n\n\n\n<p>\u5728\u958b\u59cb\u64cd\u4f5c\u524d\uff0c\u8acb\u5148\u78ba\u8a8d\u4ee5\u4e0b\u5e7e\u500b\u95dc\u9375\u4e8b\u5be6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f60<strong>\u7121\u6cd5<\/strong>\u5728 AWS Console \u4e2d\uff0c\u76f4\u63a5\u66ff\u4e00\u53f0\u300c\u6b63\u5728\u57f7\u884c\u4e2d\u300d\u7684 instance \u66f4\u63db key pair\u3002<\/li>\n\n\n\n<li><strong>Linux \u8207 Windows<\/strong> instance \u7684\u8655\u7406\u65b9\u5f0f\u4e0d\u540c\u3002<\/li>\n\n\n\n<li>\u4f60\u5fc5\u9808\u81f3\u5c11\u9084\u80fd\u5b58\u53d6 instance\uff0c\u6216\u6709\u6b0a\u9650\u5c07\u5b83\u505c\u6b62\u3002<\/li>\n\n\n\n<li>\u5728\u79fb\u9664\u820a key \u4e4b\u524d\uff0c\u4e00\u5b9a\u8981\u5148<strong>\u5efa\u7acb\u65b0\u7684 key pair<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u652f\u63f4\u7684 EC2 Key Pair \u66f4\u63db\u65b9\u5f0f\u7e3d\u89bd<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u60c5\u5883<\/strong><\/td><td><strong>\u5efa\u8b70\u65b9\u6cd5<\/strong><\/td><td><strong>\u53ef\u9760\u6027<\/strong><\/td><\/tr><tr><td>\u57f7\u884c\u500b\u9ad4\u6b63\u5728\u57f7\u884c\u4e14\u53ef\u5b58\u53d6<\/td><td>\u624b\u52d5\u66f4\u65b0 authorized_keys<\/td><td>\u4e00\u5b9a\u6210\u529f<\/td><\/tr><tr><td>\u5b8c\u5168\u5931\u53bb\u5b58\u53d6\u6b0a\u9650<\/td><td>Root volume recovery<\/td><td>\u4e00\u5b9a\u6210\u529f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u65b9\u6cd5\u4e00<\/strong>\uff1a<strong>\u66f4\u65b0 authorized_keys<\/strong><strong>\uff08\u6700\u4e3b\u8981\u3001\u4e5f\u662f\u6700\u5b89\u5168\u7684\u65b9\u6cd5\uff09<\/strong><\/h2>\n\n\n\n<p>\u53ea\u8981\u4f60\u9084\u80fd\u900f\u904e SSH \u767b\u5165\uff0c\u9019\u5c31\u662f<strong>\u6700\u7a69\u5b9a\u3001\u4e5f\u6700\u63a8\u85a6\u7684\u505a\u6cd5<\/strong>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u9069\u7528\u60c5\u5883<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u57f7\u884c\u500b\u9ad4\u6b63\u5728\u57f7\u884c\u4e2d<\/li>\n\n\n\n<li>\u4f60\u4ecd\u7136\u53ef\u4ee5\u7528\u820a\u7684 key \u900f\u904e SSH \u9023\u7dda\u767b\u5165<\/li>\n\n\n\n<li>\u76ee\u6a19\u662f Linux-based \u7684 instance\uff08Linux \u7cfb\u5217\u4f5c\u696d\u7cfb\u7d71\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b65\u9a5f 1\uff1a <\/strong><\/h3>\n\n\n\n<p>\u5148\u5efa\u7acb\u4e00\u7d44\u65b0\u7684 key pair\u3002\u4f60\u53ef\u4ee5\u7528 AWS Console \u6216\u7b2c\u4e09\u65b9\u5de5\u5177\uff0c\u9019\u88e1\u4ee5 AWS Console \u70ba\u4f8b\uff1a\u9032\u5165 <strong>EC2 dashboard &gt; Network &amp; Security &gt; Key Pairs<\/strong>\uff0c\u9ede\u9078 <strong>Create key pair<\/strong>\u3002  <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"128\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_001.webp\" alt=\"\u900f\u904e EC2 Console \u5efa\u7acb EC2 \u91d1\u9470\u5c0d\" class=\"wp-image-5798\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_001.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_001-300x38.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_001-768x96.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u8f38\u5165 key pair \u540d\u7a31\uff0c\u5176\u9918\u8a2d\u5b9a\u7dad\u6301\u9810\u8a2d\u5373\u53ef\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"407\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_002.webp\" alt=\"\u5efa\u7acb\u65b0\u7684\u66ff\u4ee3\u7528 key pair\" class=\"wp-image-5800\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_002.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_002-300x119.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_002-768x305.