{"id":491,"date":"2021-05-19T09:18:23","date_gmt":"2021-05-19T01:18:23","guid":{"rendered":"https:\/\/airy.cn\/WordPress\/?p=491"},"modified":"2021-05-19T09:18:54","modified_gmt":"2021-05-19T01:18:54","slug":"ssh-authorized_keys-id_rsa-id_rsa-pub-known_hosts","status":"publish","type":"post","link":"https:\/\/airy.cn\/WordPress\/?p=491","title":{"rendered":"SSH\u4e0bauthorized_keys, id_rsa, id_rsa.pub, known_hosts\u4f5c\u7528"},"content":{"rendered":"\n

\u4e00\u3001known_hsots
ssh\u4f1a\u628a\u4f60\u6bcf\u4e2a\u4f60\u8bbf\u95ee\u8fc7\u8ba1\u7b97\u673a\u7684\u516c\u94a5(public key)\u90fd\u8bb0\u5f55\u5728~\/.ssh\/known_hosts\u3002\u5f53\u4e0b\u6b21\u8bbf\u95ee\u76f8\u540c\u8ba1\u7b97\u673a\u65f6\uff0cOpenSSH\u4f1a\u6838\u5bf9\u516c\u94a5\u3002\u5982\u679c\u516c\u94a5\u4e0d\u540c\uff0cOpenSSH\u4f1a\u53d1\u51fa\u8b66\u544a\uff0c \u907f\u514d\u4f60\u53d7\u5230DNS Hijack\u4e4b\u7c7b\u7684\u653b\u51fb\u3002\u6211\u5728\u4e0a\u9762\u5217\u51fa\u7684\u60c5\u51b5\uff0c\u5c31\u662f\u8fd9\u79cd\u60c5\u51b5\u3002<\/p>\n\n\n\n

\u539f\u56e0\uff1a\u4e00\u53f0\u4e3b\u673a\u4e0a\u6709\u591a\u4e2aLinux\u7cfb\u7edf\uff0c\u4f1a\u7ecf\u5e38\u5207\u6362\uff0c\u90a3\u4e48\u8fd9\u4e9b\u7cfb\u7edf\u4f7f\u7528\u540c\u4e00ip\uff0c\u767b\u5f55\u8fc7\u4e00\u6b21\u540e\u5c31\u4f1a\u628assh\u4fe1\u606f\u8bb0\u5f55\u5728\u672c\u5730\u7684~\/.ssh\/known_hsots\u6587\u4ef6\u4e2d\uff0c\u5207\u6362\u8be5\u7cfb\u7edf\u540e\u518d\u7528ssh\u8bbf\u95ee\u8fd9\u53f0\u4e3b\u673a\u5c31\u4f1a\u51fa\u73b0\u51b2\u7a81\u8b66\u544a\uff0c\u9700\u8981\u624b\u52a8\u5220\u9664\u4fee\u6539known_hsots\u91cc\u9762\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n

\u6709\u4ee5\u4e0b\u4e24\u4e2a\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n

  1. \u624b\u52a8\u5220\u9664\u4fee\u6539known_hsots\u91cc\u9762\u7684\u5185\u5bb9\uff1b<\/li>
  2. \u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u201c~\/.ssh\/config\u201d\uff0c\u52a0\u4e0a\u8fd9\u4e24\u884c\uff0c\u91cd\u542f\u670d\u52a1\u5668\u3002
    StrictHostKeyChecking no
    UserKnownHostsFile \/dev\/null<\/li><\/ol>\n\n\n\n

    \u4f18\u7f3a\u70b9\uff1a<\/p>\n\n\n\n

    1. \u9700\u8981\u6bcf\u6b21\u624b\u52a8\u5220\u9664\u6587\u4ef6\u5185\u5bb9\uff0c\u4e00\u4e9b\u81ea\u52a8\u5316\u811a\u672c\u7684\u65e0\u6cd5\u8fd0\u884c\uff08\u5728SSH\u767b\u9646\u65f6\u5931\u8d25\uff09\uff0c\u4f46\u662f\u5b89\u5168\u6027\u9ad8\uff1b<\/li>
    2. SSH\u767b\u9646\u65f6\u4f1a\u5ffd\u7565known_hsots\u7684\u8bbf\u95ee\uff0c\u4f46\u662f\u5b89\u5168\u6027\u4f4e\uff1b<\/li><\/ol>\n\n\n\n

