[Bug 2128] ssh-copy-id doesn't check if a public key already exists in a remote servers ~/.ssh/authorized_keys file

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Tue Jul 16 06:35:31 EST 2013


Justin Garrison <justinleegarrison at gmail.com> changed:

           What    |Removed                     |Added
                 CC|                            |justinleegarrison at gmail.com

--- Comment #1 from Justin Garrison <justinleegarrison at gmail.com> ---
Created attachment 2317
  --> https://bugzilla.mindrot.org/attachment.cgi?id=2317&action=edit
Alternate ssh-copy-id script

I added the following check to to ssh-copy-id script from my Linux Mint
15 (OpenSSH 6.1p1) machine.

grep -f ~/.ssh/authorized_keys > /dev/null 2>&1; ! [ -a
~/.ssh/authorized_keys ] || [ $? -ne 0 ] && 

(please view the attached file for context)

I also verified that the modified section was the same on RHEL 6.4
(OpenSSH 5.3) and Fedora 14 (OpenSSH 5.5p1) but could not verify the
file contents from the latest OpenSSH package. I am assuming the line
is the same in the latest version.

This test will check if the public key contents already exists in the
authorized_keys file or if the authorized_keys file does not exist. If
the public key is already in the file or it does not exist then the
public key contents will be appended to the file (and create it if

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