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b65\u9a5f 2\uff1a<\/strong><\/h3>\n\n\n\n<p>\u73fe\u5728\uff0c\u5728\u7d42\u7aef\u6a5f\u4e2d\uff0c\u8b93\u6211\u5011\u4f7f\u7528\u525b\u525b\u5efa\u7acb\u7684 private key \u4f86\u7522\u751f\u4e00\u628a public key\u3002\u8acb\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u4f86\u5efa\u7acb public key\uff1a <strong>ssh-keygen -y -f replacement-key.pem &gt; replacement-key.pub<\/strong> \u3002\u5982\u679c\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u51fa\u73fe\u4efb\u4f55\u8b66\u544a\u8a0a\u606f\uff0c\u8acb\u4f7f\u7528\u6307\u4ee4 <strong>chmod 600 replacement-key.pem<\/strong> \u4f86\u66f4\u65b0 private key \u7684\u6b0a\u9650\u3002  <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"225\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_003.webp\" alt=\"\u7531 private key \u7522\u751f public key\" class=\"wp-image-5802\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_003.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_003-300x66.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_003-768x169.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u53d6\u5f97 public key \u4e4b\u5f8c\uff0c\u4f60\u9700\u8981\u4f7f\u7528\u65e2\u6709\u7684 private key \u9023\u7dda\u5230 EC2 instance\uff0c\u6307\u4ee4\u5982\u4e0b\uff1a `<strong>ssh -i old-key.pem user@instance-ip<\/strong>`\u3002 \u63a5\u8457\u958b\u555f\u4f4d\u65bc `<strong>~\/.ssh\/authorized_keys<\/strong>`. \u7684 authorized key \u6a94\u6848\uff0c\u5c07\u65b0\u7684 public key \u8cbc\u5165 <strong>authorized_keys<\/strong> \u6a94\u6848\u4e2d\uff0c\u4e26\u5132\u5b58\u3002  <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"484\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_004.webp\" alt=\"\u5c07\u65b0 public key \u52a0\u5165 EC2 instance\" class=\"wp-image-5804\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_004.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_004-300x142.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_004-768x363.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>\u6ce8\u610f<\/strong>\uff1a\u5982\u679c\u5728\u4f7f\u7528 SSH \u9023\u7dda\u6642\u770b\u5230\u4efb\u4f55\u8b66\u544a\u8a0a\u606f\uff0c\u8acb\u78ba\u8a8d\u5df2\u5c07 private key \u7684\u6b0a\u9650\u66f4\u65b0\u70ba <strong>chmod 600 old-key.pem<\/strong>. <\/p>\n\n\n\n<p>\u73fe\u5728\uff0c\u5617\u8a66\u4f7f\u7528\u65b0\u7684 private key \u9023\u7dda\u5230\u8a72 instance\u3002\u82e5\u9023\u7dda\u6210\u529f\uff0c\u8acb\u5c07 <strong>authorized_keys<\/strong> \u6a94\u6848\u4e2d\u539f\u672c\u7684\u7b2c\u4e00\u628a public key \u79fb\u9664\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"363\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_005.webp\" alt=\"\u4f7f\u7528\u65b0\u7684 private key \u9023\u7dda EC2\" class=\"wp-image-5806\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_005.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_005-300x106.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_005-768x272.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u53ea\u8981\u64cd\u4f5c\u6b63\u78ba\uff0c\u9019\u500b\u65b9\u6cd5\u53ef\u4ee5\u505a\u5230 \u96f6\u505c\u6a5f\u3002\u5207\u8a18\u4e00\u5b9a\u8981\u5148\u78ba\u8a8d\u65b0 key \u6b63\u5e38\u5f8c\uff0c\u518d\u79fb\u9664\u820a key\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-elite-cloud wp-block-embed-elite-cloud\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"zgRR77wMXV\"><a href=\"https:\/\/www.elite.cloud\/post\/how-to-change-ec2-instance-type\/\">How to Change EC2 Instance Type<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;How to Change EC2 Instance