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 whi

Answer 1

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.

Answer 2

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`

Answer 3

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.

Answer 4

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 & 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.

Answer 5

You need to specify the key by using -i option.

ssh-copy-id -i your_public_key user@host

Thanks.

Answer 6

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 > ~/.ssh/id_rsa.pub