ssh-copy-id: ERROR: failed to open ID file '/root/.pub': 没有那个文件或目录

问题

 

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[root@hadoop1 sbin]# ssh-copy-id hadoop1   /usr/bin/ssh-copy-id: ERROR: failed to open ID file '/root/.pub': 没有那个文件或目录     (to install the contents of '/root/.pub' anyway, look at the -f option)

解决方法

 

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[root@hadoop1 sbin]# ssh-keygen -t dsa Generating public/private dsa key pair. Enter file in which to save the key (/root/.ssh/id_dsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_dsa. Your public key has been saved in /root/.ssh/id_dsa.pub. The key fingerprint is: SHA256:eNitxI+ZXMbqTHnZzQnql31bC+klM1ivGdhCQRssWhg root@hadoop1 The key's randomart image is: +---[DSA 1024]----+ |       Eo .o     | |       . o..o    | |        o .o     | |       * o  .    | |      o S =...   | |       + @.+=+o. | |        X =+.@+o.| |       + o  = @ +| |        o .. + +.| +----[SHA256]-----+

再次 ssh-copy-id hadoop1

 

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[root@hadoop1 sbin]# ssh-copy-id hadoop1 /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_dsa.pub" /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys root@hadoop1's password: Number of key(s) added: 1 Now try logging into the machine, with: "ssh 'hadoop1'" and check to make sure that only the key(s) you wanted were added.