Type&#8221; &#8212; Elite Cloud\" src=\"https:\/\/www.elite.cloud\/post\/how-to-change-ec2-instance-type\/embed\/#?secret=rWRBlq0lCo#?secret=zgRR77wMXV\" data-secret=\"zgRR77wMXV\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u65b9\u6cd5\u4e8c\uff1aRoot Volume Recovery\uff08\u901a\u7528\u6551\u63f4\u65b9\u6cd5\uff09<\/strong><\/h2>\n\n\n\n<p><strong>\u7576\u4f60\u5b8c\u5168\u907a\u5931 key\u3001\u7121\u6cd5\u518d\u5b58\u53d6 instance \u6642<\/strong>\uff0c\u5c31\u6703\u4f7f\u7528\u9019\u500b\u65b9\u6cd5\u3002\u6b64\u6d41\u7a0b\u6703\u5148\u5c07\u539f\u672c instance \u7684\u78c1\u789f\uff08EBS\uff09\u62c6\u5378\u4e0b\u4f86\uff0c\u4e26\u5c07\u8a72\u78c1\u789f\u639b\u8f09\u5230\u4e00\u53f0\u65b0\u7684 EC2 instance \u4e0a\u3002\u5728\u65b0\u7684 EC2 instance \u4e2d\uff0c\u6211\u5011\u6703\u5c07\u78c1\u789f\u639b\u8f09\u8d77\u4f86\uff0c\u4e26\u5982\u540c\u524d\u4e00\u500b\u65b9\u6cd5\u6240\u505a\u7684\u65b9\u5f0f\uff0c\u76f4\u63a5\u4fee\u6539 public key\u3002\u5b8c\u6210 key \u66f4\u63db\u5f8c\uff0c\u6703\u518d\u5c07\u78c1\u789f\u5f9e\u65b0\u7684 EC2 instance \u4e0a\u62c6\u5378\uff0c\u4e26\u91cd\u65b0\u639b\u56de\u539f\u672c\u7684 instance\u3002    <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u9069\u7528\u60c5\u5883<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7121\u6cd5\u900f\u904e SSH \u9023\u7dda<\/li>\n\n\n\n<li>Instance \u5b8c\u5168\u7121\u6cd5\u767b\u5165<\/li>\n\n\n\n<li>\u6b63\u5f0f\u74b0\u5883\uff08Production\uff09\u7684\u7dca\u6025\u5fa9\u539f\u60c5\u5883<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u7bc4\u4f8b\u6307\u4ee4\uff08\u65bc\u6551\u63f4\u7528 instance \u4e0a\u57f7\u884c\uff09<\/strong><\/h3>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b65\u9a5f 1\uff1a<\/strong><\/h3>\n\n\n\n<p>\u5148\u505c\u6b62 EC2 instance\uff0c\u624d\u80fd\u62c6\u5378\u78c1\u789f\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"158\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_006.webp\" alt=\"\u505c\u6b62 EC2 instance\" class=\"wp-image-5808\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_006.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_006-300x46.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_006-768x119.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u900f\u904e <strong>Actions &gt; Storage &gt; Detach Volume<\/strong> \u62c6\u5378\u78c1\u789f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"212\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_007.webp\" alt=\"\u62c6\u5378 EC2 instance volume\" class=\"wp-image-5810\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_007.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_007-300x62.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_007-768x159.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u6703\u8b93\u4f60\u9078\u64c7\u4f60\u60f3\u62c6\u5378\u7684 volume\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"537\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_008.webp\" alt=\"\u62c6\u5378 EBS volume\" class=\"wp-image-5812\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_008.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_008-300x157.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_008-768x403.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b65\u9a5f 2\uff1a<\/strong><\/h3>\n\n\n\n<p>\u7528 <strong>Actions &gt; Storage &gt; Attach volume<\/strong> \u5c07\u8a72 EBS volume \u639b\u8f09\u5230\u65b0\u7684 EC2\uff08\u6551\u63f4\u6a5f\uff09\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"247\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_009.webp\" alt=\"\u5c07 EBS \u639b\u8f09\u5230\u6551\u63f4 EC2\" class=\"wp-image-5814\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_009.