      \u4e8c\u3001authorized_keys
      1\u3001\u5c31\u662f\u4e3a\u4e86\u8ba9\u4e24\u4e2alinux\u673a\u5668\u4e4b\u95f4\u4f7f\u7528ssh\u4e0d\u9700\u8981\u7528\u6237\u540d\u548c\u5bc6\u7801\u3002\u91c7\u7528\u4e86\u6570\u5b57\u7b7e\u540dRSA\u6216\u8005DSA\u6765\u5b8c\u6210\u8fd9\u4e2a\u64cd\u4f5c<\/p>\n\n\n\n

      2\u3001\u6a21\u578b\u5206\u6790<\/p>\n\n\n\n

      \u5047\u8bbe A \uff08192.168.20.59\uff09\u4e3a\u5ba2\u6237\u673a\u5668\uff0cB\uff08192.168.20.60\uff09\u4e3a\u76ee\u6807\u673a\uff1b<\/p>\n\n\n\n

      \u8981\u8fbe\u5230\u7684\u76ee\u7684\uff1a
      A\u673a\u5668ssh\u767b\u5f55B\u673a\u5668\u65e0\u9700\u8f93\u5165\u5bc6\u7801\uff1b
      \u52a0\u5bc6\u65b9\u5f0f\u9009 rsa|dsa\u5747\u53ef\u4ee5\uff0c\u9ed8\u8ba4dsa
      \u5355\u5411\u767b\u9646\u7684\u64cd\u4f5c\u8fc7\u7a0b\uff08\u80fd\u6ee1\u8db3\u4e0a\u8fb9\u7684\u76ee\u7684\uff09\uff1a
      1\u3001\u767b\u5f55A\u673a\u5668
      2\u3001ssh-keygen -t [rsa|dsa]\uff0c\u5c06\u4f1a\u751f\u6210\u5bc6\u94a5\u6587\u4ef6\u548c\u79c1\u94a5\u6587\u4ef6 id_rsa,id_rsa.pub\u6216id_dsa,id_dsa.pub
      3\u3001\u5c06 .pub \u6587\u4ef6\u590d\u5236\u5230B\u673a\u5668\u7684 .ssh \u76ee\u5f55\uff0c \u5e76 cat id_dsa.pub >> ~\/.ssh\/authorized_keys
      4\u3001\u5927\u529f\u544a\u6210\uff0c\u4eceA\u673a\u5668\u767b\u5f55B\u673a\u5668\u7684\u76ee\u6807\u8d26\u6237\uff0c\u4e0d\u518d\u9700\u8981\u5bc6\u7801\u4e86\uff1b\uff08\u76f4\u63a5\u8fd0\u884c #ssh 192.168.20.60 \uff09<\/p>\n\n\n\n

      \u53cc\u5411\u767b\u9646\u7684\u64cd\u4f5c\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n

      1\u3001ssh-keygen\u505a\u5bc6\u7801\u9a8c\u8bc1\u53ef\u4ee5\u4f7f\u5728\u5411\u5bf9\u65b9\u673a\u5668\u4e0assh ,scp\u4e0d\u7528\u4f7f\u7528\u5bc6\u7801.\u5177\u4f53\u65b9\u6cd5\u5982\u4e0b:
      2\u3001\u4e24\u4e2a\u8282\u70b9\u90fd\u6267\u884c\u64cd\u4f5c\uff1a#ssh-keygen -t rsa
      \u7136\u540e\u5168\u90e8\u56de\u8f66,\u91c7\u7528\u9ed8\u8ba4\u503c.<\/p>\n\n\n\n

