I'm trying to ssh from my machine to another machine and from there to a third machine. When I do it manually, it works like this:
localhost$ scp ~/.ssh/id_rsa firstname.lastname@example.org:. localhost$ ssh email@example.com myhost.something.something.com$ ssh -i id_rsa firstname.lastname@example.org 10.25.100.42$
But I would like to do it directly, in one step. And I want my SSH keys from localhost to forward to the third machine. I thought this would work, but it doesn't:
localhost$ ssh -A -t email@example.com ssh 10.25.100.42 Permission denied (publickey). Connection to myhost.something.something.com closed.
Why? How can I do this in a single command from
Here is some more detail you can see when I use the verbose flag:
localhost$ ssh -v -A -t firstname.lastname@example.org ssh 10.25.100.42 OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011 debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying options for * debug1: Connecting to myhost.something.something.com [X.X.X.X] port 22. debug1: Connection established. debug1: identity file /home/myuser/.ssh/id_rsa type 1 debug1: identity file /home/myuser/.ssh/id_rsa-cert type -1 debug1: identity file /home/myuser/.ssh/id_dsa type -1 debug1: identity file /home/myuser/.ssh/id_dsa-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.2 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 pat OpenSSH* debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr email@example.com none debug1: kex: client->server aes128-ctr firstname.lastname@example.org 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: Server host key: RSA 62:d2:58:47:f7:c6:21:b4:a1:b0:cf:4e:44:42:e4:9a debug1: Host 'myhost.something.something.com' is known and matches the RSA host key. debug1: Found key in /home/myuser/.ssh/known_hosts:255 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering RSA public key: /home/myuser/.ssh/id_rsa debug1: Server accepts key: pkalg ssh-rsa blen 279 debug1: read PEM private key done: type RSA debug1: Authentication succeeded (publickey). Authenticated to myhost.something.something.com ([X.X.X.X]:22). debug1: channel 0: new [client-session] debug1: Requesting email@example.com debug1: Entering interactive session. debug1: Requesting authentication agent forwarding. debug1: Sending command: ssh 10.25.100.42 debug1: client_input_channel_open: ctype firstname.lastname@example.org rchan 2 win 65536 max 16384 debug1: channel 1: new [authentication agent connection] debug1: confirm email@example.com Permission denied (publickey). debug1: channel 1: FORCE input drain debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 debug1: client_input_channel_req: channel 0 rtype firstname.lastname@example.org reply 0 debug1: channel 0: free: client-session, nchannels 2 debug1: channel 1: free: authentication agent connection, nchannels 1 Connection to myhost.something.something.com closed. Transferred: sent 3532, received 3312 bytes, in 4.4 seconds Bytes per second: sent 796.1, received 746.6 debug1: Exit status 255