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_009-300x72.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_009-768x185.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u4f60\u5fc5\u9808\u78ba\u8a8d\u65b0\u5efa\u7acb\u7684 EC2 instance \u8207\u539f\u672c\u7684 EC2 instance \u4f4d\u65bc\u76f8\u540c\u7684 region \u8207\u76f8\u540c\u7684 availability zone\u3002\u5426\u5247\uff0c\u5728\u91cd\u65b0\u639b\u8f09\u6642\uff0c\u4f60\u5c07\u7121\u6cd5\u770b\u5230\u8a72\u78c1\u789f\uff08volume\uff09\u3002 <\/p>\n\n\n\n<p>\u63a5\u8457\u9078\u64c7\u8981\u639b\u8f09\u7684 volume \u8207 device name\uff08\u8a72\u78c1\u789f\u6703\u4ee5\u6b64\u540d\u7a31\u88ab\u639b\u8f09\uff09\uff0c\u7136\u5f8c\u9ede\u64ca \u300c<strong>Attach volume<\/strong>\u300d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"346\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_010.webp\" alt=\"\u9078\u64c7 volume \u548c\u88dd\u7f6e\u540d\u7a31\" class=\"wp-image-5816\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_010.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_010-300x101.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_010-768x260.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b65\u9a5f 3\uff1a<\/strong><\/h3>\n\n\n\n<p>\u767b\u5165\u65b0\u7684 EC2 instance\uff0c\u4e26\u5c07\u78c1\u789f\u639b\u8f09\u8d77\u4f86\u3002\u9996\u5148\uff0c\u4f7f\u7528\u6307\u4ee4 <strong>sudo mkdir \/mnt\/recovery<\/strong> \u5efa\u7acb\u4e00\u500b\u76ee\u9304\u3002\u63a5\u8457\u4f7f\u7528 <strong>lsblk -f <\/strong>\u67e5\u770b\u78c1\u789f\u5206\u5272\u8cc7\u8a0a\uff0c\u4e26\u9078\u64c7\u4e0d\u662f\u4e3b\u8981\u78c1\u789f\uff08primary volume\uff09\u7684\u90a3\u4e00\u500b\u3002\u4f60\u53ef\u4ee5\u5148\u78ba\u8a8d\u539f\u672c instance \u4f7f\u7528\u7684\u78c1\u789f\u540d\u7a31\uff0c\u518d\u9078\u64c7\u53e6\u4e00\u9846\u78c1\u789f\u3002   <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"392\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_011.webp\" alt=\"\u78ba\u8a8d\u65b0\u52a0\u5165\u7684\u78c1\u789f\" class=\"wp-image-5818\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_011.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_011-300x115.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_011-768x294.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u63a5\u4e0b\u4f86\uff0c\u4f7f\u7528\u6307\u4ee4 <strong>sudo mount \/dev\/xvdb1 \/mnt\/recovery\/<\/strong> \u4f86\u639b\u8f09\u8a72\u5206\u5272\u5340\u3002\u8acb\u52d9\u5fc5\u5148\u900f\u904e <strong>lsblk -f<\/strong> \u78ba\u8a8d\u5be6\u969b\u7684\u78c1\u789f\u540d\u7a31\uff1b\u5c0d\u65bc Linux \u7684\u4e3b\u8981\u5206\u5272\u5340\uff0c\u6a94\u6848\u7cfb\u7d71\u901a\u5e38\u6703\u662f ext4\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"246\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_012.webp\" alt=\"\u6aa2\u67e5\u78c1\u789f\u5206\u5272\u5340\u540d\u7a31\" class=\"wp-image-5820\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_012.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_012-300x72.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_012-768x185.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5b8c\u6210\u639b\u8f09\u5f8c\uff0c\u5373\u53ef\u4f7f\u7528\u6307\u4ee4 <strong>sudo vim \/mnt\/recovery\/home\/admin\/.ssh\/authorized_keys<\/strong> \u4f86\u4fee\u6539 authorized_keys\u3002\u6b64\u6b65\u9a5f\u4e2d\uff0c\u8acb\u5c07\u65b9\u6cd5\u4e00\u6240\u66f4\u63db\u7684 public key \u8cbc\u5165\u8a72\u6a94\u6848\u4e2d\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"142\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_013.webp\" alt=\"\u639b\u8f09\u78c1\u789f\u4e26\u4fee\u6539 public key\" class=\"wp-image-5822\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_013.