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> Generate ssh keys used for authentication, password-less logins, and other things.
Generate a key interactively:
ssh-keygen
Specify file in which to save the key:
ssh-keygen -f {~/.ssh/filename}
Generate an ed25519 key with 100 key derivation function rounds:
ssh-keygen -t {ed25519} -a {100}
Generate an RSA 4096-bit key with email as a comment:
ssh-keygen -t {dsa|ecdsa|ed25519|rsa} -b {4096} -C "{comment|email}"
Remove the keys of a host from the known_hosts file (useful when a known host has a new key):
ssh-keygen -R {remote_host}
Retrieve the fingerprint of a key in MD5 Hex:
ssh-keygen -l -E {md5} -f {~/.ssh/filename}
Change the password of a key:
ssh-keygen -p -f {~/.ssh/filename}
Change the type of the key format (for example from OPENSSH format to PEM), the file will be rewritten in-place:
ssh-keygen -p -N "" -m {PEM} -f {~/.ssh/OpenSSH_private_key}
> Copyright © 2014—present the tldr-pages team and contributors.
> This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).
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