ssh-copy-id no identities found error

Question

I have few client systems where I need to push the ssh key and login from my server without authentication prompts   First  on the server   I created ssh key as below which was successful     ssh-keygen -t rsa -N    -f my key   Second  tried copying the pub key but fails with no identity error  Am i doing a wrong step here       ssh-copy-id my key pub 10 10 1 1  usr bin ssh-copy-id  ERROR  No identities found

User · Answer

The simplest way is to   ssh-keygen  enter   enter   enter   cd    ssh ssh-copy-id -i id rsa pub USERNAME SERVERTARGET   Att   Its very very simple   In manual of  ss-keygen  explains    DESCRIPTION      ssh-keygen generates  manages and converts authentication keys for ssh 1    ssh-keygen can create RSA keys for use by SSH protocol version 1 and      DSA  ECDSA or RSA keys for use by SSH protocol version 2   The type of key to be generated is specified with the -t option   If invoked without      any arguments  ssh-keygen will generate an RSA key for use in SSH protocol 2 connections

User · Answer

Old post but I came up with this problem today  ended up googling and had found myself here  I had figured it out on my own but thought I d share my issue  amp  solution in my case to help out anyone else who may have the same issue   Issue    root centos  username    ssh-keygen -t rsa   Enter file in which to save the key   root  ssh id rsa  I HAD JUST HIT ENTER    usr bin ssh-copy-id  ERROR  No identities found   Solution   Enter file in which to save the key   root  ssh id rsa      home  username  id rsa     Be sure if you are doing this as root you are coping the key into the user directory you wish to login with  NOT the root user directory   I was sshing into the machine when performing this operation  so I guess ssh-copy-id just point to the dir you are logged in as by default   Hope this helps anyone

User · Answer

In my case it was the missing  pub extension of a key  I pasted it from clipboard and saved as mykey  The following command returned described error   ssh-copy-id -i mykey localhost   After renaming it with mv mykey mykey pub  works correctly   ssh-copy-id -i mykey pub localhost

User · Answer

You need to specify the key by using -i option   ssh-copy-id -i your public key user host   Thanks

User · Answer

FWIW  the -i option was a red herring for me   ssh-copy-id will use    ssh id rsa pub by default  What was keeping it from working for me was the permissions on the   directory  the    ssh directory  and the    ssh authorized keys file on the remote computer  All three need to be set with chmod 755      ssh    ssh authorized keys  then ssh-copy-id your-remote-server com will work

User · Answer

You need to use the -i flag   ssh-copy-id -i my key pub 10 10 1 1   From the man page      If the -i option is given then the identity file  defaults to    ssh id rsa pub  is used  regardless of whether there are any keys in your ssh-agent  Otherwise  if this  ssh-add -L provides any output  it uses that in preference to the identity file

User · Answer

Generating ssh keys on the client solved it for me    ssh-keygen -t rsa

User · Answer

Use simple ssh-keyscan hostname to find if key s  exists on both sites  ssh-keyscan rc1 localdomain  or rc2     ssh-keyscan rc1   rc1 SSH-2 0-OpenSSH 5 3 rc1 ssh-rsa AAAAB3NzaC1yc2EAAAABI           ssh-keyscan rc2 localdomain  or rc2     ssh-keyscan rc2   rac2 SSH-2 0-OpenSSH 5 3 rac2 ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAys7kG6pNiC

User · Answer

Run following command     ssh-add   If it gives following error   Could not open a connection to your authentication agent  To remove this error  Run following command     eval  ssh-agent

User · Answer

The ssh-copy-id is not able to locate the id rsa pub file that is generated by ssh-keygen in your system  Use the following command to complete    find the path of the  pub file  locate   pub copy the path  ex   home user name  ssh id rsa pub  and run the following command  ssh-copy-id -i  home user name  ssh id rsa pub hostname

User · Answer

I had faced this problem today while setting up ssh between name node and data node in fully distributed mode between two VMs in CentOS   The problem was faced because I ran the below command from data node instead of name node ssh-copy-id -i  home hduser  ssh id ras pub hduser HadoopBox2  Since the public key file did not exist in data node it threw the error

User · Answer

came up across this one  on an existing account with private key I copied manually from elsewhere  so the error is because the public key is missing  so simply generate one from private   ssh-keygen -y -f    ssh id rsa  gt     ssh id rsa pub

User · Answer

Actually issues in one of Ubuntu machine is ssh-keygen command was not run properly  I tried running again and navigated into  home user1  ssh and able to see id rsa and id rsa pub keys  then tried command ssh-copy-id   and it was working fine

[unix] ssh-copy-id no identities found error

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