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_013-300x42.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_013-768x107.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5b8c\u6210\u4e0a\u8ff0\u64cd\u4f5c\u5f8c\uff0c\u8acb\u4f7f\u7528\u6307\u4ee4 <strong>sudo umount \/mnt\/recovery<\/strong> \u5c07\u78c1\u789f\u5378\u8f09\u3002 <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6b65\u9a5f 4\uff1a<\/strong><\/h3>\n\n\n\n<p>\u73fe\u5728\uff0c\u8acb\u5c07\u8a72\u78c1\u789f\u5f9e\u65b0\u7684 EC2 instance \u4e0a\u62c6\u5378\uff0c\u4e26\u4f9d\u7167\u5148\u524d\u76f8\u540c\u7684\u6d41\u7a0b\uff0c\u91cd\u65b0\u639b\u8f09\u56de\u539f\u672c\u7684 EC2 instance\u3002\u5b8c\u6210\u78c1\u789f\u639b\u8f09\u5f8c\uff0c\u555f\u52d5\u8a72 EC2 instance\uff0c\u4f60\u61c9\u8a72\u5c31\u53ef\u4ee5\u900f\u904e SSH \u9023\u7dda\u767b\u5165\u8a72 instance\u3002 <\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"351\" src=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_014.webp\" alt=\"\u4f7f\u7528\u66f4\u63db\u5f8c\u7684 private key \u9023\u7dda\u81f3 EC2 instance\" class=\"wp-image-5824\" srcset=\"https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_014.webp 1024w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_014-300x103.webp 300w, https:\/\/www.elite.cloud\/wp-content\/uploads\/2026\/01\/How-to-Change-EC2-Key-Pair-Practical-Guide--elite-cloud_014-768x263.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5728\u9019\u500b\u65b9\u6cd5\u4e2d\uff0c\u4f60\u662f\u76f4\u63a5\u4fee\u6539\u78c1\u789f\u5167\u5bb9\uff0c\u5b8c\u5168\u7e5e\u904e SSH \u9032\u884c\u8655\u7406\uff0c\u56e0\u6b64\u6703\u7522\u751f\u505c\u6a5f\u6642\u9593\u3002\u5982\u679c\u4f60\u5e0c\u671b\u5c07\u505c\u6a5f\u6642\u9593\u964d\u5230\u6700\u4f4e\uff0c\u53ef\u4ee5\u5148\u5efa\u7acb\u4e00\u53f0 clone instance\uff0c\u5f85 SSH key \u5fa9\u539f\u5b8c\u6210\u5f8c\uff0c\u518d\u9032\u884c IP \u4f4d\u5740\u7684\u5207\u63db\u3002  <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u7d50\u8ad6<\/strong><\/h2>\n\n\n\n<p>\u66f4\u63db EC2 Key Pair \u4e26\u4e0d\u662f\u4e00\u500b\u55ae\u4e00\u7684 AWS \u64cd\u4f5c\uff0c\u800c\u662f\u4e00\u500b\u8207\u5b58\u53d6\u6b0a\u9650\u3001instance \u72c0\u614b\u9ad8\u5ea6\u76f8\u95dc\u7684\u7ba1\u7406\u4efb\u52d9\u3002\u5728\u95dc\u9375\u74b0\u5883\u4e2d\uff0c\u5f37\u70c8\u5efa\u8b70\u7531\u5c08\u696d\u5718\u968a\u5354\u52a9\u8655\u7406\u3002  <\/p>\n\n\n\n<p><strong>\u6b63\u5f0f\u74b0\u5883\u7684 EC2 Key Rotation \u8a72\u600e\u9ebc\u505a\uff1f<\/strong><\/p>\n\n\n\n<p>\u52e4\u82f1\u79d1\u6280\u53ef\u5354\u52a9\u4f01\u696d\u9032\u884c EC2 Key Pair \u8f2a\u66ff\u3001\u7dca\u6025\u5b58\u53d6\u6551\u63f4\uff0c\u4ee5\u53ca\u95dc\u9375\u7cfb\u7d71\u96f6\u505c\u6a5f\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n\n\n\n<p>\ud83d\udc49 <strong><a href=\"https:\/\/www.elite.cloud\/zh\/contact-us\/\" target=\"_blank\" rel=\"noopener\" title=\"\u806f\u7d61\u6211\u5011\">\u7acb\u5373\u806f\u7e6b\u52e4\u82f1\u79d1\u6280<\/a><\/strong>\uff0c\u70ba\u4f60\u7684\u6b63\u5f0f\u74b0\u5883\u5efa\u7acb\u5b89\u5168\u3001\u53ef\u63a7\u7684\u5b58\u53d6\u7ba1\u7406\u6a5f\u5236\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u900f\u904e authorized_keys \u6216 Root Volume Recovery\uff0c\u5b89\u5168\u5730\u66f4\u63db EC2 Key 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