SSH-COPY-ID(1)SSH-COPY-ID(1)NAME
ssh-copy-id - install your public key in a remote machine's autho‐
rized_keys
SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine
DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine
(presumably using a login password, so password authentication should
be enabled, unless you've done some clever use of multiple identities)
It also changes the permissions of the remote user's home, ~/.ssh, and
~/.ssh/authorized_keys to remove group writability (which would other‐
wise prevent you from logging in, if the remote sshd has StrictModes
set in its configuration). 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. If the -i option is used, or the ssh-add produced no output,
then it uses the contents of the identity file. Once it has one or
more fingerprints (by whatever means) it uses ssh to append them to
~/.ssh/authorized_keys on the remote machine (creating the file, and
directory, if necessary)
SEE ALSOssh(1), ssh-agent(1), sshd(8)OpenSSH 14 November 1999 SSH-COPY-ID(1)