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 and
append the indicated identity file to that machine's ~/.ssh/autho‐
rized_keys file.
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.)
NOTES
This program does not modify the permissions of any pre-existing files
or directories. Therefore, if the remote sshd has StrictModes set in
its configuration, then the user's home, ~/.ssh folder, and
~/.ssh/authorized_keys file may need to have group writability disabled
manually, e.g. via
chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys
on the remote machine.
SEE ALSOssh(1), ssh-agent(1), sshd(8)OpenSSH 14 November 1999 SSH-COPY-ID(1)