{"id":9369,"date":"2013-11-01T15:06:50","date_gmt":"2013-11-01T20:06:50","guid":{"rendered":"http:\/\/jianmingli.com\/wp\/?p=9369"},"modified":"2014-05-23T12:36:05","modified_gmt":"2014-05-23T17:36:05","slug":"setup-ssh-secure-shell-client-public-key-authentication-for-centos-ssh-server","status":"publish","type":"post","link":"https:\/\/jianmingli.com\/wp\/?p=9369","title":{"rendered":"Setup SSH Secure Shell Client Public Key Authentication for CentOS SSH Server"},"content":{"rendered":"
\n

Contents<\/h2>\n
    \n\t
  1. \n\t\tEnv<\/a>\n\t<\/li>\n\t
  2. \n\t\tGenerate Private Key<\/a>\n\t<\/li>\n\t
  3. \n\t\tSetup Public Key in CentOS<\/a>\n\t\t
      \n\t\t\t
    1. \n\t\t\t\tCopy Public Key<\/a>\n\t\t\t<\/li>\n\t\t\t
    2. \n\t\t\t\tSetup Public Key in CentOS<\/a>\n\t\t\t<\/li>\n\t\t<\/ol>\n\t
    3. \n\t\tReferences<\/a>\n\t<\/li>\n<\/ol>\n<\/ol>\n<\/div>\n
       <\/div>\n

      Env<\/h2><\/span>\n

      * SSH Secure Shell 3.2.9 (Build 283) from SSH Communications Security Corp
      \n* CentOS 5.6<\/p>\n

      Generate Private Key<\/h2><\/span>\n

      * Open SSH Secure Shell client
      \n* Select Edit > Settings > Global Settings > User Authentication > Keys<\/em>
      \n* Click Generate New<\/em> button<\/p>\n

      \"\"<\/a><\/h6><\/span>\n

      * Select:
      \n– Key Type RSA
      \n– Key Length: 2048<\/p>\n

      \"\"<\/a><\/h6><\/span>\n

      * Click Next when key generation process has completed<\/p>\n

      \"\"<\/a><\/h6><\/span>\n

      * Enter file name and passphrase<\/p>\n

      \"\"<\/a><\/h6><\/span>\n

      * Click Finish<\/p>\n

      \"\"<\/a><\/h6><\/span>\n

      Setup Public Key in CentOS<\/h2><\/span>\n

      Copy Public Key<\/h3><\/span>\n

      * From SSH Secure Shell client
      \n* Select Edit > Settings > Global Settings > User Authentication > Keys<\/em>
      \n* Click Public key management > View…<\/em><\/p>\n

      \"\"<\/a><\/h6><\/span>\n

      * Copy the public key text string<\/p>\n

      Setup Public Key in CentOS<\/h3><\/span>\n

      * Login CentOS
      \n* Create .ssh<\/strong> directory if it does not already exist
      \n* Change to .ssh<\/em> directory<\/p>\n

      \r\nmkdir ~\/.ssh\r\nchmod 700 ~\/.ssh\r\ncd ~\/.ssh\r\n<\/pre>\n
      * Upload public key to .ssh<\/em> directory
      \n– Or you can create a file, named e.g. ssh2_key.pub<\/strong>, and cut and paste the public key string onto the the file
      \n* Convert SSH2 key to OpenSSH key format and append to authorized_keys2<\/strong> file.
      \n* Also chmod to 600 for the file:<\/p>\n
      \r\nssh-keygen -i -f ~\/.ssh\/ssh2_key.pub >> ~\/.ssh\/authorized_keys2\r\nchmod 600 ~\/.ssh\/authorized_keys2\r\n<\/pre>\n
      References<\/h2><\/span>\n
      * SSH: Convert OpenSSH to SSH2 and vise versa<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
      Env * SSH Secure Shell 3.2.9 (Build 283) from SSH Communications Security Corp * CentOS 5.6 Generate Private Key * Open SSH Secure Shell client * Select Edit > Settings > Global Settings > User Authentication > Keys * Click … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[451],"tags":[455,454,639],"class_list":["post-9369","post","type-post","status-publish","format-standard","hentry","category-ssh","tag-openssh","tag-publickey","tag-ssh"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8cRUO-2r7","_links":{"self":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/9369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9369"}],"version-history":[{"count":4,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/9369\/revisions"}],"predecessor-version":[{"id":10027,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/9369\/revisions\/10027"}],"wp:attachment":[{"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jianmingli.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}