SSH-COPY-ID(1)SSH-COPY-ID(1)NAMEssh-copy-id - install your public key in a remote machine's autho‐
rized_keys
SYNOPSISssh-copy-id [-i [identity_file]] [user@]machine
DESCRIPTIONssh-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 fin‐
gerprints (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)