SSH/scp에서 -i 옵션 사용

ssh 또는 scp 명령줄에서 -i 옵션을 지정하여 Redhat 서버에 로그인하는 기능을 설정하고 싶습니다. Google의 단계를 따랐지만 작동하지 않는 것 같습니다. 단계는 다음과 같습니다.

On server:
su myuser
ssh-keygen -t rsa
accept all defaults

copy the id_rsa files to the client machine
attempt to ssh to the server with
ssh -i id_rsa myuser@server

권한은 -rw-------및 id_rsa에 -rw-r--r--대한 것입니다 id_rsa.pub. 내가 놓친 것이 있나요? Google에서 이 옵션에 대한 정보를 찾는 것은 매우 어렵습니다.

-v 옵션을 사용한 출력은 다음과 같습니다.

OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to server [192.168.6.97] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file id_rsa type 1
debug1: identity file id_rsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3
debug1: match: OpenSSH_5.3 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'server' is known and matches the RSA host key.
debug1: Found key in /root/.ssh/known_hosts:34
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure.  Minor code may provide more information
Credentials cache file '/tmp/krb5cc_0' not found

debug1: Unspecified GSS failure.  Minor code may provide more information
Credentials cache file '/tmp/krb5cc_0' not found

debug1: Unspecified GSS failure.  Minor code may provide more information


debug1: Unspecified GSS failure.  Minor code may provide more information
Credentials cache file '/tmp/krb5cc_0' not found

debug1: Next authentication method: publickey
debug1: Offering public key: id_rsa
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: password
myuser@server's password: