07-30-2008
How do I set the public keys up correctly for a migration from an HP-UNIX server to I
I am getting the error message
"Permission denied (publickey).
lost connection"
when I attempt to do an scp migration. I know how to generate the public keys in both IIS and UNIX, and I believe they are both suppose to have the same public key - but where are they each suppose to be stored (I believe it might be the home directory which I suppose is home/user/.ssh in UNIX but where in IIS?)
In addition, what format should the key be in? (I am not sure if I need to use some "$ ssh-keygen -e -f yourkey.pub > yourkey_ssh2.pub" command to convert the public key to secsh public key file format on the client or just leave it as a long alphanumeric string)? Do the public keys in each server need to be the same format?
Also, Ive read about setting up an "authorized_keys" file and/or an authorization file - but I dont know exactly what these files should contain and where they should be located.
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LEARN ABOUT CENTOS
libssh2_userauth_publickey_fromfile_ex
libssh2_userauth_publickey_fromfile(3) libssh2 manual libssh2_userauth_publickey_fromfile(3)
NAME
libssh2_userauth_publickey_fromfile - authenticate a session with a public key, read from a file
SYNOPSIS
#include <libssh2.h>
int libssh2_userauth_publickey_fromfile_ex(LIBSSH2_SESSION *session,
const char *username,
const char *publickey,
const char *privatekey,
const char *passphrase);
DESCRIPTION
session - Session instance as returned by libssh2_session_init_ex(3)
username - Pointer to user name to authenticate as.
username_len - Length of username.
publickey - Path name of the public key file. (e.g. /etc/ssh/hostkey.pub). If libssh2 is built against OpenSSL, this option can be set to
NULL.
privatekey - Path name of the private key file. (e.g. /etc/ssh/hostkey)
passphrase - Passphrase to use when decoding privatekey.
Attempt public key authentication using a PEM encoded private key file stored on disk
RETURN VALUE
Return 0 on success or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a
negative number, it isn't really a failure per se.
ERRORS
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed.
LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.
LIBSSH2_ERROR_SOCKET_TIMEOUT -
LIBSSH2_ERROR_PUBLICKEY_UNVERIFIED - The username/public key combination was invalid.
LIBSSH2_ERROR_AUTHENTICATION_FAILED - Authentication using the supplied public key was not accepted.
SEE ALSO
libssh2_session_init_ex(3)
libssh2 0.15 1 Jun 2007 libssh2_userauth_publickey_fromfile(3)