使用密鑰登錄的 ssh 從 Mac OSX 到 CentOS 5 遠端伺服器失敗

我正在嘗試設置從我的 mac 到執行 CentOS 的遠端伺服器的無密碼登錄，並使用“user1”的公鑰身份驗證。

我曾經$ ssh-keygen -t rsa在我的 mac 上設置一個公鑰，然後將 mykey.pub 文件複製到 CentOS user1 的 .ssh 目錄，然後做了一個

cat mykey.pub >> authorized_keys

在 .ssh 目錄中。

我還將 .ssh 目錄的權限設置為 700，將 authorized_keys 設置為 600。

當我做一個：

ssh user1@myremoteserver.com

它仍然提示我輸入密碼。這是怎麼回事？

這是我在遠端機器上的 sshd_config 文件的副本：

Protocol 2

SyslogFacility AUTHPRIV

PermitRootLogin no

RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile  .ssh/authorized_keys

PasswordAuthentication yes
PermitEmptyPasswords no

ChallengeResponseAuthentication no

GSSAPIAuthentication yes
GSSAPICleanupCredentials yes

UsePAM no

AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES 
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT 
AcceptEnv LC_IDENTIFICATION LC_ALL

X11Forwarding yes

Subsystem   sftp    /usr/libexec/openssh/sftp-server

更多資訊：

這是我的 ssh -v 輸出。我認為系統預設使用 id_rsa.pub 而不是我命名的 mykey.pub 和 mykey（私鑰文件）。

OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to myremoteserver.com [1.1.1.1 (fake IP)] port 22.
debug1: Connection established.
debug1: identity file /Users/LocalUser/.ssh/identity type -1
debug1: identity file /Users/LocalUser/.ssh/id_rsa type -1
debug1: identity file /Users/LocalUser/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3
debug1: match: OpenSSH_4.3 pat OpenSSH_4*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.2
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 'myremoteserver.com' is known and matches the RSA host key.
debug1: Found key in /Users/LocalUser/.ssh/known_hosts:11
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-with-mic,password
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/LocalUser/.ssh/identity
debug1: Trying private key: /Users/LocalUser/.ssh/id_rsa
debug1: Trying private key: /Users/LocalUser/.ssh/id_dsa
debug1: Next authentication method: password

如何告訴系統使用 mykey 而不是 id_rsa？

看起來你真正的問題就在最後：

如何告訴系統使用 mykey 而不是 id_rsa？

與-i國旗。

FTFM：

-i identity_file
   Selects a file from which the identity (private key) for RSA or
   DSA authentication is read.  The default is ~/.ssh/identity for
   protocol version 1, and ~/.ssh/id_rsa and ~/.ssh/id_dsa for pro-
   tocol version 2.  Identity files may also be specified on a per-
   host basis in the configuration file.  It is possible to have
   multiple -i options (and multiple identities specified in config-
   uration files).

那麼：

ssh -i mykey user1@myremoteserver.com

引用自：https://serverfault.com/questions/291300