Cannot configure ssh key

Hi, trying to setup ssh login, so that i can hop into my machine from my android, which makes me feel cool, hehe.
so i am using openssh.

  1. i configured my port by uncommenting port 22 in /etc/ssh/sshd_config
  2. then i started the daemon by sudo systemctl start sshd.service
  3. i tried to generate a key ssh-keygen and got a file
  4. then i tried to add the key to my sshd server with ssh-copy-id -i ~/ -p <port> [email protected]
  5. then i copied the file to my android, boot up termux. and then i did ssh -i -p <port> [email protected]

it says something like this:

the authenticity of host can't be established. fingerprint is .... 
The key is not known by any other names. 
are you sure.... 
warning permanently added... 
Load key "" : error in libcrypto
[email protected]'s password:

Is the android the client in this case? The client needs the private key. It looks like you are trying to use the public key on both sides.

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how do i generate a private key? what does the ssh-keygen do?

It generates both. The private key is named keyname and the public is named is named By default, both will be placed in ~/.ssh

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aha, i missed that part.

thank you <3

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