      3\u3001\u8fd9\u6837\u751f\u6210\u4e86\u4e00\u5bf9\u5bc6\u94a5\uff0c\u5b58\u653e\u5728\u7528\u6237\u76ee\u5f55\u7684~\/.ssh\u4e0b\u3002
      \u5c06\u516c\u94a5\u8003\u5230\u5bf9\u65b9\u673a\u5668\u7684\u7528\u6237\u76ee\u5f55\u4e0b\uff0c\u5e76\u5c06\u5176\u590d\u5236\u5230~\/.ssh\/authorized_keys\u4e2d\uff08\u64cd\u4f5c\u547d\u4ee4\uff1a#cat id_dsa.pub >> ~\/.ssh\/authorized_keys\uff09\u3002<\/p>\n\n\n\n

      \u4e8c\u3001id_rsa\u3001id_rsa.pub
      \u4e0a\u73ed\u7684\u7b2c\u4e00\u5929\uff0c\u4e0a\u53f8\u5927\u54e5\u90fd\u4f1a\u8bf4\uff1a\u5f85\u4f1a\u7ed9\u6211\u53d1\u4e2a\u516c\u94a5\u5427\u3002
      \u8fd9\u91cc\u8bf4\u7684\u516c\u94a5\u5176\u5b9e\u5c31\u662fid_rsa.pub\u3002
      \u4e0a\u53f8\u5927\u54e5\u662f\u8981\u628a\u6211\u4eec\u7684\u5ba2\u6237\u7aef\u516c\u94a5\u4e0a\u4f20\u5230\u670d\u52a1\u5668\uff0c\u7136\u540e\u518d\u628a\u8fd9\u4e2a\u5ba2\u6237\u7aef\u516c\u94a5\u6dfb\u52a0\u5230authorized_keys\u3002\u6dfb\u52a0\u540e\uff0c\u670d\u52a1\u5668\u5c31\u4f1a\u8ba4\u4e3a\u4f60\u8fd9\u4e2a\u5ba2\u6237\u7aef\u4e3a\u53ef\u4fe1\u4efb\u3002\u4f60\u5219\u53ef\u4ee5\u8bbf\u95ee\u8fd9\u4e2a\u670d\u52a1\u5668\u4e86\u3002<\/p>\n\n\n\n

      \u83b7\u53d6id_rsa.pub<\/p>\n\n\n\n

      \u7ec8\u7aef\u8f93\u5165<\/p>\n\n\n\n

      ssh-keygen
      1
      \u4e00\u8def\u56de\u8f66\uff0c\u6700\u540e\u4f1a\u770b\u5230\u4e00\u4e2a\u77e9\u5f62\u7684\u56fe\u6848\u3002
      \u4f60\u8fd9\u65f6ls\u662f\u770b\u4e0d\u5230.ssh\u6587\u4ef6\u5939\u7684\u3002<\/p>\n\n\n\n

      cd .ssh\/
      1
      \u8fd9\u6837\u5c31\u4f1a\u5207\u6362\u5230.ssh\uff0c\u518dls
      \u5c31\u4f1a\u770b\u5230id_rsa \u548cid_rsa.pub<\/p>\n\n\n\n

      open .\/
      1
      \u5c31\u4f1a\u6253\u5f00\u8fd9\u4e2a\u6587\u4ef6\u5939\u4e86\u3002
      \u73b0\u5728\u4f60\u53ef\u4ee5\u53d1id_rsa.pub\u7ed9\u4f60\u7684\u4e0a\u53f8\u5927\u54e5\u4e86\u3002
      <\/p>\n","protected":false},"excerpt":{"rendered":"

      \u4e00\u3001known_hsotsssh\u4f1a\u628a\u4f60\u6bcf\u4e2a\u4f60\u8bbf\u95ee\u8fc7\u8ba1\u7b97\u673a\u7684\u516c\u94a5(public key)\u90fd\u8bb0\u5f55\u5728~\/.ssh\/k … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-491","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=\/wp\/v2\/posts\/491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=491"}],"version-history":[{"count":1,"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions"}],"predecessor-version":[{"id":492,"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions\/492"}],"wp:attachment":[{"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/airy.cn\/WordPress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}